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Avaya Configuring IP Multicasting and Multimedia Services User's Manual

1. 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose MOSPF The MOSPF Policies menu opens 5 Choose Accept DVMRP Route Policies The MOSPF Accept DVMRP Routes Policy Filters window opens 6 Select the name of the MOSPF accept Your selection is highlighted DVMRP route policy that you want to disable or reenable 7 Set the Enable parameter Click on Help or see the parameter description on page A 73 8 Click on Done You return to the Configuration Manager window 117355 D Rev 00 Chapter 6 Customizing Protocol Independent Multicast This chapter describes Protocol Independent Multicast Sparse Mode PIM SM and provides instructions for configuring it Topic Page PIM Concepts and Terminology 6 2 Customizing PIM Globally 6 19 Customizing PIM on an Interface 6 31 Deleting PIM 6 37 Note The Bay Networks implementation of PIM supports sparse mode only In this guide PIM SM is referred to as PIM 117355 D Rev 00 6 1 Configuring IP Multicasting and Multimedia Services PIM Concepts and Terminology PIM which is defined in RFC 2362 is a multicast routing protocol that efficiently routes packets between members of multicast groups that are sparsely distributed throughout the internetwork Dense mode protocols such as DVMRP broadcast multicast traffic to all routers over an entire internetwork PIM sends m
2. Router without Forwarding Mode Static DVMPP or MOSPF In Circuit Specify interface 1 multicast protocols Out Circuits Specify interfaces 2and3 2 IGMP 3 IGMP IP0102A Figure 3 1 Forwarding Multicast Traffic over Static Interfaces 3 34 117355 D Rev 00 Configuring and Customizing IGMP In Figure 3 2 multicast traffic is forwarded from a nonmulticast network to a nonmulticast interface on the router and is sent out through multicast interfaces on the same router To create an IGMP static forwarding policy for this type of scenario e Set the forwarding mode to static to dynamic e Specify the in circuit in this example IGMP interface 1 e Set the inbound IGMP circuit s static forward cache lifetime to a value appropriate for the multicast protocol that will be transferring the traffic out of the router For instructions see Specifying the Static Forward Cache Lifetime on page 3 27 Unicast network Multicast traffic oO Configure IGMP static Router with forwarding policy as follows DVMRP or MOSPF multicast protocols on outgoing interfaces Forwarding Mode Static to Dynamic In Circuit Specify interface 1 Traffic forwarded per multicast protocol rules Multicast network Host Multicast receivers IP0103A Figure 3 2 Forwarding Multicast Traffic from a Static Network to a Dynamic Network 11735
3. Ii H IGMP Relay Host 1 Local LAN C group L E member IP0073A Figure 9 4 IGMP Relay and Upstream Multicast Data 9 6 117355 D Rev 00 Configuring IGMP Relay A downstream host can also send an unsolicited join message to the IGMP Relay device IGMP Relay forwards the message upstream to the IP multicast router In Figure 9 5 the following events occur 1 A host on LAN B sends an unsolicited join message to the IGMP Relay device IGMP Relay forwards the join message to the IP multicast router 2 The IP multicast router receives a datagram addressed to the group that the host has joined The IP multicast router forwards the datagram downstream to IGMP Relay 4 IGMP Relay determines that a member of the group resides on LAN B and forwards the datagram on the downstream interface to LAN B IP multicast router IGMP Relay _ E Host 1 e Group LAN C member 4 Unsolicited join message Multicast data IP0074A Figure 9 5 IGMP Relay and Downstream Multicast Data 117355 D Rev 00 9 7 Configuring IP Multicas
4. 8 16 117355 D Rev 00 Chapter 9 Configuring IGMP Relay This chapter consists of the following topics Topic Page IGMP Relay Overview 9 2 Enabling and Disabling IGMP Relay Globally 9 9 Specifying a Timeout Value for Multicast Table Entries 9 11 Configuring Upstream Data Forwarding 2 12 Specifying the Relay Interface Type 9 13 Configuring Unsolicited Reports on an Upstream Interface 9 16 Configuring MOSPF for Use with IGMP Relay 9 18 Configuring a DVMRP Router for Use with IGMP Relay 9 20 Configuring a Backup Multicast Router 9 22 Configuring IGMP Relay with Router Redundancy 9 23 117355 D Rev 00 9 1 Configuring IP Multicasting and Multimedia Services IGMP Relay Overview An IGMP Relay device is a unicast router with an interface to a multicast router and interfaces to one or more networks containing network hosts Figure 9 1 shows an IGMP Relay device connected to three LANs containing host systems z IP multicast router IGMP Relay LAN B LAN C E B IP0077A Figure 9 1 IGMP Relay Device The IGMP Relay device provides the following group registration services for an IP multicast router e Sends IGMP host members
5. pretends PPT EE T wade pence A 64 DVMRP Announce Policy Parameters ccesseecceeeseeeeeseseeeneeeeeeserteeeeeseereees ABQ MOSPF Accept DVMRP Route Policy Parameters cccccesseeeeeeesetteeeeneeeees A 73 IGMP Group Poly Parameters siscccrccsceehese tines ioe ssctennied eater merece eeeaee A 76 IGMP Static Forwarding Policy Parameters ccceicsecdiesssaveseestcaaesaeaesaseceestacaveees A 80 IGMP Boundary Group Parameters Lape E EREE E E Moga ee A 84 xii 117355 D Rev 00 Appendix B Troubleshooting Commands WARP CRINGE riirn nsec saseweuxedosenpdlaantoesaiavetmordked T Ea B 2 UTED IS UA ANA aa a A A Geced inten tdurtinbegsetbeneys B 4 FE Command sa cccrasssdegpessoologenmnies re re eects ssece eat ta E E eae an aa BoD Index 117355 D Rev 00 xiii Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 3 1 Figure 3 2 Figure 3 3 Figure 4 1 Figure 5 1 Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 7 1 Figure 7 2 Figure 9 1 Figure 9 2 Figure 9 3 Figure 9 4 Figure 9 5 Figure 9 6 Figure 9 7 117355 D Rev 00 Figures Using IP Traffic Filters for Unicast to Multicast and Multicast to Unicast Data Migration E E sales Forwarding Multicast Traffic from a Dynamic Multicast Netwerk 1o ete NTC AS ala tj conzncuks sicenauts sened enna nioexudesl Ea En ARS 1 9 Forwarding Multicast Traffic from a Static Nonmulticast
6. Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Rendezvous Point RP Threshold Configuration Manager gt Protocols gt IP gt PIM gt Global Enable Enable Disable Indicates whether the RP router switches from a shared tree to a source specific shortest path tree The RP establishes a shortest path tree when the data rate exceeds the configured threshold value specified using the RP Data Threshold parameter Set to Enable if you want the RP router to switch from a shared tree to a shortest path tree to the source of that data Set to Disable to prevent the RP router from switching to the shortest path tree regardless of the data rate specified using the RP Data Threshold parameter 1 3 6 1 4 1 18 3 5 3 14 1 11 RP Data Threshold Configuration Manager gt Protocols gt IP gt PIM gt Global 1024 0 to 65 535 bytes per second Specifies the rate in bytes per second at which the RP router receives data from the source If the data rate exceeds the RP data rate threshold the RP router switches to a shortest path tree between the source and the RP router Specify a data rate threshold from 0 through 64 to enable the RP router to immediately switch from the shared tree to the shortest path tree upon receiving the first packet from the source Otherwise the date rate is averaged over the threshold sample interval and the swi
7. The PIM Global Configuration window opens 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 29 Configuring IP Multicasting and Multimedia Services Logging PIM Messages By default PIM does not log PIM informational warning debug or trace messages To enable the logging of PIM informational warning debug and trace messages complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens Set the following parameters Info Warnings Debug Trace Click on Help or see the parameter descriptions beginning on page A 48 Click on OK You return to the Configuration Manager window 6 30 117355 D Rev 00 Customizing Protocol Independent Multicast Customizing PIM on an Interface You customize PIM on an interface by modifying PIM parameters as described under the following topics Topic Page Disabling and Reenabling PIM on an Interface 6 31 Setting the Hello Interval 6 32 Setting the Cache Timeout Interval 6 33 Setting the Join Prune Interval for an Interface 6 34 Enabling and Disabling IGMP Relay on a Downstream Router 6
8. mtrace 192 32 27 193 192 32 199 162 224 2 0 1 Mtrace from 192 32 27 193 to 192 32 199 162 via group 224 2 0 1 Querying full reverse path 0 192 32 199 162 1 192 32 199 162 DVMRP thresh 1 2 192 32 271 1 93 Round trip time 1039 ms total ttl of 2 required Waiting to accumulate statistics Source Response Dest Overall Packet Statistics For Traffic From 192 32 27 193 192 232 199 161 Packet 192 32427 r193 To 224 2 0 1 v L BEG 3ms Rate Lost Sent Pct Rate 192532 6271 3193 192 32 199 162 v __ Cel 2 0 pps 192 32 199 0162 ae ae Receiver Query Source 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services mrinfo Command The mrinfo command displays the capabilities of a DVMRP multicast router It shows whether the router supports mtrace and pruning provides revision information and provides the link characteristics for every link on the router To display this information enter the mrinfo command at the Technician Interface prompt as follows mrinfo lt options gt lt router_address gt lt options gt r lt retry_count gt t lt timeout_count gt Table B 2 describes each mrinfo command option Table B 2 mrinfo Options Option Meaning r lt retry_count gt Set the neighbor query retry limit to retry_count The default is three retries t lt timeout_count gt Set the number of seconds to wait for the neighbor query reply to timeout_count The default timeout is 3
9. A PIM router configured with a DR election priority sends to its PIM neighbors a Hello message that contains its priority level The PIM router with the highest priority level is elected the DR for the LAN Local routers not configured with a DR election priority level elect a DR based on the highest IP address By default the local DR priority is 1 You can specify a priority value from 1 through 65 535 for a PIM router To disable the DR election priority level on the LAN enter a priority value of 0 To set the DR election priority level complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens 5 Set the Local DR Priority parameter Click on Help or see the parameter description on page A 54 6 Click on OK You return to the Configuration Manager window 6 36 117355 D Rev 00 Deleting PIM Customizing Protocol Independent Multicast To delete PIM from an IP interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a connector configured with PIM The Edit Connector window opens 2 Choose Edit Circuit The Circuit Definition window
10. Configuring and Customizing IGMP To configure a static host entry complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Static Groups The IP IGMP Static Groups window opens 5 Click on Add The IGMP Static Group window opens 6 Set the following parameters Group Address e Prefix Length Circuit Name Click on Help or see the parameter descriptions beginning on page A 22 7 Click on OK You return to the IP IGMP Static Groups window 8 Click on Done You return to the Configuration Manager window 117355 D Rev 00 3 29 Configuring IP Multicasting and Multimedia Services Configuring an IGMP Boundary Group You configure an IGMP boundary group by supplying a range of multicast group addresses expressed as an address and a prefix and a list of IP interfaces No multicast group address that falls within the range that you specify is accepted or forwarded on the interfaces that you specify For more information about groups see Multicast Host Groups on page 1 2 You can use Site Manager to define an IGMP boundary group Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose
11. For example the following command sets the unconfirmed timer to 1000 seconds 16 minutes 40 seconds dvmrp unconfirmed route timeout 1000 dvmrp 117355 D Rev 00 4 15 Configuring IP Multicasting and Multimedia Services Using Site Manager To set the unconfirmed route timer complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Global The DVMRP menu opens The DVMRP Global Configuration window opens Set the Garbage Timeout parameter Click on Help or see the parameter description on page A 5 Click on Save You return to the Configuration Manager window 117355 D Rev 00 Setting the Customizing DVMRP Neighbor Report Timer The neighbor report timer specifies how long the router waits to receive a report from a neighbor before considering the connection inactive By default DVMRP waits 140 seconds 2 minutes 20 seconds You can use the BCC or Site Manager to specify a value from 40 through 8000 seconds 2 hours 13 minutes and 20 seconds Note DVMRP timers must be the same throughout the network Using the BCC To reset the neighbor report timer navigate to the global DVMRP prompt for example box ip dvmrp and enter neighbor timeout lt seconds gt seconds i
12. If you want this filter to match any source do not specify a value for this parameter To specify an exact source address or range of source addresses enter one or more octet groupings in the following form First octet exact 1 or range 2 Next 4 octets source address Next 4 octets source mask Exact means match only the specific source number and mask Range means match any prefix that falls in the range indicated by the source and mask 1 3 6 1 4 1 18 3 5 3 2 6 11 1 5 Action Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies Ignore Accept Ignore Specifies whether to accept or ignore the group join Specify Accept to accept the group join or Ignore to ignore the group join 1 3 6 1 4 1 18 3 5 3 2 6 11 1 6 117355 D Rev 00 A 77 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies 0 A metric value Specifies a metric value to be used to compare this policy with other policies that a route may match A policy with a higher metric takes precedence over a policy with a lower metric In case of a tie the protocol uses an internal index value assigned to the policy by IP software Th
13. You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Global The RSVP Base Group Record window opens Set the following parameters Info Log Filter Debug Log Filter Trace Log Filter Click on Help or see the parameter descriptions beginning on page A 55 Click on Save You return to the Configuration Manager window 7 6 117355 D Rev 00 Configuring RSVP on an Interface Configuring RSVP When you add RSVP to an IP interface RSVP is configured with default values for all interface parameters You customize RSVP on the interface by setting interface parameters as described under the following topics Topic Page Disabling and Reenabling RSVP on an Interface 7 7 Setting the RSVP Default Refresh Timer 7 8 Setting the RSVP Default Lifetime Multiplier 7 9 Setting the RSVP Refresh Blockade Multiplier 7 10 Setting the TTL Override 7 11 Setting the Route Delay Value 7 12 Enabling and Disabling UDP Encapsulation Tis Disabling and Reenabling RSVP on an Interface By default RSVP is enabled on every interface on which it is configured To disable or reenable RSVP on an interface complete the following tasks Site Manager Procedure You do this System respon
14. Configuring IP Multicasting and Multimedia Services BayRS Version 13 20 Site Manager Software Version 7 20 BCC Version 4 20 Part No 117355 D Rev 00 April 1999 NORTEL NETWORKS Bay Networks Inc 4401 Great America Parkway Santa Clara CA 95054 Copyright 1999 Bay Networks Inc All rights reserved Printed in the USA April 1999 The information in this document is subject to change without notice The statements configurations technical data and recommendations in this document are believed to be accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in this document is proprietary to Bay Networks Inc The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license A summary of the Software License is included in this document Trademarks Bay Networks is a registered trademark and BayRS and BCC are trademarks of Bay Networks Inc All other trademarks and registered trademarks are the property of their respective owners Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notwithstanding any other lic
15. Connector window 3 Set the Unreserved Queue Length parameter Click on Help or see the parameter description on page A 32 4 Click on OK You return to the Configuration Manager window 117355 D Rev 00 8 11 Configuring IP Multicasting and Multimedia Services Specifying the Multiline Select Algorithm If you configured LRM on a multiline circuit you can choose one of two algorithms that determine how LRM selects which line to use for a new resource request First fit Always uses the first available line that can service reserved traffic requests Round robin Rotates the use of lines available to service requests All lines for a circuit must use the same algorithm If any one line on a circuit specifies First Fit all lines use the first fit algorithm To specify the multiline select algorithm complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens Set the Multiline Select Algorithm parameter Click on Help or see the parameter description on page A 32 Click on OK You return to the Configuration Manager window You set this parameter only if you configured the Resource Manager on a
16. Function Instructions MIB Object ID Neighbor Timeout Configuration Manager gt Protocols gt IP gt DVMRP gt Global 140 40 to 8000 seconds Specifies in seconds how long a connection with a router neighbor is considered active without receiving a subsequent probe or report from the neighbor Determine a neighbor timeout period and specify a value from 40 through 8000 seconds 2 hours 13 minutes and 20 seconds 1 3 6 1 4 1 18 3 5 3 12 1 7 Route Expiration Timeout Configuration Manager gt Protocols gt IP gt DVMRP gt Global 200 20 to 4000 seconds Specifies in seconds how long a route is considered valid without the receipt of a subsequent update indicating that the route is reachable This value represents the duration of time that this route will be used Upon expiration of this timer this route is advertised as unreachable until it is refreshed or deleted Enter a value from 20 through 4000 seconds 1 hour 6 minutes and 40 seconds that represents the duration of time this route will be used without being refreshed 1 3 6 1 4 1 18 3 5 3 12 1 8 A 4 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Garbage Timeout Configuration Manager gt Protocols gt IP gt DVMRP gt Global 340 40 to 8000 seconds Specifies in seconds
17. In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay 4 Choose Interfaces The IGMP menu opens The IGMP Interface Parameters window opens Set the Interface Query Rate parameter Click on Help or see the parameter description on page A 23 Click on Apply and then click on Done You return to the Configuration Manager window 3 20 117355 D Rev 00 Configuring and Customizing IGMP Specifying a Membership Timeout Interval By default a local group membership is valid for 260 seconds 4 minutes 20 seconds without the receipt of a subsequent report for that group You can use the BCC or Site Manager to specify a timeout interval from 50 to 8192 seconds 2 hours 16 minutes and 32 seconds Using the BCC To set the membership timeout interval navigate to the IGMP prompt for the IP interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter membership timeout lt seconds gt seconds is the number of seconds from 50 through 8192 For example the following command specifies a membership timeout interval of 300 seconds 5 minutes igmp 2 2 2 2 3 membership timeout 300 igmp 2 2 2 2 3 Using Site Manager To specify a membership timeout interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Conf
18. Index 1 D dataflow defined 1 4 Debug Level parameter DVMRP global 4 29 A 6 Debug Log Filter parameter RSVP global 7 6 A 55 debug messages logging DVMRP 4 29 IGMP 3 10 PIM 6 30 RSVP 7 6 Debug parameter IGMP global 3 11 A 19 PIM global 6 30 A 49 Default Join Prune Interval parameter PIM global 6 24 A 40 default route DVMRP circuit advertising 4 44 generating 4 44 listening for 4 46 default route DVMRP tunnel advertising 4 62 generating 4 62 listening for 4 64 deleting protocols from an interface DVMRP 4 84 IGMP 3 39 PIM 6 37 RSVP 7 14 Designated Router Timeout parameter IGMP interface 3 23 A 24 directly connected neighbors DVMRP defined 4 2 disabling DVMRP accept policies 4 78 announce policies 4 83 globally 4 9 on a circuit 4 31 on a tunnel 4 53 unicast accept policies 4 73 IGMP boundary group 3 31 globally 3 5 group policies 3 33 on an interface 3 16 static forwarding policies 3 38 Index 2 disabling continued MOSPF accept DVMRP route policies 5 12 globally 5 4 PIM globally 6 20 on an interface 6 31 RSVP on an interface 7 7 Distance Vector Multicast Routing Protocol See DVMRP Downstream IGMP Relay parameter PIM interface 6 35 A 53 DVMRP Distance Vector Multicast Routing Protocol accept policies 4 74 announce policies 4 79 cost of a route defined 4 10 of a tunnel 4 56 of an interface 4 35 default route advertisin
19. Network Address Translation NAT Revised IP Security Option RIPSO and Blacker front end services and instructions for configuring them You can now print Bay Networks technical manuals and release notes free directly from the Internet Go to support baynetworks com library tpubs Find the Bay Networks product for which you need documentation Then locate the specific category and model or version for your hardware or software product Using Adobe Acrobat Reader you can open the manuals and release notes search for the sections you need and print them on most standard printers You can download Acrobat Reader free from the Adobe Systems Web site www adobe com 117355 D Rev 00 xxiii Configuring IP Multicasting and Multimedia Services You can purchase Bay Networks documentation sets CDs and selected technical publications through the Bay Networks Collateral Catalog The catalog is located on the World Wide Web at support baynetworks com catalog html and is divided into sections arranged alphabetically e The CD ROMs section lists available CDs e The Guides Books section lists books on technical topics e The Technical Manuals section lists available printed documentation sets Make a note of the part numbers and prices of the items that you want to order Use the Marketing Collateral Catalog description link to place an order and to print the order form How to Get Help If you purchased a
20. Note Multicast data packets are affected by traffic filters Therefore you must ensure that traffic filters configured on a multicast router do not prevent a host that is a member of a group from receiving packets intended for that group 117355 D Rev 00 Multicasting and Multimedia Overview Multicast Addresses Each host group is assigned a unique multicast address To reach all members of the group a sender uses the multicast address as the destination address of the datagram An IP Version 4 multicast address is a Class D address the high order bits are set to 1110 from 224 0 0 0 through 239 255 255 255 The block of addresses from 224 0 0 1 through 224 0 0 255 is reserved for routing protocols and other low level protocols Multicast routers will not forward datagrams with addresses in this range Internet Group Management Protocol The Internet Group Management Protocol IGMP has the following characteristics e Allows a host to register group memberships with the local queries router to receive any datagrams sent to this router and targeted to a group with a specific IP multicast address e Allows a router to learn the existence of group members on its directly attached networks The router periodically sends a general group query message to each of its local networks Any host that is a member of a multicast group identifies itself by sending a response For instructions on configuring IGMP see Chapter 3 Co
21. Options Function Instructions MIB Object ID Multicast Dynamic TTL Configuration Manager gt Protocols gt IP gt OSPF MOSPE gt Global Disabled Enabled Disabled Controls whether MOSPF uses a dynamic TTL threshold Dynamic TTL means that the TTL threshold may be different for each source group downstream tuple For maximum forwarding performance disable this feature 1 3 6 1 4 1 18 3 5 3 2 3 1 28 Multicast Downstream IGMP Relay Configuration Manager gt Protocols gt IP gt OSPF MOSPE gt Global Disable Enable Disable Specifies whether AS external routes are multicast capable If you enable this feature the advertising ASBR sets the multicast bit in the ASE LSAs for those routes so that they can be used for multicast purposes By default all external routes are multicast capable However if you know that an ASBR s external routes can be used for unicast only you must set this parameter to Disable on the ASBR For example consider two ASBRs ASBR1 and ASBR2 each with a BGP connection to an ISP You know that all multicast traffic should be injected into the MOSPF domain by ASBR2 because ASBR2 has a DVMRP tunnel to the MBone To prevent ASBR1 from injecting multicast routes into the MOSPF domain you set this parameter to Disable 1 3 6 1 4 1 18 3 5 3 2 3 1 30 A 36 117355 D Rev 00 Site Manager Parameters OSPF Interface Parameters Parameter Path Default Options Functi
22. Parameter Path Default Options Function Instructions MIB Object ID UnNumbered Assoc Address Select IP from the Select Protocols window and click on OK None Any valid IP address Specifies an address that IP uses when sourcing a packet RIP uses this address to make decisions about advertising subnets over the unnumbered interface RIP advertises subnets over the unnumbered interface if the subnets have the same mask as the associated address Specify the address of any numbered interface on the router If you are running RIP over the unnumbered interface and if you are using a subnet address as the associated address the local and remote associated addresses should have the same network number If you configure local and remote associated addresses using different network numbers you must use RIP2 mode 1 3 6 1 4 1 18 3 5 3 2 1 4 1 110 Resource Manager Parameters Parameter Path Default Options Function Instructions MIB Object ID Estimated Bandwidth Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 0 to 214 748 364 Specifies the estimated usable bandwidth for this line in bits per second Enter the estimated total bandwidth for this line in bits per second To enable line resource management enter a value greater than 0 For point to point lines you can usually enter the total line speed For an
23. Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Route Delay Configuration Manager gt Protocols gt IP gt RSVP gt Circuit 200 An integer indicating the route delay in hundredths of a second Specifies the approximate period from the time that a route is changed to the time that a resulting message appears on the interface Specify the delay period in hundredths of a second The default 200 hundredths of a second is equal to 2 seconds 1 3 6 1 4 1 18 3 5 16 1 1 6 1 12 Udp Required Configuration Manager gt Protocols gt IP gt RSVP gt Circuit False True False Specifies whether or not UDP encapsulation is used on this interface Select True if manual configuration forces RSVP to use UDP encapsulation on the interface Select False to disable UDP encapsulation If you select False RSVP uses UDP encapsulation only if it determines that a neighbor on this interface also uses UDP encapsulation 1 3 6 1 4 1 18 3 5 16 1 1 6 1 13 A 58 117355 D Rev 00 Site Manager Parameters Multicast Policy Parameters Topic Page DVMRP Unicast Accept Policy Parameters A 59 DVMRP Accept Policy Parameters A 64 DVMRP Announce Policy Parameters A 69 MOSPF Accept DVMRP Route Policy Parameters A 73 IGMP Group Policy Parameters A 76 IGMP Static Forwarding Policy Parameters A 80 IGM
24. message Join message A 2 o R o DR Last hop router SSS LAN B PIM router Rendezvous O E O u O point router Designated Receivers router for LAN IPOLOSA Figure 6 5 How the RP Switches to the Shortest Path Tree 6 16 117355 D Rev 00 Customizing Protocol Independent Multicast How the Last Hop Router Switches to the Shortest Path Tree The following steps which are illustrated in Figure 6 6 describe how the last hop router switches from the shared tree to the shortest path tree when it has downstream group members 1 2 The last hop router receives native multicast packets from the RP If the data rate of the packets sent from the RP exceeds the data threshold configured on the last hop router the last hop router immediately sends a join message toward the DR of the source This message establishes a shortest path tree between the source and the last hop router All intermediate routers along the path to the last hop router add a new entry group in their multicast forwarding tables This entry establishes a delivery path that all intermediate routers can use to forward subsequent messages from the source s
25. RIP and OSPF Services For information about MOSPF see Chapter 5 Customizing OSPF Multicast Extensions Set the MOSPF Multicast Downstream IGMP Relay parameter to Enable For information see Configuring Multicast Capable External Routes on page 5 10 Configure RIP globally on the MOSPF boundary router For information about RIP see Configuring IP ARP RIP and OSPF Services Add MOSPF and IGMP to each interface that connects the router to the multicasting domain Add RIP MOSPF and IGMP to the downstream interface that connects the MOSPF boundary router to the IGMP Relay device Note that MOSPF is configured on the multicast interface only As a unicast device IGMP Relay does not run MOSPF or any other multicast protocol on the upstream interface to the MOSPF boundary router 9 18 117355 D Rev 00 Configuring IGMP Relay Figure 9 6 shows how a Bay Networks MOSPF AS boundary router receives RIP and IGMP advertisements from IGMP Relay and injects them into the OSPF domain d a MOSPF MOSPF MOSPFF gt TT TIIGMP_ IGMP IGMP i ea RIP f gt I RIP aren IGMP LI E E E IGMP O D IGMP advertisement RIP advertisement ASE advertisement Host advertisement IP0068A Figure 9 6 IGMP Relay Routing Protocols The fol
26. Shared tree path Last hop router PIM router Rendezvous point router Designated router for LAN IP00092A Figure 6 2 Shared Tree and Shortest Path Tree 117355 D Rev 00 6 9 Configuring IP Multicasting and Multimedia Services How a Receiver Joins a Multicast Group The following steps which are illustrated in Figure 6 3 describe how a receiver joins a multicast group 1 A receiver sends an IGMP host membership message to the DR normally the last hop router for that group on its local interface The IGMP message contains the address of the multicast group that the receiver wants to join When the DR receives the IGMP message it examines the group address and checks the associated group s RP list to determine the RP for the group After determining the RP for the group the DR creates a route entry in the multicast forwarding table for the group pair group and sends a unicast PIM join message directly to the RP The group notation indicates any source group pair All intermediate routers along the path to the RP create the same entry group in their multicast forwarding tables This entry enables the intermediate routers to forward future multicast traffic addressed to the group pair downstream toward the DR that originated the PIM join message The RP receives the PIM join message and updates its cache If the RP knows the requested group it forwards the multicast packets downstre
27. Specifies a list of inbound interfaces This policy applies to advertisements that arrive on the interfaces on this list To apply the policy to advertisements that arrive on any interface use the default null 1 3 6 1 4 1 18 3 5 3 2 6 17 1 10 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Route Type Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Best route Best route OSPF Both Specifies the type of route that DVMRP selects from the IP unicast routing table Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 17 1 11 Metric Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies 1 1 to 31 Specifies the cost of the route that DVMRP injects into the DVMRP routing table Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 17 1 12 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services DVMRP Accept Policy Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Enabled Enabled Disable
28. Starting DVMRP You can start DVMRP using either the BCC or Site Manager When you configure DVMRP on an IP interface DVMRP is also configured globally on the router If you follow the instructions provided below DVMRP will be running on the router with default values for all global and interface parameters You customize DVMRP by modifying DVMRP parameters For information and instructions see Chapter 4 Customizing DVMRP Using the BCC To start DVMRP on an interface with default values you must first configure IGMP Navigate to the IP or IGMP interface prompt for example box ethernet 2 2 ip 1 2 3 4 255 255 255 0 igmp and enter dvmrp For example the following command sequence configures IGMP and DVMRP on IP interface 1 2 3 4 255 255 255 0 ip 1 2 3 4 255 255 255 0 igmp igmp 1 2 3 4 dvmrp dvmrp 1 2 3 4 If you try to configure DVMRP without first configuring IGMP you will see the following message Configuration of Igmp is required Using Site Manager To start DVMRP on the router 1 Configure a circuit on a slot and connector 2 Configure an IP interface on the circuit 3 Add DVMRP to the IP interface For information and instructions on using Site Manager to configure a circuit on a slot and connector see Configuring WAN Line Services or Configuring Ethernet FDDI and Token Ring Services 2 4 117355 D Rev 00 Starting Multicasting and Multimedia Services When you have successfully c
29. choose Protocols 2 Choose IP The Protocols menu opens The IP menu opens 3 Choose OSPF MOSPF The OSPF menu opens 4 Choose Global The Edit OSPF Global Parameters window opens Set the Multicast Extensions parameter Click on Help or see the parameter description on page A 35 Click on OK You return to the Configuration Manager window 5 4 117355 D Rev 00 Customizing OSPF Multicast Extensions After you configure OSPF with multicast extensions you can set multicast global parameters as described under the following topics Topic Page Specifying a Forwarding Timeout Value 5 5 Specifying a Maximum Number of Queued Packets 5 6 Enabling Dynamic TTL Bee Note MOSPF will not forward datagrams out an interface until multicast forwarding is enabled on the interface For instructions see Configuring Multicast Forwarding on an OSPF Interface on page 5 9 Specifying a Forwarding Timeout Value To specify a value for timing out MOSPF entries in the forwarding table complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose OSPF MOSPF The OSPF menu opens 4 Choose Global The Edit OSPF Global Parameters window opens 5 Set the Multicast Timeout Value parame
30. e Establishes a shortest path tree to create a data path between sources and receivers For instructions on customizing PIM see Chapter 6 Customizing Protocol Independent Multicast Resource Reservation Protocol The Resource Reservation Protocol RSVP allows host systems in an IP network to reserve resources on RSVP capable routers for unicast or multicast dataflows A dataflow is a transmission of packets from a source to one or more destinations requiring a certain QoS For instructions on configuring RSVP see Chapter 7 Configuring RSVP 117355 D Rev 00 Multicasting and Multimedia Overview Bay Networks Resource Manager The Bay Networks Resource Manager lets you define a certain percentage of a line s bandwidth as reservable Applications that require a guaranteed quality of service can negotiate for the reservable bandwidth When the router honors a reservation request the Resource Manager allocates bandwidth from the reservable bandwidth reducing the bandwidth available for other requests For more information about reserving bandwidth using the Bay Networks Resource Manager see Chapter 8 Reserving Line Resources IGMP Relay A router configured as an IGMP Relay IGMP R device provides the following services for an IP multicast router e Solicits multicast group membership information by sending IGMP host membership queries to hosts on its attached local networks e Receives host membersh
31. gt DVMRP gt Unicast Accept Policies 0 0 to 2147483647 Specifies a metric that DVMRP uses to compare this policy to other policies that match the route DVMRP uses the precedence value to choose among multiple matches In ranking policies according to precedence keep in mind that the route with the highest value is the preferred route In case of a tie the route with the larger index number wins 1 3 6 1 4 1 18 3 5 3 2 6 17 1 8 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Inject Aggregate Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Null An IP address and mask Specifies an IP network that DVMRP injects into the DVMRP routing table in place of the advertised networks This parameter has meaning only if the action is Accept Enter an IP address and mask To inject the learned network use the default null Use this parameter to inject an aggregate address for a range of learned networks This allows insertion of an aggregate or default network along with the actual network 1 3 6 1 4 1 18 3 5 3 2 6 17 1 9 Received on Interfaces Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Null A list of IP interfaces
32. the protocols loaded but not actively processing or sending information If the secondary device determines that the primary device is inactive the secondary device transitions to the active state assuming all functions including the IGMP Relay function The original primary device transitions to the secondary state IP multicast router 7 4 7 _ Rivne a Backup IGMP R Primary IGMP R Og E oOo IP0070A Figure 9 9 IGMP Relay with Router Redundancy For information see Configuring Interface and Router Redundancy 117355 D Rev 00 9 23 Appendix A Site Manager Parameters This appendix contains the Site Manager parameter descriptions for multicast and multimedia services You can display the same information using Site Manager online Help This appendix contains the following information Topic Page DVMRP Parameters A 2 IGMP Parameters A 17 IP Configuration Parameters A 2 Resource Manager Parameters A 28 OSPF Parameters for Multicast Extensions A 35 PIM Parameters A 37 RSVP Parameters A 54 Multicast Policy Parameters A 59 For each parameter this appendix provides the following information Parameter name Configuration Manag
33. time it deletes the forwarding cache entry associated with this interface Determine the timeout period that you require and specify a value The highest allowable value 65 535 seconds is equal to 18 hours 12 minutes and 15 seconds 1 3 6 1 4 1 18 3 5 3 14 1 31 Register Suppression Timeout Configuration Manager gt Protocols gt IP gt PIM gt Global 60 5 to 65 535 seconds Specifies the time period in seconds during which the first hop router DR disables the sending of register messages to the RP after receiving a register stop message from the RP The RP sends a register stop message when it receives unencapsulated data packets from the DR and there are no downstream routers receivers to forward these packets to Determine the timer interval that you require and specify a value The highest allowable value 65 535 seconds is equal to 18 hours 12 minutes and 15 seconds 1 3 6 1 4 1 18 3 5 3 14 1 33 A 46 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Probe Time Configuration Manager gt Protocols gt IP gt PIM gt Global 5 0 to 65 535 seconds Specifies the interval in seconds between the time that the first hop router sends a probe packet null register packet with no user data to the RP router and the expiration of the re
34. 1 18 3 5 3 12 2 1 6 A 8 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Threshold Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit 1 1 to 254 Specifies in hops a TTL value for the interface This value is the minimum IP TTL required for a multicast datagram to be forwarded out this interface Use this parameter to control the scope of the datagrams If the IP TTL is less than the threshold value you specify the router drops the datagram 1 3 6 1 4 1 18 3 5 3 12 2 1 7 Forward Cache Size Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit 32 32 to 512 Specifies the maximum number of entries allowed in the forwarding table associated with this interface When configuring a cache size you must also keep in mind the TTL value for entries If you specify a large cache size a larger TTL value is recommended For a smaller cache a shorter TTL for cache entries is recommended 1 3 6 1 4 1 18 3 5 3 12 2 1 14 Forward Cache TTL Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit 7200 300 to 86 400 seconds Specifies in seconds the TTL for an entry in the forwarding table Enter a value from 300 seconds 5 minutes
35. 1 4 1 18 3 5 3 13 1 2 Estimated Groups Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global 20 5 to 65 535 Specifies the estimated number of multicast groups that will be simultaneously active for this router This estimate allows the router to use memory efficiently Exceeding this size during router operation will not cause an error but may cause the router to consume more memory than required The following groups are not maintained by IGMP you do not need to include them in the count 224 0 0 1 224 0 0 4 224 0 0 5 and 224 0 0 6 Determine the approximate number of groups and enter the value 1 3 6 1 4 1 18 3 5 3 13 1 4 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Version Threshold Time Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global 540 1 to 65 535 seconds Specifies the number of seconds that can elapse after IGMP detects a Version 1 query before IGMP tries to become the designated querier Enter a value from 1 through 65 535 seconds 18 hours 12 minutes and 15 seconds The value that you specify should be greater than the Version 1 query rate of all IGMP speakers on all networks directly
36. 13 rsvp command B 5 RSVP TTL parameter RSVP circuit 7 11 A 57 Rule Precedence parameter DVMRP accept policies 4 77 A 66 announce policies 4 82 A 70 unicast accept policies 4 72 A 61 IGMP group policies 3 32 A 78 static forwarding policies 3 37 A 81 MOSPF accept DVMRP route policies 5 11 A 74 S show commands 1 13 Soloist Slots parameter RSVP global 7 5 A 55 source network DVMRP defined 4 4 117355 D Rev 00 Sources parameter IGMP group policies 3 32 A 77 IGMP static forwarding policies 3 37 A 82 starting DVMRP 2 4 IGMP 2 2 MOSPF 2 6 PIM 2 8 RSVP 2 10 Static Forward Cache Lifetime parameter IGMP interface 3 28 A 25 Subnet Mask parameter IP configuration A 27 Supply Default Route parameter DVMRP circuit 4 45 A 10 support Bay Networks xxiv T technical publications xxiii technical support xxiv text conventions xx Threshold parameter DVMRP circuit 4 38 A 9 DVMRP tunnel 4 58 A 13 Threshold Sample Interval parameter PIM global 6 23 A 40 threshold values DVMRP function 4 37 timers designated router timeout IGMP 3 22 garbage timeout DVMRP 4 16 group membership timeout IGMP 3 21 leaf DVMRP 4 19 multicast timeout MOSPF 5 5 neighbor report DVMRP 4 17 probe PIM 6 28 refresh interval RSVP 7 8 register suppression PIM 6 27 route expiration DVMRP 4 13 unconfirmed route timeout DVMRP 4 15 Trace Log Filter parameter RSVP glob
37. 2 Choose IP The IP menu opens 3 Choose RSVP 4 Choose Global The RSVP menu opens The RSVP Base Group Record window opens Set the Enable parameter Click on Help or see the parameter description on page A 54 Click on Save You return to the Configuration Manager window 7 4 117355 D Rev 00 Choosing a Slot Configuring RSVP By default RSVP runs on every slot where it is configured To specify the slot or slots on which you want RSVP to run complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Global The RSVP Base Group Record window opens 5 Set the Soloist Slots parameter Click on Help or see the parameter description on page A 55 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Logging RSVP Messages By default the router does not log RSVP messages informational debug and trace To enable the logging of informational debug and trace messages for RSVP components complete the following tasks Caution Enabling message logging increases the chance of losing information because of lack of memory Site Manager Procedure
38. 30 A 84 IGMP static group 3 29 A 21 Groups parameter IGMP group policies 3 32 A 78 IGMP static forwarding policies 3 37 A 81 groups multicast host 1 2 H Hello Interval parameter PIM interface 6 32 A 51 host groups membership reports IGMP 3 2 types 1 2 IGMP Internet Group Management Protocol boundary group configuring 3 30 disabling 3 31 enabling 3 31 cache entry for mtrace lifetime of 3 26 deleting from an interface 3 39 designated router timeout interval 3 22 disabling globally 3 5 on an interface 3 16 enabling globally 3 5 on an interface 3 16 function of 3 2 group membership timeout interval 3 21 Index 4 IGMP Internet Group Management Protocol continued group policies configuring 3 32 disabling 3 33 enabling 3 33 groups estimating number of 3 6 host leave messages 3 3 host membership queries 3 2 reports 3 3 host response time maximum 3 24 lifetime of a cache entry for mtrace 3 26 logging messages 3 10 messages host leave 3 3 logging event 3 10 mtrace lifetime of a cache entry for 3 26 policies group 3 32 static forwarding 3 33 query rate 3 19 starting 2 2 static forwarding policies configuring 3 33 disabling 3 38 enabling 3 38 static host entry 3 28 timeout interval for designated router 3 22 for group membership 3 21 version threshold time 3 8 IGMP Internet Group Management Protocol Relay backup configurations 9 22 co
39. 35 Specifying the Local DR Priority 6 36 Disabling and Reenabling PIM on an Interface By default PIM is enabled on an interface To disable and reenable PIM on an interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens 5 Set the Enable parameter Click on Help or see the parameter description on page A 51 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 31 Configuring IP Multicasting and Multimedia Services Setting the Hello Interval The Hello interval specifies how often the local router sends PIM Hello messages on this PIM interface to neighboring routers in the PIM domain PIM routers periodically send Hello messages so that PIM neighbors can discover each other Hello messages are multicast using address 224 0 0 13 all PIM routers group and are sent on all communication links By default the local router sends Hello messages on this PIM interface every 30 seconds You can set the value from 1 through 2 147 483 647 seconds Bay Networks recommends a higher value for slower speed serial lines To specify the Hello interval complete the following tasks Site Manager Pr
40. 4 4 117355 D Rev 00 Customizing DVMRP How DVMRP Chooses a Route Each DVMRP interface is configured with a metric that indicates the cost of the hop A router that receives multiple route reports for the same multicasting source network e Compares the cost specified in each based on the metric field e Stores information from the report with the lowest cost in its routing table A route metric is the sum of all the interface hop metrics from a given route source to a given router In Figure 4 1 on page 4 3 for example router D receives two reports for the network connected to multicast router A one from router B and one from router C Using the metrics contained in the route reports router D determines that the cost of the tunneled route is greater than the cost of the route that uses direct physical connections Router D discards the route received from router C and stores the route received from router B Router D then declares router B to be the next hop neighbor and interface d1 to be the next hop interface After a next hop neighbor has been declared for a route the route updates received from that neighbor for that route take precedence until either the route times out or until another router advertises a better metric for that route 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Routing Table Table 4 1 shows the principal items in a DVMRP routing table entry Table 4 1 DVMRP R
41. Bay Networks xxiii related xxiii Q quality of service QoS 8 2 Query Suppression parameter IGMP interface 3 18 A 25 queue limit policing algorithm line resources 8 10 queuing priority limits line resources 8 11 R Received on Interfaces parameter DVMRP accept policies 4 77 A 67 DVMRP unicast accept policies 4 72 A 62 Received on Tunnels parameter DVMRP accept policies 4 77 A 68 Receivers parameter IGMP group policies 3 32 A 79 Receivers Circuits parameter IGMP group policies 3 32 A 79 Refresh Blockade Multiple parameter RSVP circuit 7 10 A 56 Refresh Interval parameter RSVP circuit 7 8 A 57 Refresh Multiple parameter RSVP circuit 7 9 A 57 register messages PIM 6 7 Register Suppression Timer parameter PIM global 6 27 A 46 register stop messages PIM 6 7 Relay Circuit Type parameter IGMP Relay interface 9 15 A 26 Relay Forwarding Timeout parameter IGMP Relay global 9 11 A 20 Relay parameter IGMP Relay global 9 10 A 19 Index 8 Relay Report Interval parameter IGMP Relay interface 9 17 A 26 Relay Upstream Forwarding parameter IGMP Relay global 9 13 A 20 Remote IP Address parameter DVMRP tunnel 4 52 A 16 Rendezvous Point RP Threshold parameter PIM global 6 22 A 39 Report Depend Probe parameter DVMRP circuit 4 48 A 11 DVMRP tunnel 4 67 A 15 Reservable Bandwidth parameter line resources 2 11 8 5 A 29 Reser
42. DR continues to send encapsulated multicast packets to the RP until it receives a register stop message or a prune message 117355 D Rev 00 6 13 Configuring IP Multicasting and Multimedia Services Figure 6 4 shows how a source sends multicast packets to a group Source S Ta LAN A 4 First hop router Register packets Native E o 3 multicast Peera ackets egister stop R R p J D R Join 2 message 5 RP E 3 E R R Last hop router LAN B PIM router Rendezvous EI ET ay m E O point router Designated Receivers router for LAN IP0105A Figure 6 4 How a Source Sends Multicast Packets to a Group 6 14 117355 D Rev 00 Customizing Protocol Independent Multicast How the RP Switches to the Shortest Path Tree The following steps which are illustrated in Figure 6 5 describe how the RP switches from the shared tree to the shortest path tree when it has downstream group members 1 A source directly attached to a LAN sends a multicast packet to a group The DR first hop router encapsulates each packet in a register message and sends a unicast message directly to the RP
43. DR to the last hop router on the shortest path tree After the source s DR receives the join message from the last hop router it sends native multicast packets toward the last hop router on the shortest path tree The last hop router now receives multicast packets from the RP on the shared tree and from the source s DR on the shortest path tree To avoid receiving duplicate packets the last hop router sends a prune message toward the RP indicating that it wants to receive packets on the shortest path tree only For information about configuring a last hop router to switch to the SPT see Modifying the Last Hop Threshold on page 6 20 117355 D Rev 00 6 17 Configuring IP Multicasting and Multimedia Services Figure 6 6 shows how the last hop router switches to the shortest path tree Source ta LAN A ta Shared tree z Path a First hop router G s e Register aq if packets oO a I R i i Native 1 multicast Join packets J i message i RP i i i Prune i message Native i multicast packets forwarded 1 to group members i Last hop router Shared tree path Shortest tree path PIM router Rendezvous point rou
44. DVMRP neighbor By default DVMRP sets the leaf timer to 200 seconds 3 minutes 20 seconds You can use the BCC or Site Manager to specify a value from 25 through 4000 seconds 1 hour 6 minutes and 40 seconds Note DVMRP timers must be the same throughout the network Using the BCC To reset the leaf timer navigate to the global DVMRP prompt for example box ip dvmrp and enter leaf timeout lt seconds gt seconds is an integer from 25 through 4000 indicating the number of seconds For example the following command sets the leaf timer to 250 seconds 4 minutes 10 seconds dvmrp leaf timeout 250 dvmrp 117355 D Rev 00 4 19 Configuring IP Multicasting and Multimedia Services Using Site Manager To set the leaf timer complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Leaf Timeout parameter Click on Help or see the parameter description on page A 3 6 Click on Save You return to the Configuration Manager window 4 20 117355 D Rev 00 Customizing DVMRP Specifying a Probe Interval The probe interval determines how often DVMRP sends a probe on interfaces from which no neighbors have been he
45. Disabling UDP Encapsulation sssini 7 13 Be ile cag A teen AA T ee enone tent A eters EET men TAE A A EE 7 14 Chapter 8 Reserving Line Resources About Line Resource Reservation cc ccccccecccceeseeeeeceeceeeceaeeceaeceaeecaaeesaeeseaeeseeseneees 8 2 Resource Manager Sere korana PET med PT EEA EE ae SUP PONE OCIA E A nS 8 3 How the Resource Manager Works SALA ES oP assis suas ec daiasad ones ta oon etaldiarSaerabsionnerts 8 3 Setting the Estimated Bandwidth sccsctsscelscelicdsgeeteencen ti eaa a a ia 8 4 Setting the Reservable Bandwidth sig csseecsssiciidestisadenlsepatiedad aeaa 8 5 Specifying the Traffic Queuing Algorithm P ETT mi merece 1 8 6 Speciiying the LAM Policing Algorithmi sssrinin 8 7 Seto ihe Bandwidth METSAN sersan aai aSa 8 8 Setting the Inflate Reservations Percentage ET rtan ee Seiten E Specifying the Unreserved Policing Algorithm esessssessssssssrssssssssnsssrsssnssssnsssnnssnnsssnses 8 10 Specifying the Unreserved Queue Length cccceeceeeeeeeneeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeens 8 11 Specifying the Multiline Select Algorithmi cicccscccccaseescietaneasccsdoueeiecntasee ceitenesdeniriennnines 8 12 Setting the Multiline Threshold Bandwidth seesesssssssesssesssrsssrrssrrrssrressrrersrensennnen 813 Setting the Reservation Latency a A iooi Aari 8 14 Setting the Maximum Reservable Bandwidth it a Galeliow E E T 8 15 Setting the Maximum Buffer Space for a D
46. Ethernet line you must estimate a value because shared media lines may not have all of the bandwidth available You can base the estimate on line statistics the number of connected workstations or other site specific information 1 3 6 1 4 1 18 3 5 16 2 1 3 1 3 A 28 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Reservable Bandwidth Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 0 to 214 748 364 Specifies the reservable bandwidth for this line in bits per second To enable reservable resources enter the portion of this line s bandwidth that you want to make available for RS VP requests for guaranteed service The value must be greater than 0 and less than the value of the Estimated Bandwidth parameter Do not make all available bandwidth reservable leave at least 15 percent for network management and routing protocols 1 3 6 1 4 1 18 3 5 16 2 1 3 1 4 Traffic Queuing Algorithm Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources Priority None Priority Specifies the queuing algorithm for all reserved traffic Select None to use best effort scheduling Use best effort sch
47. Global Configuration window opens 5 Set the Enable parameter Click on Help or see the parameter description on A 37 6 Click on OK You return to the Configuration Manager window Modifying the Last Hop Threshold By default a last hop router switches from the shared tree to a shortest path tree when the source sends data packets at a rate that exceeds 2048 bytes per second You can modify the last hop threshold as follows e Change the data threshold rate bytes per second e Specify a value from 0 through 64 for the last hop data threshold to force the last hop router to immediately switch from the shared tree to the SPT upon receiving the first packet from the source e Disable the last hop threshold to ensure that PIM routers continue to receive multicast traffic over the shared tree For more information about switching from the shared tree to the SPT see How the Last Hop Router Switches to the Shortest Path Tree on page 6 17 6 20 117355 D Rev 00 Customizing Protocol Independent Multicast To modify the last hop threshold complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the following parameters Last Ho
48. IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens 5 Set the Refresh Blockade Multiple parameter Click on Help or see the parameter description on page A 56 6 Click on Apply and then click on Done You return to the Configuration Manager window 7 10 117355 D Rev 00 Setting the TTL Override Configuring RSVP By default RSVP uses the IP TTL value To override this value complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP 3 Choose RSVP The IP menu opens The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens Set the RSVP TTL parameter Click on Help or see the parameter description on page A 57 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Setting the Route Delay Value The route delay value specifies the approximate period that elapses between the time that a route is changed and the time that a resulting message appears on the interface The route delay is expressed in hundredths of a second By default the route delay is 200 hundredths of a second 2 seconds To specify a different delay comp
49. MIB Object ID Received on Tunnels Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Null A list of tunnel specifications Specifies one or more DVMRP tunnels If a tunnel interface appears in this list this policy applies to DVMRP advertisements sent via that tunnel For each tunnel enter an 8 octet specification The first four octets are the local IP address the second four octets are the remote IP address If you want the policy to apply to any tunnel use the default null If you want the policy to apply to no tunnels enter a tunnel specification consisting of all Fs 1 3 6 1 4 1 18 3 5 3 2 6 15 1 13 Metric Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies 1 1 to 31 Specifies the cost of the route that DVMRP injects into the DVMRP routing table Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 15 1 14 A 68 117355 D Rev 00 Site Manager Parameters DVMRP Announce Policy Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following descriptions to set DVMRP announce policies Enable Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies En
50. Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Admin Scope The IP IGMP Admin Scope window opens 5 Click on Add The IGMP Admin Scope window opens 6 Set the following parameters Group Address Prefix Length e Circuit List Tunnel List Click on Help or see the parameter descriptions beginning on page A 84 7 Click on OK You return to the IP IGMP Admin Scope window 8 Click on Done You return to the Configuration Manager window 117355 D Rev 00 Configuring and Customizing IGMP Disabling and Reenabling an IGMP Boundary Group When you configure an IGMP boundary group by default the boundary group is enabled To disable or reenable an IGMP boundary group complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Admin Scope The IP IGMP Admin Scope window opens Select the name of the IGMP boundary group that you want to disable or reenable Your selection is highlighted Set the Enable parameter Click on Help or see the parameter description on page A 84 Click on Done You return to the Configuration
51. Resource Manager allocates bandwidth from the reservable bandwidth reducing the bandwidth available for other requests 8 2 117355 D Rev 00 Reserving Line Resources Supported Media You must enable the Resource Manager on 10 Mb s and 100 Mb s Ethernet FDDI MCT1 HSSI and synchronous interfaces that are configured with RSVP The Resource Manager supports the following synchronous interface encapsulation methods e Point to Point Protocol PPP e Bay Networks Standard e FDDI e 100 Mb s Ethernet Note You cannot use line resource management on a line configured for PPP multilink How the Resource Manager Works with RSVP The exchange between RSVP and the Resource Manager consists of the following steps 1 The router receives an RSVP reserve message The reserve message includes a flow specification flowspec that indicates the resources needed to meet the Qos 2 RSVP passes the flowspec to the Resource Manager 3 The Resource Manager compares the requested resources with available reservable bandwidth The Resource Manager determines reservable bandwidth from configured values described later in this chapter It also accounts for any active reserved flows 4 The Resource Manager either reserves the necessary services or refuses service 117355 D Rev 00 8 3 Configuring IP Multicasting and Multimedia Services Setting the Estimated Bandwidth To activate resource reservation select a line and enter
52. Rev 00 B 5 Configuring IP Multicasting and Multimedia Services Table B 4 Options for rsvp Subcommands Option d lt destination_IP gt lt protocol_ID gt lt destination_port gt Effect Retrieves RSVP data for the session you specify Applicable Subcommands session phop oi path resv p lt previous_hop gt Retrieves only sessions with the specified previous hop phop path resv f lt source_IP gt lt source _port gt Retrieves only oi path or resv information for oi path resv sessions with a source address of source_ P and optionally a source port of source_port n lt next_hop gt Retrieves only reservation request information resv with the specified next hop For example the following rsvp command specifies the RSVP previous hops rsvp phop RSVP Previous Hops Session IP dest protocol dest port Previous Hop 229e ke beL 17 5000 199145 220 Tel eL 17 5000 200i le leZ T2 22ga ulek 17 5000 201 ebe Tte2 2 3 previous hops matched 117355 D Rev 00 A accept DVMRP route policies See MOSPF accept policies DVMRP 4 74 DVMRP unicast 4 69 MOSPF accept DVMRP route 5 11 acronyms xxi Action parameter DVMRP accept policies 4 77 A 65 announce policies 4 82 A 70 unicast accept policies 4 72 A 60 IGMP group policies 3 32 A 77 MOSPF accept DVMRP route policies 5 11 A 73 addresses multicast 1 3 Advertise Aggregate paramet
53. Routers You can configure a set of routers in a PIM domain as candidate RPs C RPs C RPs periodically send unicast advertisement messages to the bootstrap router BSR for that domain These messages contain the configured Class D group address ranges that the C RP is responsible for You can configure a PIM router to serve as both a C RP and a C BSR for one PIM domain This is the PIM implementation most commonly used 6 4 117355 D Rev 00 Customizing Protocol Independent Multicast For information about customizing C RP configuration parameters see Modifying the Candidate RP Configuration on page 6 26 Bootstrap Router The bootstrap router BSR receives RP advertisement messages from the C RPs and adds the RP with its group prefix to the RP set The BSR periodically sends the RP set in bootstrap messages to all routers in the PIM domain The BSR ensures that all PIM routers learn which RP to send PIM join prune and register packets to Only one BSR exists for each PIM domain For information about configuring a router as a BSR see Starting PIM on page 2 7 Candidate Bootstrap Routers Within a PIM domain you can configure a small set of routers as candidate BSRs PIM elects the C BSR with the highest configured priority as the BSR for the domain If two C BSRs have equal priority then PIM elects the C BSR with the higher IP address as the BSR for the domain When you add a new C BSR with a higher priority to
54. TTL high enough to reach the closest group member By default this feature is disabled To enable and disable this feature as required complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose OSPF MOSPF The OSPF menu opens 4 Choose Global The Edit OSPF Global Parameters window opens 5 Set the Multicast Dynamic TTL parameter Click on Help or see the parameter description on page A 36 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 5 7 Configuring IP Multicasting and Multimedia Services Enabling Multicast Migration Between MOSPF and Nonmulticast Interfaces When you globally configure MOSPF all interfaces running OSPF can receive multicast packets Remember that IGMP must be configured for all MOSPF interfaces Forwarding Multicast Traffic from a Nonmulticast Interface to an MOSPF Interface To forward multicast packets from a nonmulticast IGMP static configured interface to an MOSPF configured interface Configure the multicast router as an autonomous system boundary router ASBR Set the IGMP static forwarding policy for the MOSPF interface with the forwarding mode set to static to dynamic Configure the inbound interfaces using the In Circuits parameter in the IGMP static forwarding
55. The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Report Depend Probe parameter Click on Help or see the parameter description on page A 15 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 67 Configuring IP Multicasting and Multimedia Services Specifying the Lifetime of a Prune Message By default a prune message that DVMRP sends to a neighbor on this tunnel has a lifetime of 7200 seconds 2 hours You can use the BCC or Site Manager to specify a lifetime value from 0 through 86 400 seconds 24 hours Using the BCC To reset the lifetime of a prune message navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter prune lifetime lt seconds gt seconds is the lifetime of the prune message in seconds For example the following command sets the lifetime value to 5000 seconds 1 hour 23 minutes and 20 seconds for prune messages that DVMRP sends on tunnel 2 2 2 2 2 2 2 4 dvmrp 2 2 2 2 2 2 2 4 prune lifetime 5000 dvmrp 2 2 2 2 2 2 2 4 Using Site Manager To specify the lifetime of a prune message complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu o
56. The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Supply Default Route parameter Click on Help or see the parameter description on page A 10 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 45 Configuring IP Multicasting and Multimedia Services Listening for a Default Route By default DVMRP listens for a default route on this interface You can use the BCC or Site Manager to enable and disable this feature as required Using the BCC To prevent DVMRP from listening for a default route or to reenable such listening navigate toa DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter default listen lt state gt state is one of the following enabled default disabled For example the following command causes DVMRP to stop listening for a default route over IP interface 2 3 4 5 dvmrp 2 3 4 5 default listen disabled dvmrp 2 3 4 5 Using Site Manager To listen for a default route complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit
57. To configure message logging complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay 4 Choose Global The IGMP menu opens The IGMP Global Configuration window opens Set the Debug parameter Click on Help or see the parameter description on page A 19 Click on Save You return to the Configuration Manager window 117355 D Rev 00 3 11 Configuring IP Multicasting and Multimedia Services Enabling Join Acknowledgments By default IGMP does not respond with an acknowledgment to join requests from host groups Using Site Manager you can configure IGMP globally to respond to a join request by sending an IGMP query to the group Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens Set the Join Ack Enable parameter Click on Help or see the parameter description on page A 18 Click on Save You return to the Configuration Manager window Note This is a proprietary Bay Networks function It is not part of sta
58. a range tag means match any network number that falls in the range indicated by the number and mask To match any address accept the default null 1 3 6 1 4 1 18 3 5 3 2 6 17 1 5 Action Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Accept Accept Ignore Specifies the action that DVMRP performs on a route that matches this policy Select Accept to import the matching route from the IP unicast routing table to the DVMRP routing table If you do not want to import the matching route select Ignore 1 3 6 1 4 1 18 3 5 3 2 6 17 1 6 A 60 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Route Preference Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies 0 0 to 16 Specifies a value that DVMRP uses to compare the route for injection to an existing route in the DVMRP routing table This parameter has meaning only if the action is Accept If the injected unicast route is preferred set the preference to a higher value than the preference value of the existing route A route learned from a DVMRP network always has a preference of 1 1 3 6 1 4 1 18 3 5 3 2 6 17 1 7 Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters
59. administratively assigned IP multicast group address The address not the membership is permanent and defines the group A permanent host group can consist of zero or more members e A transient host group exists only as long as it has members that need its services IP addresses in the multicast range that are not reserved for permanent groups are available for dynamic assignment to transient host groups An IP multicast host group can consist of zero or more members and places no restrictions on its membership Host members can reside anywhere they can join and leave the group at any time and they can be members of more than one group at the same time To receive a multicast message addressed to a multicast host group a host must be a member of the group and must reside on a network where that group is registered with a local multicast router However any host system on any IP network can send a message to a multicast group using the group s IP multicast address a host does not need to be a member of a group to send a multicast message to its members In general hosts that are members of the same group reside on different networks However a range of multicast addresses 224 0 0 x is reserved for groups that are locally scoped All message traffic for these hosts remains on the local network Hosts that belong to a group in this address range and that reside in different networks will not receive each other s message traffic
60. and targeted to a group with a specific IP multicast address Bay Networks routers support IGMP Version 2 A router communicates with the hosts on a local network by sending IGMP queries Hosts respond by issuing IGMP reports This section covers the following topics Topic Page IGMP Queries 3 2 IGMP Host Reports 23 Host Leave Messages 3 3 IGMP Queries A router running IGMP periodically sends host membership queries to its attached local networks Routers that conform to RFC 1112 generate Version 1 queries Bay Networks routers configured with IGMP generate Version 2 queries If multiple IGMP routers exist on the network Bay Networks routers designate one router to send host member queries using the following rules e Choose a router that generates Version 1 queries over a router that generates Version 2 queries e Choose the router with the lowest IP address 3 2 117355 D Rev 00 Configuring and Customizing IGMP IGMP Host Reports A host that receives a membership query from a local router can respond with a host membership report for each joined multicast group A host that receives a query delays its reply by a random interval and listens for a reply from any other host in the same host group For example consider a network that includes two host members of the same multicast group host A and host B The router sends out a host membership query on the local network Both host A and
61. by clicking on You return to the Configuration Manager Save window PIM is now running on the router with default values for all global and interface parameters You can customize PIM by modifying PIM parameters For information and instructions see Chapter 6 Customizing Protocol Independent Multicast 117355 D Rev 00 2 9 Configuring IP Multicasting and Multimedia Services Starting RSVP To start RSVP on the router using Site Manager 1 Configure a circuit on a slot and connector 2 Configure an IP interface on the circuit 3 Add RSVP to the IP interface For information and instructions on using Site Manager to configure a circuit on a slot and connector see Configuring WAN Line Services or Configuring Ethernet FDDI and Token Ring Services When you have successfully configured the circuit the Select Protocols window opens Proceed as follows Site Manager Procedure You do this System responds 1 Inthe Select Protocols window choose the following protocols gt IP RSVP 2 Click on OK The IP Configuration window opens 3 Set the following parameters IP Address Subnet Mask Transmit Beast Addr UnNumbered Assoc Address Click on Help or see the parameter descriptions beginning on page A 26 4 Click on OK The Initial RSVP Global Configuration window opens 5 Click on Save Site Manager asks you whether you want to create li
62. default 6 23 last hop router 6 3 last hop threshold configuration 6 20 local DR priority 6 36 logging messages 6 30 117355 D Rev 00 PIM Protocol Independent Multicast continued messages assert 6 7 join prune 6 7 logging event 6 30 neighbor Hello ID 6 24 register 6 7 neighbor Hello ID messages 6 24 network components 6 3 probe timer 6 28 receiver joining multicast group 6 10 leaving multicast group 6 12 register suppression timer 6 27 rendezvous point threshold 6 21 rendezvous point defined 6 4 router compatibility Cisco 6 29 shared tree defined 6 8 shortest path tree defined 6 8 last hop router 6 17 RP router 6 15 starting 2 8 threshold sample interval 6 22 timeout interval cache 6 33 timers probe 6 28 register suppression 6 27 policies DVMRP accept 4 74 announce 4 79 unicast accept 4 69 IGMP group 3 32 static forwarding 3 33 MOSPF accept DVMRP route policies 5 11 Policing Algorithm parameter line resources 8 7 A 30 Prefix Length parameter IGMP boundary group 3 30 A 84 IGMP static host 3 29 A 21 priority queuing limits line resources 8 11 A 32 Probe Time parameter PIM global 6 28 A 47 product support xxiv Protocol Independent Multicast See PIM Index 7 Prune Life Time parameter DVMRP circuit 4 49 A 11 tunnel 4 68 A 15 Pruning Enable parameter DVMRP global 4 12 A 7 pruning the shortest path tree DVMRP 4 7 publications
63. field as follows 0x00000001 Bootstrap procedure 0x00000002 Hello procedure 0x00000004 Join prune send procedure 0x00000008 Registration procedure 0x00000010 Maintaining PIM route table 0x00000020 Assert procedure 0x00000040 Data forwarding tree switching 0x00000080 PIM main gate processing 0x00000100 PIM Cct gate general processing 0x00000200 PIM route change processing 0x00000400 PIM G processing 0x00000800 PIM pte oif timers 0x00001000 PIM MTM signals messages 0x00002000 PIM PIM messages 0x00004000 PIM protocol messages first data 0x00008000 Join prune received 0x00010000 PIM utilities including timers 0x00020000 PIM debug option for ip pim_fwd MIB Object ID 1 3 6 1 4 1 18 3 5 3 14 1 5 117355 D Rev 00 A 49 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Trace Configuration Manager gt Protocols gt IP gt PIM gt Global 0 0 PIM modules for which you want to log PIM trace messages Enables or disables the logging of PIM trace messages on the PIM router To disable logging of PIM trace messages accept the default value 0 To enable logging of these messages click on Values and select the PIM modules for which you want to log trace messages The modules that you select are represented as bits values in the parameter field as follows 0x00000001 Bootstrap pr
64. from source to destination establishes the path for the proposed dataflow Sender Receiver a Receiver Peron Receiver Receiver IP00057A Figure 7 1 RSVP Path Message 7 2 117355 D Rev 00 Sender Configuring RSVP A network host that receives an RSVP path message decides whether it wants to receive data on the proposed dataflow If so the host returns an RSVP reserve message In Figure 7 2 for example each host that received an RSVP path message returns a reserve message Each router in the network 1 Passes the reservation request to the local Circuit Resource Manager CRM 2 Forwards the reservation request to the previous hop in the flow as determined by the earlier path message In this manner the reserve message traces the data path set up by the corresponding path message and establishes resource reservation along the data path at each router Note that reservations from multiple receivers may be merged on their way to the
65. interface 3 17 A 22 static forwarding policies 3 38 A 80 MOSPFE accept DVMRP route policies 5 12 A 73 PIM global 6 20 A 37 interface 6 31 A 51 RSVP global 7 4 A 54 interface 7 7 A 56 117355 D Rev 00 enabling DVMRP globally 4 9 on a circuit 4 31 on a tunnel 4 53 IGMP boundary group 3 31 globally 3 5 group policies 3 33 on an interface 3 16 static forwarding policies 3 38 MOSPF accept DVMRP route policies 5 12 globally 5 4 PIM globally 6 20 on an interface 6 31 RSVP on an interface 7 7 Encapsulation Mode parameter DVMRP tunnel 4 55 A 12 Estimated Bandwidth parameter line resources 2 11 8 4 A 28 Estimated Groups parameter IGMP global 3 7 A 17 Estimated Routes parameter DVMRP global 4 26 A 5 event messages logging DVMRP 4 29 IGMP 3 10 PIM 6 30 RSVP 7 6 F first fit multiline select algorithm line resources 8 12 Forward Cache Limit parameter 3 13 A 18 Forward Cache Size parameter DVMRP circuit 4 40 A 9 DVMRP tunnel 4 60 A 13 Forward Cache TTL parameter DVMRP circuit 4 41 A 9 DVMRP tunnel 4 61 A 13 Forwarding Mode parameter IGMP static forwarding policies 3 37 A 83 Index 3 forwarding table DVMRP defined 4 39 Full Update Interval parameter DVMRP global 4 11 A 3 G Garbage Timeout parameter DVMRP global 4 16 A 5 Generate Neighbor Hello ID parameter PIM global 6 24 A 41 Group Address parameter IGMP boundary group 3
66. line 117355 D Rev 00 9 3 Configuring IP Multicasting and Multimedia Services Multicast network R toy eoori Backup IP multicast router Primary IP multicast router Primary upstream yf Backup upstream interface _ interface A E IGMP Relay Network edge a E C C Downstream interface IP0071A IGMP host Figure 9 2 Multicast Network Topology with an IGMP Relay Device How IGMP Relay Works To an IGMP host on a directly attached network the IGMP Relay device appears to be an IP multicast router The host receives a host membership query from the IGMP Relay device and responds by sending an IGMP response A host can also send the IGMP Relay device an unsolicited join message To IGMP running on the IP multicast router the IGMP Relay device appears to be a locally attached host IGMP on the IP multicast router sends IGMP host queries to the IGMP Relay device IGMP Relay responds by forwarding relaying IGMP host reports and unsolicited join messages from its attached hosts 9 4 117355 D Rev 00 Configuring IGMP Relay In Figure 9 3 for example the following events occur on the IGMP Relay device 1 The IGMP Relay device sends IGMP host membership queries out the interfaces to LAN A LAN B and LAN C 2 Host 1 on LAN A re
67. multicast group addresses and masks Specifies the list of IP multicast group addresses and masks to which the C RP maps for example IP Address Mask 224 1 1 0 255 255 255 0 225 1 0 0 255 255 0 0 225 1 1 16 255 255 255 240 Click on Values and specify the list of multicast group addresses and masks in dotted decimal notation Not applicable Candidate RP Advertise Interval Configuration Manager gt Protocols gt IP gt PIM gt Global 60 5 to 26 214 seconds Specifies how often the C RP router sends periodic unicast C RP advertise messages to the BSR for this domain Either accept the default value of 60 seconds or set the C RP advertise interval to a value within the allowable range The highest allowable value 26 214 seconds is equal to 7 hours 16 minutes and 54 seconds 1 3 6 1 4 1 18 3 5 3 14 1 29 117355 D Rev 00 A 45 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Candidate RP Register Cache Timeout Configuration Manager gt Protocols gt IP gt PIM gt Global 210 5 to 65 535 seconds Specifies a timeout value in seconds for all cache entries whose inbound interface is created from PIM register packets received on the RP router If the RP router does not receive the PIM register packet within the specified period of
68. multiline circuit 8 12 117355 D Rev 00 Reserving Line Resources Setting the Multiline Threshold Bandwidth When using the first fit multiline select algorithm see Specifying the Multiline Select Algorithm on page 8 12 you can configure a threshold from 0 through 214 748 364 bits per second for the first available line By default the threshold is set to 0 LRM uses the simple first fit algorithm If you select a value greater than 0 LRM still uses the first available line with reservable bandwidth to service requests but moves to the next available line after reaching the configured threshold When all lines are at their threshold LRM returns to using the simple first fit algorithm Set this parameter only if you configured LRM on a multiline circuit and set the Multiline Select Algorithm parameter to First Fit To set the multiline threshold bandwidth complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on any connector for a line that is configured for RSVP 2 Click on Edit Line Resources in the Edit The Edit Line Resources window opens Connector window 3 Set the Multiline Threshold Bandwidth parameter Click on Help or see the parameter description on page A 33 4 Click on OK You return to the Configuration Manager window You set this parameter only if
69. of enabled Using Site Manager To disable or reenable a DVMRP accept policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens Choose Policy Filters The IP Policies menu opens Choose DVMRP The DVMRP Policies menu opens a eAJLIN Choose Accept Policies The DVMRP Accept Policy Filters window opens Select the name of the DVMRP accept policy that you want to disable or reenable Your selection is highlighted Set the Enable parameter Click on Help or see the parameter description on page A 64 Click on Done You return to the Configuration Manager window 4 78 117355 D Rev 00 Customizing DVMRP Configuring DVMRP Announce Policies A DVMRP announce policy governs the propagation of DVMRP routing information To configure a DVMRP announce policy you can use either the BCC or Site Manager Using the BCC To create a DVMRP announce policy navigate to the global DVMRP prompt for example box ip dvmrp and enter announce lt po name gt lt polname gt is the name of the DVMRP announce policy For example the following command creates a DVMRP announce policy called dvmrppol5 dvmrp announce dvmrppol5 announce dvmrppol5 dvmrp To customize a DVMRP announce policy set one
70. on the multicast protocol configured on the outbound router interface A typical value for DVMRP is 7200 and for MOSPF 600 For instructions on configuring IGMP static forwarding policies see Configuring IGMP Static Forwarding Policies on page 3 33 117355 D Rev 00 3 27 Configuring IP Multicasting and Multimedia Services To set the static forward cache lifetime complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Static Forward Cache Lifetime The IGMP Interface Parameters window parameter Click on Help or see the opens parameter description on page A 25 6 Click on Apply then click on Done You return to the Configuration Manager window Configuring a Static Host Entry A network may include a member of a multicast group that is unable to register its group membership with the local IGMP router for example a host that is a member of a multicast group but that is not running IGMP In this situation you can register the group member s network statically on the router A registration entry includes A group address An address prefix length A circuit name 3 28 117355 D Rev 00
71. or see the parameter description on page A 69 Click on Done You return to the Configuration Manager window 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Deleting DVMRP You can use the BCC or Site Manager to delete DVMRP from an IP interface Using the BCC To delete DVMRP from an IP interface navigate to the DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter delete For example the following command deletes DVMRP from IP interface 2 2 2 2 255 255 255 0 dvmrp 2 2 2 2 delete ip 2 2 2 2 255 255 255 0 Using Site Manager To delete DVMRP from an IP interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a connector configured with DVMRP The Edit Connector window opens 2 Choose Edit Circuit The Circuit Definition window opens 3 Choose Protocols The Protocols menu opens 4 Choose Add Delete The Select Protocols window opens 5 Click on DVMRP Site Manager deselects DVMRP 6 Click on OK You return to the Circuit Definition window 7 Choose File The File menu opens 8 Choose Exit You return to the Configuration Manager window 117355 D Rev 00 Chapter 5 Customizing OSPF Multicast Extensions MOSPF is a multicasting extension of OSPF You configure MOSPF by se
72. policy Set the IGMP interface parameter Static Forward Cache Lifetime to an appropriate value on the IGMP configured interface a typical value for MOSPF is 600 Enable the Multicast Downstream IGMP Relay parameter in the MOSPF global configuration This setting allows the source network from which the packet is received to be advertised as multicast capable so that the next hop router in the multicast cloud will not drop the packet because of an unknown source network Forwarding Multicast Traffic from an MOSPF Interface to a Nonmulticast Interface To forward multicast packets from an MOSPF configured interface to a nonmulticast IGMP static configured interface Set the IGMP static forwarding policy for the MOSPF interface with the forwarding mode set to dynamic to static Configure the outbound interfaces in the IGMP static forwarding policy 5 8 117355 D Rev 00 Customizing OSPF Multicast Extensions Configuring Multicast Forwarding on an OSPF Interface By default multicast packets are forwarded on an OSPF interface when you add MOSPF to the router You can use Site Manager to configure OSPF forwarding on the interface as required Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose OSPF MOSPF The OSPF menu opens 4 Choose Interfaces The OSPF Int
73. policy all networks in this list will be advertised If the list is null the actual network is advertised An encoding of 255 255 255 255 255 255 255 255 means match the actual network This allows advertisement of an aggregate or default along with the actual network 1 3 6 1 4 1 18 3 5 3 2 6 16 1 10 Outgoing Interfaces Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies An empty list Leave empty or specify IP addresses Specifies a list of DVMRP interfaces By specifying an interface in this list the policy applies to DVMRP advertisements sent using that interface If you want this policy to apply to any outbound DVMRP interface do not specify a value for this parameter If you want this policy to apply to specific outbound DVMRP interfaces specify the interface IP addresses 1 3 6 1 4 1 18 3 5 3 2 6 16 1 25 117355 D Rev 00 A 71 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Outgoing Tunnels Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies An empty list Leave empty or specify one or more 8 octet tunnel specifications Specifies a list of DVMRP tunnels If a tunnel interface appears in this list the filter applies to DVMRP advertisements sen
74. seconds router_adadress is the address of the DVMRP router whose capabilities you want to display For example the following mrinfo command displays the capabilities of DVMRP router 192 32 27 46 The DVMRP router is running Version 3 255 and supports pruning and mtrace mrinfo 192 32 27 46 192 32 27 46 version 3 255 prune genid mtrace 192 32 27 46 gt 192 32 27 39 1 1 192 32 27 46 gt 192 32 27 47 1 1 192 32 27 46 gt 192 32 191 2 1 1 tunnel 192 32 27 161 gt 192 32 27 162 1 1 B 4 117355 D Rev 00 rsvp Command Troubleshooting Commands The rsvp command allows you to view information about RSVP and set global configuration parameters Enter the rsvp command at the Technician Interface prompt as follows rsvp lt subcommanad gt lt options gt lt subcommand gt session phop oi path resv blockade Table B 3 describes each rsvp subcommand Table B 3 rsvp Subcommands Subcommand System Displays session Known RSVP sessions phop oi Known RSVP previous hops Known RSVP outgoing interfaces path RSVP path state resv blockade RSVP RESV state RSVP blockade state lt options gt d lt destination_IP gt lt protocol_ID gt lt destination_port gt p lt previous_hop gt f lt source_IP gt lt source_port gt n lt next_hop gt The options apply to subcommands as described in Table B 4 117355 D
75. sender of the path message Receiver H T 2 H Ji H Receiver m g i lt Receiver por hi oft l J ome Receiver mM EJ i Figure 7 2 fe IPOOOS8A RSVP Reserve Message 117355 D Rev 00 7 ao Configuring IP Multicasting and Multimedia Services Configuring RSVP Globally When you start RSVP on the router RSVP runs with default values for all global parameters You customize RSVP by modifying parameters as described under the following topics Topic Page Disabling and Reenabling RSVP 7 4 Choosing a Slot 7 5 Logging RSVP Messages 7 6 Disabling and Reenabling RSVP By default RSVP is enabled on the router To disable or reenable RSVP complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens
76. specify for the register suppression timer Otherwise the probe timer has no effect and the register suppression timer times out To set the probe timer complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens Set the Probe Time parameter Click on Help or see the parameter description on page A 47 Click on OK You return to the Configuration Manager window 6 28 117355 D Rev 00 Customizing Protocol Independent Multicast Enabling and Disabling Cisco Router Compatibility By default Bay Networks routers are compatible with the standard PIM specification defined in RFC 2362 You can enable Bay Networks routers to interoperate with Cisco routers configured with a nonstandard PIM implementation To enable or disable Cisco router compatibility complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global Click on Help or see the parameter description on page A 47 5 Set the Cisco Compatible parameter
77. the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens Set the Unreserved Policing Algorithm parameter Click on Help or see the parameter description on page A 31 Click on OK You return to the Configuration Manager window 8 10 117355 D Rev 00 Reserving Line Resources Specifying the Unreserved Queue Length If the Unreserved Policing Algorithm parameter is set to Queue Limit you can specify the maximum number of unreserved best effort packets to be held in queue for transmission After the queue length reaches this value the router discards best effort traffic when congestion occurs Note that priority queuing limits if configured override the value of this parameter By default LRM holds a maximum of 20 unreserved packets in queue for transmission Change this value to adjust the queue length limit from 0 through 214 748 364 packets limited by available buffers To specify the unreserved queue length complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on any connector for a line that is configured for RSVP 2 Click on Edit Line Resources in the Edit The Edit Line Resources window opens
78. the IGMP Relay interface type complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay 4 Choose Interfaces The IGMP menu opens The IGMP Interface Parameters window opens Set the Relay Circuit Type parameter Click on Help or see the parameter description on page A 26 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 9 15 Configuring IP Multicasting and Multimedia Services Configuring Unsolicited Reports on an Upstream Interface By default an IGMP Relay device sends an unsolicited group report on the upstream interface After an interval of 10 seconds IGMP sends a second report Using the BCC or Site Manager you can specify the interval between the first and second unsolicited reports or configure IGMP Relay to send one unsolicited report only Using the BCC To configure unsolicited reports on an upstream interface navigate to an IGMP Relay interface prompt for example box ethernet 2 2 ip 2 2 2 2 255 255 0 0 igmp relay and enter report interval lt interval gt interval is one of the values described in Table 9 3 Table 9 3 Unsolicited IGMP Report Interval Value Meaning 0 Configures IGMP Relay to send only one unsoli
79. the domain a new BSR is elected automatically For information about customizing BSR configuration parameters see Modifying the Candidate BSR Configuration on page 6 25 117355 D Rev 00 6 5 Configuring IP Multicasting and Multimedia Services Figure 6 1 shows the devices in a sample PIM network In this sample network receivers on LAN A want to simultaneously access the video data stream video teleconference connected to LAN B i i LAN A LAN B Video data ca I it A H I C hy H2 H H3 a H Candidate BSR H4 and candidate RP z Last hop router b or designated rT router d Rendezvous point router Host IP00097A Figure 6 1 PIM Network 6 6 117355 D Rev 00 Customizing Protocol Independent Multicast Join Prune Register and Assert Messages PIM routers communicate with each other using the following messages Join Prune Messages The DR sends join prune messages from a receiver toward a group s RP to either join the shared tree or remove prune a branch from it A single message contains both a join and a prune list This list includes a set of source addresses indicating the shortest path trees SPTs or the shared trees that the host wants to join The DR sends join and prune messages hop by hop t
80. the portion of the line s bandwidth to make available for RSVP requests Enter an estimated total bandwidth for this line from 0 through 214 748 364 bits per second To enable line resource management enter a value greater than 0 For point to point lines you can usually enter the total line speed For an Ethernet line you must estimate a value because shared media lines may not have all of the bandwidth available Base the estimate on line statistics the number of connected workstations or other site specific information To set the estimated bandwidth complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens Click on Edit Line Resources in the Edit Connector window Set the Estimated Bandwidth parameter Click on Help or see the parameter description on page A 28 The Edit Line Resources window opens Click on OK You return to the Configuration Manager window 117355 D Rev 00 Reserving Line Resources Setting the Reservable Bandwidth To enable RSVP reservable resources specify the portion of this line s bandwidth to make available for RSVP requests for guaranteed service The value can be any integer from 0 through 214 748 364 bits per second and must be less than the value of the Estimated Bandwidth par
81. the router advertises the actual network An encoding of 255 255 255 255 255 255 255 255 means match the actual network This allows advertisement of an aggregate or default along with the actual network 1 3 6 1 4 1 18 3 5 3 2 6 14 1 10 117355 D Rev 00 A 75 Configuring IP Multicasting and Multimedia Services IGMP Group Policy Parameters Use the following descriptions to set IGMP group policies Parameter Enable Path Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies Default Enable Options Enable Disable Function Enables or disables this policy Instructions Set this parameter as required MIB Object ID 1 3 6 1 4 1 18 3 5 3 2 6 11 1 2 Parameter Name Path Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies Default None Options A character string Function Specifies the name for this policy Instructions Enter a unique name to identify this policy MIB Object ID 1 3 6 1 4 1 18 3 5 3 2 6 11 1 4 A 76 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Sources Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies An empty list Leave empty or specify one or more sources Identifies which sources will match this policy
82. through 86 400 seconds 24 hours If the neighbor is running DVMRP mrouted Bay Networks recommends a TTL value of 300 seconds 1 3 6 1 4 1 18 3 5 3 12 2 1 15 117355 D Rev 00 A 9 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Advertise Self Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Advertise Advertise Do Not Advertise Specifies whether the router advertises its own local networks over this interface If you do not want routes advertised over a particular interface set this parameter to Do Not Advertise 1 3 6 1 4 1 18 3 5 3 12 2 1 16 Supply Default Route Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Enable Enable Disable Generate Specifies whether to enable or disable the default route 0 0 0 0 or to generate a default route on this interface Enable this feature if you want DVMRP to advertise a default route on this interface To generate a default route specify Generate 1 3 6 1 4 1 18 3 5 3 12 2 1 24 Listen Default Route Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Enable Enable Disable Receives the default route 0 0 0 0 on this interface Enable this feat
83. you configured the Resource Manager on a multiline circuit 117355 D Rev 00 8 13 Configuring IP Multicasting and Multimedia Services Setting the Reservation Latency By default the maximum latency for a reserved flow packet is 50 milliseconds ms limiting the amount of unreserved data that the link scheduler can transmit When the data transmit ring reaches a size where the time to transmit the data is greater than the value of this parameter no more unreserved data will be queued You can set the reservation latency from 0 through 214 748 364 ms Reduce the value of this parameter to obtain better delay characteristics for reserved flows but note that overall throughput may decrease Increase the default value to improve throughput but note that reserved flow delays may increase To set the reservation latency complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP Click on Edit Line Resources in the Edit Connector window Set the Reservation Latency parameter Click on Help or see the parameter description on page A 33 The Edit Connector window opens The Edit Line Resources window opens Click on OK You return to the Configuration Manager window 8 14 117355 D Rev 00 Reserving Line Resources Setting the Maximum Reservable Bandwidth fo
84. 1 provides the shortest path to that source network A shortest path tree also indicates those interfaces that are on the shortest path to that source network from a neighboring router 4 6 117355 D Rev 00 Customizing DVMRP Router E considers the network connecting it to router D to be on the shortest path to the source network connected to router A Router D has an interface d3 that is part of the shortest path from router E to the network connected to router A If neighboring routers have the same metric to a given source network the router with the lower IP address is responsible for propagating multicast traffic originating from that source network onto the network or tunnel that is common to these neighboring routers A network is considered a leaf network if it has no dependent downstream neighbors for a source In Figure 4 1 the network connected to router E net 5 is a leaf network Tree Pruning If no members are detected on a branch of the shortest path tree for a given group DVMRP prunes the branch The following conditions cause DVMRP to prune the shortest path tree for a given group e The router determines that the attached network on which the host is located or any other locally attached network has no active member of the group e The router determines that all neighbors on all attached networks other than the next hop network to the source have pruned the source and group e The router determines t
85. 117355 D Rev 00 Multicasting and Multimedia Overview For instruction on how to configure policies for these multicast protocols e See Configuring IGMP Policies on page 3 32 e See Configuring DVMRP Policies on page 4 69 e See Configuring MOSPF Accept DVMRP Route Policies on page 5 11 Using BCC show Commands to View Statistics As you configure your router interfaces with multicast protocols you can view configuration and statistical data about your networks using the following BCC show commands e show dvmrp e show igmp For example the following command displays summary information about the DVMRP configuration bec gt show dvmrp summary State Up Pruning Enabled Full Update Interval 60 Trigger Update Interval 5 Leaf Timeout 200 eighbor Timeout 140 eighbor Probe Interval 10 Switch Timeout 140 Route Expiration Timeout 200 Unconfirmed Route Timeout 340 stimated Routes 25 Actual Routes 8 To display online Help for available show options use the question mark command For example box show dvmrp caches neighbors summary interfaces routes tunnels For more information see BCC show Commands for IP Services 117355 D Rev 00 1 13 Chapter 2 Starting Multicasting and Multimedia Services This chapter explains how to perform a basic configuration that is a configuration using all available defaults for the IP multicast services describe
86. 13 Setting the Reservation Latency 8 14 Setting the Maximum Reservable Bandwidth for a Dataflow 8 15 Setting the Maximum Buffer Space for a Dataflow 8 16 117355 D Rev 00 8 1 Configuring IP Multicasting and Multimedia Services About Line Resource Reservation Emerging real time multicast applications for digitized voice and video such as multimedia conferencing and virtual reality require a level of consistent network service that routers cannot meet using simple first in first out FIFO queuing mechanisms The existing best effort delivery service of IP networks where variable queuing delays and data loss due to congestion are acceptable is not sufficient Resource reservation protocols such as RSVP address the requirements of delay sensitive applications by distributing information among routers to achieve a guaranteed quality of service QoS for specific packet streams flows By reserving bandwidth for QoS requests a system of line resource reservation can meet the demands of real time applications and maintain bandwidth for other traffic Bay Networks line resource reservation supports bandwidth guarantees only It does not support delay guarantees Resource Manager The Bay Networks Resource Manager lets you define a certain percentage of a line s bandwidth as reservable Applications that require a guaranteed QoS can negotiate for the reservable bandwidth When the router honors a reservation request the
87. 147 483 647 Specifies a metric that DVMRP uses to compare this policy to other policies that match the route DVMRP uses the precedence value to choose among multiple matches In ranking policies according to precedence keep in mind that the route with the highest value is the preferred route In case of a tie the route with the larger index number wins tunnel list of tunnels null d Specifies one or more DVMRP tunnels If a tunnel interface appears in this list this policy applies to DVMRP advertisements sent via that tunnel For each tunnel enter local followed by the local IP address then enter remote followed by the remote IP address If you want the policy to apply to any tunnel use the default null If you want the policy to apply to no tunnels enter a tunnel specification consisting of all f s 4 80 117355 D Rev 00 Customizing DVMRP Examples To specify a network address to which this policy applies navigate to the DVMRP announce policy prompt and enter the following commands announce dvmrppol2 dvmrp match match dvmrp announce dvmrppol2 network address 192 31 27 85 mask 255 255 255 0 match exact network 192 31 27 85 255 255 255 0 exact dvmrp announce dvmrppol2 To match any network number that falls within a range navigate to the DVMRP announce policy prompt and enter the following commands announce dvmrppol2 dvmrp match match dvmrp announce dvmrppol2 network a
88. 2 Configuring IGMP Group Policies ccceeeeeneeeee eco mente PE ER 3 32 Disabling and Reenabling IGMP Group Poliotas E E E E 3 33 vi 117355 D Rev 00 Configuring IGMP Static Forwarding Policies 20 0 cceessessseseeeeeseeeeeeesseeesereeeneee OOS Disabling and Reenabling IGMP Static Forwarding Policies re te re eres 3 38 Deleting KOMP soais a e e e a areata 3 39 Chapter 4 Customizing DVMRP DVMRP Concepts and Terminology 0 cceseee P E PE TEA EE P Naidibor Came ctioE siaina EN E R Source Route AdverlsemenlS sisi indocesncscasinissxcemasuccdadansith naan a aaa aaki 4 4 How DYMRP Chooses A ROIG eiiiai aa a a a 4 5 aW e E E E E E E EA E AE A 4 6 Shortest Path Trees aesa ai enana E E E E E enoma rere eee 4 6 TGS PUIG cerien AA OSa 4 7 Gustomemg DYMRP GISDA sirrien niaaa o aA E Na AASV riaa 4 8 Disabling and Reenabling DVMRP Globally ee ua ick Gatien Sean AY Seting He Update Maral sniiririn a epPeetey aren pe meren et rere re ree rr irene tr rye 4 10 Specifying the Full Update Interval sis ctcscaseiieserssnsnndissinien nial teoleeuaeieecinias 4 10 Specifying the Triggered Update Interval 2 0 eeceeseeeseeeeeeeeeseeeeeeeseeeneeeeeeeees 4 11 Disabling and Reenabling Tree Pruning cccecseecceeeeeeeneeeeeeeeeeeeteeeereeetesseeeee 412 Setting the Route Expiration Timer aara ET T T na 4 13 Setting the Unconfirmed Route TIME scccsccccteccccesseradevancsascersateerosneveredsectaskibnassven
89. 2 hours 16 minutes and 32 seconds 1 3 6 1 4 1 18 3 5 3 13 2 1 7 Max Host Response Time Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 100 1 to 100 tenths of a second Specifies in tenths of a second a maximum value for the amount of time that a host must wait before responding to a query IGMP places this value in the code field of an IGMP query Specify a maximum response time for this interface 1 3 6 1 4 1 18 3 5 3 13 2 1 15 Mtrace Entry Lifetime Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 30 30 to 8192 seconds Specifies in seconds the amount of time that a router should keep a forwarding cache entry that was created specifically for Mtrace Specify an Mtrace lifetime value for the interface The maximum value 8192 seconds is equal to 2 hours 16 minutes and 32 seconds 1 3 6 1 4 1 18 3 5 3 13 2 1 18 A 24 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Query Suppression Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces No Yes No Specifies whether IGMP queries are suppressed on this interface In the Bay Networks multicast implementation configuring IGMP on an interface means two things 1 the interface is used for forwarding mu
90. 3 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services IGMP Boundary Group Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following descriptions to set IGMP boundary group parameters Enable Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Admin Scope Enabled Enabled Disabled Specifies whether this record is enabled or disabled To disable the boundary group record enter Disabled 1 3 6 1 4 1 18 3 5 3 13 5 1 2 Group Address Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Admin Scope None A valid group address Specifies the address of a multicast host group Enter a group address to define this IGMP boundary record 1 3 6 1 4 1 18 3 5 3 13 5 1 3 Prefix Length Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Admin Scope None A valid prefix for the group address Specifies a prefix for the multicast host group address Enter an address prefix from 0 through 32 to define this IGMP boundary record 1 3 6 1 4 1 18 3 5 3 13 5 1 4 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Ma
91. 3 12 1 14 A 6 117355 D Rev 00 Site Manager Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Pruning Enable Configuration Manager gt Protocols gt IP gt DVMRP gt Global Enable Enable Disable Enables or disables pruning functionality on the router DVMRP performs route pruning by default If you want to disable this function on the router select Disable 1 3 6 1 4 1 18 3 5 3 12 1 15 Max Routes Configuration Manager gt Protocols gt IP gt DVMRP gt Global 0 0 or any integer Specifies the number of routes that DVMRP can learn per slot This parameter limits the number of routes that can be stored in the routing table If you want DVMRP to store all learned routes in the routing table use the default 0 If you specify a maximum number of routes you must include a route for every local network that has a circuit configured for multicasting 1 3 6 1 4 1 18 3 5 3 12 1 17 DVMRP Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Enable Enable Disable Enables or disables DVMRP on this circuit If you have configured DVMRP on this circuit enter Disable to disable it 1 3 6 1 4 1 18 3 5 3 12 2 1 2 117355 D Rev 00 A 7 Configuring I
92. 3 3 Configuring IP Multicasting and Multimedia Services Customizing IGMP Globally When you configure IGMP on the router IGMP is automatically enabled with default values for all global parameters You customize global IGMP by modifying parameters as described under the following topics Topic Page Enabling and Disabling IGMP Globally 3 5 Estimating the Number of Groups 3 6 Specifying a Version Threshold Time 3 8 Logging IGMP Messages 3 10 Enabling Join Acknowledgments 22 Specifying a Forwarding Cache Limit 3 13 Accepting a Nonlocal Report 3 14 3 4 117355 D Rev 00 Enabling and Disabling IGMP Globally Configuring and Customizing IGMP When you configure IGMP on the router IGMP is automatically enabled You can use the BCC or Site Manager to disable and reenable IGMP on the router Using the BCC To disable or reenable IGMP on the router navigate to the global IGMP prompt for example box ip igmp and enter state lt state gt state is one of the following enabled default disabled Using Site Manager To enable or disable IGMP on the router complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Gl
93. 4 1 18 3 5 3 14 1 8 A 40 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Generate Neighbor Hello ID Configuration Manager gt Protocols gt IP gt PIM gt Global Enable Enable Disable Specifies whether the Hello message sent by the PIM router to its neighbors contains a generation identifier A generation identifier is a randomly assigned number that remains static as long as the router is active The PIM router uses the generation identifier to quickly learn whether a neighbor rebooted within the holdtime specified in its previous Hello message When a neighbor reboots it is assigned a new generation identifier and immediately sends a Hello message that contains the new generation ID The generation ID triggers a DR on the LAN to send the most recent RP set information to the neighbor that just rebooted Set to Enable to allow the PIM router to send Hello packets that contain a generation identifier to its neighbors Set to Disable to prevent the PIM router from sending Hello packets that contain a generation identifier to its neighbors 1 3 6 1 4 1 18 3 5 3 14 1 15 Candidate BSR Configuration Manager gt Protocols gt IP gt PIM gt Global Disable Enable Disable Specifies whether to configure a PIM router as a C BSR PIM elects the C BSR
94. 5 IGMP Relay 06 ere rere T r anaa eeute A 1 5 Moncas TREMA aa E 1 5 Muten ct MI OT sirai a E A N 1 6 Coniguing Multicast MiIgratiDYy ceceiccccnsc ciate tenceecte solsededanuanied swaderenduerehntacenndeiaadonas 1 12 Using BCC show Commands to View Statistics cccccecceeeeeseeeeeceeeeeeeeseeeeeeeeaeeseenes 1 13 Chapter 2 Starting Multicasting and Multimedia Services ee Fela Ts GNF ipn meee rere terre rt reer ere Terre tire re rerr rrr Tere rree Terr rer ay Ea 2 2 Ar DYNIA onain re re aeene tern teri ouren tomer mr ennrn Treen artnet rennet es 2 4 Garing WOE ririri nents sctasnuettaked E EE E 2 6 117355 D Rev 00 v Darina PIN ak aetna ae aa eben Aas addi A Retr LaaeA eit ent wsEe tiie 2 7 Configuration Prerequisites ee sie boeid er TT ooreis E 2 7 Staring FIM oN Ihe ROUtEI irge a O aA 2 8 Sr MOUP urian trent tenner mere renner te serere reer remnant 2 10 Chapter 3 Configuring and Customizing IGMP IGMP GConcents and Terminology srira inns rnrn tosiaan ENE miami 3 2 VEEE TE e EAI T salen A E E E A A 3 2 IOMP RHOS REDON E neiere a aeaa 3 3 PTEN MOS OS oa pacatznn pasa pated ane peawiaangaabtde gaadumigna petunund padaaenea pepaeaeN 3 3 Customizing IGMP Globally rte PEE reer eer meena seerenueetet 3 4 Enabling and Disabling IOMP Globally 3 siiccs casctinss sasersccercuierasacanteegacetadanticucrntetaledsane 3 5 Estimating the Number of GOPS aasarin aaae iina a aa 3 6 Specifying a Versio
95. 5 D Rev 00 3 35 Configuring IP Multicasting and Multimedia Services In Figure 3 3 multicast traffic is forwarded to a multicast interface and on to nonmulticast interfaces To create an IGMP static forwarding policy for this type of scenario e Set the forwarding mode to dynamic to static e Specify the static out circuits in this example IGMP interfaces 2 and 3 Multicast network 1 DVMRP or MOSPF Configure IGMP static a forwarding policy as follows Forwarding Mode Dynamic to Static Out Circuits Specify interface 2 or 3 2 IGMP 3 IGMP v Host Host IP0104A Figure 3 3 Forwarding Multicast Traffic from a Dynamic Network to Static Interfaces For more information about multicast migration tools see Multicast Migration on page 1 6 3 36 117355 D Rev 00 Configuring and Customizing IGMP To configure an IGMP static forwarding policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose IGMP The IGMP Policies menu opens 5 Choose Static Forwarding Entries The IGMP Static Forwarding Entries window opens 6 Click on Add The Add IGMP Static Forwarding Entry window opens 7 Set the following par
96. 55 D Rev 00 7 13 Configuring IP Multicasting and Multimedia Services Deleting RSVP To delete RSVP from an IP interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a connector configured with RSVP The Edit Connector window opens 2 Choose Edit Circuit The Circuit Definition window opens 3 Choose Protocols The Protocols menu opens 4 Choose Add Delete The Select Protocols window opens 5 Click on RSVP Site Manager deselects RSVP 6 Click on OK You return to the Circuit Definition window 7 Choose File The File menu opens 8 Choose Exit You return to the Configuration Manager window 117355 D Rev 00 Chapter 8 Reserving Line Resources This chapter covers the following topics Topic Page About Line Resource Reservation 8 2 How the Resource Manager Works with RSVP 8 3 Setting the Estimated Bandwidth 8 4 Setting the Reservable Bandwidth 8 5 Specifying the Traffic Queuing Algorithm 8 6 Specifying the LRM Policing Algorithm 8 7 Setting the Bandwidth Interval 8 8 Setting the Inflate Reservations Percentage 8 9 Specifying the Unreserved Policing Algorithm 8 10 Specifying the Unreserved Queue Length 8 11 Specifying the Multiline Select Algorithm 12 Setting the Multiline Threshold Bandwidth 8
97. 8 12 A 32 Multiline Threshold Bandwidth parameter line resources 8 13 A 33 N Name parameter DVMRP accept policies 4 77 A 64 announce policies 4 82 A 69 unicast accept policies 4 72 A 59 IGMP group policies 3 32 A 76 static forwarding policies 3 37 A 80 MOSPF accept DVMRP route policies 5 11 A 73 Neighbor Probe Interval parameter DVMRP global 4 22 A 6 Neighbor Timeout parameter DVMRP global 4 18 A 4 117355 D Rev 00 neighbors DVMRP communicating with other routers via circuit 4 47 via tunnel 4 66 directly connected defined 4 2 tunnel connected defined 4 2 Nonlocal Reports parameter IGMP global 3 14 A 20 O Out Circuits parameter IGMP static forwarding policies 3 37 A 83 Outgoing Interfaces parameter DVMRP announce policies 4 82 A 71 Outgoing Tunnels parameter DVMRP announce policies 4 82 A 72 P permanent host group 1 2 PIM Protocol Independent Multicast bootstrap router 6 5 cache timeout interval 6 33 candidate bootstrap routers 6 5 candidate BSR configuration 6 25 candidate RP routers 6 4 6 26 Cisco router compatibility 6 29 configuration prerequisites 2 7 deleting from an interface 6 37 designated router defined 6 3 disabling globally 6 20 on an interface 6 31 enabling globally 6 20 on an interface 6 31 Hello interval 6 32 hosts 6 3 IGMP Relay on downstream device 6 35 join prune interval for an interface 6 34 global
98. BAY NETWORKS OR ITS LICENSORS BE LIABLE FOR ANY COST OF SUBSTITUTE PROCUREMENT SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES RESULTING FROM INACCURATE OR LOST DATA OR LOSS OF USE OR PROFITS ARISING OUT OF OR IN CONNECTION WITH THE PERFORMANCE OF THE SOFTWARE EVEN IF BAY NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT SHALL THE LIABILITY OF BAY NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO BAY NETWORKS FOR THE SOFTWARE LICENSE 5 Government Licensees This provision applies to all Software and documentation acquired directly or indirectly by or on behalf of the United States Government The Software and documentation are commercial products licensed on the open market at market prices and were developed entirely at private expense and without the use of any U S Government funds The license to the U S Government is granted only with restricted rights and use duplication or disclosure by the U S Government is subject to the restrictions set forth in subparagraph c 1 of the Commercial Computer Software Restricted Rights clause of FAR 52 227 19 and the limitations set out in this license for civilian agencies and subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause of DFARS 252 227 7013 for agencies of the Department of Defense or their successors whichever is applicable 6 Use of Software in the European Community This provisi
99. D Rev 00 Acronyms italic text screen text separator gt vertical line Preface Indicates file and directory names new terms book titles and variables in command syntax descriptions Where a variable is two or more words the words are connected by an underscore Example If the command syntax is show at lt valid_route gt valid_route is one variable and you substitute one value for it Indicates system output for example prompts and system messages Example Set Bay Networks Trap Monitor Filters Shows menu paths Example Protocols gt IP identifies the IP option on the Protocols menu Separates choices for command keywords and arguments Enter only one of the choices Do not type the vertical line when entering the command Example If the command syntax is show ip alerts routes you enter either show ip alerts or show ip routes but not both This guide uses the following acronyms AS ASBR BDR BR BSR CRM DR autonomous system AS boundary router backup designated router border router bootstrap router Circuit Resource Manager designated router 117355 D Rev 00 xxi Configuring IP Multicasting and Multimedia Services DVMRP Distance Vector Multicast Routing Protocol FDDI Fiber Distributed Data Interface FIFO first in first out HSSI High Speed Serial Interface IGMP Internet Group Management Protocol IGMP R IGMP Relay IP Internet Protocol IR internal ro
100. DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Forward Cache Size parameter Click on Help or see the parameter description on page A 13 6 Click on Apply and then click on Done You return to the Configuration Manager window Specifying the Timeout for Cache Entries To specify the timeout for cache entries in the forwarding table you can use the BCC or Site Manager Using the BCC To specify a timeout value for entries in the cache navigate to a tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter cache timeout lt seconds gt seconds is the timeout value in seconds The default value is 7200 seconds For example the following commands cause DVMRP to preallocate a forwarding table for 50 entries for tunnel 3 3 3 3 3 3 3 4 The timeout value for entries in this table is 8000 seconds 2 hours 13 minutes and 20 seconds dvmrp 3 3 3 3 3 3 3 4 cache size 50 dvmrp 3 3 3 3 3 3 3 4 cache timeout 8000 dvmrp 3 3 3 3 3 3 3 4 117355 D Rev 00 Using Site Manager Customizing DVMRP To specify the cache TTL for the table entries complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Tunnel The DVMRP menu opens The DVMRP
101. Group Policies An empty list Leave empty or specify one or more receiver address and receiver mask octet combinations Identifies which receivers match this policy If you want this filter to match any receiver do not specify a value for this parameter To match specific receivers enter the receiver address and receiver mask combinations as follows First 4 octets receiver address Next 4 octets receiver mask 1 3 6 1 4 1 18 3 5 3 2 6 11 1 12 117355 D Rev 00 A 79 Configuring IP Multicasting and Multimedia Services IGMP Static Forwarding Policy Parameters Use the following descriptions to set IGMP static forwarding policies Parameter Enable Path Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries Default Enable Options Enable Disable Function Enables or disables this policy Instructions Set this parameter as required MIB Object ID 1 3 6 1 4 1 18 3 5 3 2 6 20 1 2 Parameter Name Path Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries Default None Options A character string Function Specifies the name of this policy Instructions Enter a unique name to identify the policy MIB Object ID 1 3 6 1 4 1 18 3 5 3 2 6 20 1 4 A 80 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instru
102. IGMP to the interface For information and instructions on using Site Manager to configure a circuit on a slot and connector see Configuring WAN Line Services or Configuring Ethernet FDDI and Token Ring Services 2 2 117355 D Rev 00 Starting Multicasting and Multimedia Services When you have successfully configured the circuit the Select Protocols window opens Proceed as follows Site Manager Procedure You do this System responds 1 Inthe Select Protocols window choose the following protocols IP IGMP IGMP Relay 2 Click on OK The IP Configuration window opens 3 Set the following parameters IP Address Subnet Mask Transmit Beast Addr UnNumbered Assoc Address Click on Help or see the parameter descriptions beginning on page A 26 4 Click on OK If this is the first IGMP interface on the router the Initial IGMP Global Configuration window opens Otherwise you return to the Configuration Manager window 5 In the Initial IGMP Global Configuration window click on Save to accept the default values You return to the Configuration Manager window IGMP is now running on the router with default values for all interface parameters You can customize IGMP by modifying IGMP parameters For information and instructions see Chapter 3 Configuring and Customizing IGMP 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services
103. IP gt PIM gt Global 0 0 0 0 Any valid IP address or a circuitless IP address Specifies the IP address or circuitless IP address for the C RP PIM uses this IP address to map the configured group or group ranges to the RP First hop routers use the RP address to send register messages on behalf of a source sending a packet to the group Last hop routers use the RP address to send join prune messages to the RP to inform it about group membership Specify an IP address or circuitless IP address for the C RP in dotted decimal notation 1 3 6 1 4 1 18 3 5 3 14 1 26 Candidate RP Priority Configuration Manager gt Protocols gt IP gt PIM gt Global 0 0 to 255 Specifies the priority level for the C RP PIM elects the RP based on priority first then on the highest hash value If the priority level and hash value are the same PIM elects the C RP with the highest IP address as the RP the other C RPs serve as backups in case the RP fails Determine the priority level for the C RP and enter a value You must specify a priority level for each C RP in the PIM domain 1 3 6 1 4 1 18 3 5 3 14 1 23 A 44 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Candidate RP Group Mask Configuration Manager gt Protocols gt IP gt PIM gt Global Null all groups List of
104. IP interface 4 5 Configure a router to act as a rendezvous point router For information and instructions on configuring a circuit on a slot and connector see Configuring WAN Line Services or Configuring Ethernet FDDI and Token Ring Services When you have successfully configured the circuit the Select Protocols window opens Proceed as follows You do this Site Manager Procedure System responds 1 Inthe Select Protocols window choose the following protocols IP PIM 2 Click on OK When you select PIM IGMP is automatically configured on the slot and circuit The IP Configuration window opens 3 Set the following parameters IP Address Subnet Mask Transmit Beast Addr UnNumbered Assoc Address Click on Help or see the parameter descriptions beginning on page A 26 4 Click on OK The PIM Global Configuration window opens continued 117355 D Rev 00 Starting Multicasting and Multimedia Services Site Manager Procedure continued You do this System responds 5 Set the following parameters to configure a bootstrap router and a rendezvous point router Candidate BSR e Candidate BSR IP Address Candidate RP Candidate RP IP Address Candidate RP Group Mask Click on Help or see the parameter descriptions beginning on page A 41 6 Click on OK The Initial IGMP Global Configuration window opens 7 Accept the default values
105. LIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In addition the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure that may incorporate by reference certain limitations and notices imposed by third parties ji 117355 D Rev 00 Bay Networks Inc Software License Agreement NOTICE Please carefully read this license agreement before copying or using the accompanying software or installing the hardware unit with pre enabled software each of which is referred to as Software in this Agreement BY COPYING OR USING THE SOFTWARE YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH BAY NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE If you do not accept these terms and conditions return the product unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price 1 License Grant Bay Networks Inc Bay Networks grants the end user of the Software Licensee a personal nonexclusive nontransferable license a to use the Software either on a single computer or if applicable on a single authorized device identified by host ID for which it was originally acquired b to copy the Software solely for backup purposes in support of authorized use of the Software and c to use and
106. Lifetime 3 27 117355 D Rev 00 3 15 Configuring IP Multicasting and Multimedia Services Enabling and Disabling IGMP on an Interface When you add IGMP to an IP interface IGMP is automatically enabled on the interface Note IGMP is required for multicasting to function on the interface You can use the BCC or Site Manager to disable and reenable IGMP on the interface Using the BCC To disable or reenable IGMP on an IP interface navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter state lt state gt state is one of the following enabled default disabled Using Site Manager To enable and disable IGMP on an interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens continued 3 16 117355 D Rev 00 Configuring and Customizing IGMP Site Manager Procedure continued You do this System responds 5 Set the Enable parameter Click on Help or see the parameter description on page A 22 6 Click on Apply and then click on Done You return to the Configuration Manager window Specifying Query Suppressi
107. MRP accept policy to advertisements that arrive on any interface use the default null Otherwise use this parameter to specify the IP address of an interface that can receive DVMRP updates to accept or ignore metric 1 d through 31 Specifies the cost of the route that DVMRP injects into the DVMRP routing table network address mask Specifies the networks that match this policy and whether you match exact want the match to be exact or a range match range match exact means match the specific network advertisement number and mask match range means match any network number that falls in the range indicated by the IP address and mask precedence 0 d through Specifies a metric that DVMRP uses to compare this policy to 2 147 483 647 other policies that match the route DVMRP uses the precedence value to choose among multiple matches In ranking policies according to precedence keep in mind that the route with the highest value is the preferred route In case of a tie the route with the larger index number wins tunnel list of tunnels Specifies one or more DVMRP tunnels If a tunnel interface null d appears in this list this policy applies to DVMRP advertisements sent via that tunnel For each tunnel enter local followed by the local IP address then enter remote followed by the remote IP address If you want the policy to apply to any tunnel use the default null If you want the policy to apply to no tunnels ente
108. Manager window 117355 D Rev 00 3 31 Configuring IP Multicasting and Multimedia Services Configuring IGMP Policies Site Manager allows you to create IGMP group policies and IGMP static forwarding entry policies For more information about groups see Multicast Host Groups on page 1 2 Configuring IGMP Group Policies Use the following Site Manager procedure to create an IGMP group policy Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose IGMP The IGMP Policies menu opens 5 Choose Group Policies The IGMP Group Policy Filters window opens 6 Click on Add The Add IGMP Group Policy Filter window opens 7 Set the following parameters Name e Sources Action e Rule Precedence Groups e Receivers Circuits e Receivers Click on Help or see the parameter descriptions beginning on page A 76 8 Click on OK You return to the IGMP Group Policy Filters window 9 Click on Done You return to the Configuration Manager window 3 32 117355 D Rev 00 Configuring and Customizing IGMP Disabling and Reenabling IGMP Group Policies When you create an IGMP group policy by default it is enabled To disable or reenable an IGMP group policy co
109. Network to a Dynamic Multicast NGIWOIK cccccccdscscncsencanerecctsnarinmaennanaie 1 10 Forwarding Multicast Traffic over Static Interfaces rere Pere acrid Forwarding Multicast Traffic over Static Interfaces 0 cccceeeeeeeeees 3 34 Forwarding Multicast Traffic from a Static Network 10a Dynamit NEIWONK a csccsacestnccsarcs cuccennvenedentineteccemmaccsramerenitambantennedy 3 35 Forwarding Multicast Traffic from a Dynamic Network ta Stane Mendatan sirrin aaa R EE E E Ea 3 36 PIE PRBS scoisemiiadnan aiana a a A 4 3 OSPF Autonomous System 0 ere errr oe perenne P T 5 3 PUPA BUNOIIK sorisa e aaier raia Ra a 6 6 Shared Tree and Shortest Path Tree c cccsseeceeeeeeeeeeeeeeneeeseeeeeeaeeeees 6 9 How a Receiver Joins a Multicast Group rere re T eens 6 11 How a Source Sends Multicast Packets to a Group ccceeeeeereees 6 14 How the RP Switches to the Shortest Path Tree cccccecseeeeseees 6 16 How a Last Hop Router Switches to the Shortest Path Tree 6 18 RSVP Petia MS See yanrin A AA ARA 7 2 RSVP Reserve Message ities aain OnE A eins lO IGMP Relay DEVICE prugi naai aneaere 9 2 Multicast Network Topology with an IGMP Relay Device 06 9 4 IGMP Relay Host Queries and Responses cscceeeeeeeeeteeeeenees dai 9 5 IGMP Relay and Upstream Multicast Data ececceceseeeeeeeeesteeeeeneees 9 6 IGMP Relay and Downstream Multica
110. P The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Route Supply parameter Click on Help or see the parameter description on page A 14 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 63 Configuring IP Multicasting and Multimedia Services Listening for a Default Route By default DVMRP listens for a default route on this tunnel You can use the BCC or Site Manager to disable or reenable this feature as required Using the BCC To prevent a DVMRP tunnel from listening for a default route or to reenable such listening navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter default listen lt state gt state is one of the following enabled default disabled For example the following command configures DVMRP to stop listening for a default route on tunnel 2 2 2 2 4 4 3 2 tunnel 2 2 2 2 4 4 3 2 default listen disabled tunnel 2 2 2 2 4 4 3 2 Using Site Manager To listen for a default route complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window op
111. P gt DVMRP gt Tunnel gt Add Null The unicast IP address of an interface on a circuit supporting multicasting on the local router Identifies the local end of the tunnel To identify a unicast tunnel you must supply the unicast IP addresses of both ends of the tunnel the local interface and the remote interface Use this parameter to enter the local IP address 1 3 6 1 4 1 18 3 5 3 12 3 1 4 Remote IP Address Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel gt Add Null The unicast IP address of an interface supporting multicasting on a neighboring router Identifies the remote end of the tunnel To identify a unicast tunnel you must supply the unicast IP addresses of both ends of the tunnel the local interface and the remote interface Use this parameter to enter the remote IP address 1 3 6 1 4 1 18 3 5 3 12 3 1 5 A 16 117355 D Rev 00 Site Manager Parameters IGMP Parameters This section describes IGMP global configuration static host and interface parameters IGMP Global Configuration Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global Enable Enable Disable Enables or disables this IGMP record If you configured IGMP on this router use this parameter to disable it 1 3 6
112. P Boundary Group Parameters A 84 DVMRP Unicast Accept Policy Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Enabled Enabled Disabled Enables and disables this policy Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 17 1 2 Name Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies None A character string Supplies a name for this policy Enter a unique name to identify this policy 1 3 6 1 4 1 18 3 5 3 2 6 17 1 4 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Incoming Networks Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Unicast Accept Policies Null A list of IP addresses Specifies the network or networks that match this policy Enter an IP address in the following form First octet exact 1 or range 2 Next 4 octets network number Next 4 octets network mask An entry with an exact tag means match the specific network advertisement number and mask An entry with
113. P Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Route Enable Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Enable Enable Disable Enables or disables this circuit for routing Specify Enable if you want this circuit to be used to propagate routing information and if you want information about the source network associated with this circuit incorporated into routing updates Specify Enable if you want multicast datagrams to be forwarded on this circuit in native mode that is as multicast datagrams You can configure tunnels on this circuit Specify Disable if you want this circuit to exist only to support unicast tunnels If you specify Disable all other DVMRP circuit parameters are ignored The source network associated with this circuit is not incorporated into the routing updates 1 3 6 1 4 1 18 3 5 3 12 2 1 5 Metric Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit 1 1 to 31 Specifies the cost of this interface Determine the cost that you want to assign to this hop and enter a value Bay Networks recommends the following values for a LAN or tunnel across a single LAN 1 for a multihop tunnel 2 or 3 for a serial line or tunnel across a serial link 1 for a backup tunnel the primary tunnel metric 1 1 3 6 1 4
114. P Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens 5 Set the Version Threshold Time parameter Click on Help or see the parameter description on page A 18 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 3 9 Configuring IP Multicasting and Multimedia Services Logging IGMP Messages By default IGMP does not log messages You can use the BCC or Site Manager to specify the message types that you want IGMP to log Using the BCC To specify the types of messages that IGMP logs navigate to the global IGMP prompt for example box ip igmp and enter debug log flag lt lag gt flag is an integer or hexadecimal value equivalent to a message type Table 3 1 Table 3 1 IGMP Message Types with Hexadecimal and Integer Values Message Type Integer Value Hexadecimal Value No messages 0 0x0 Received IGMP protocol join leave packets 1 0x00000001 Sent IGMP messages 2 0x00000002 Received multicast protocol packets 4 0x00000004 Mtrace utility related log messages 8 0x00000008 Configuration related log messages 16 0x00000010 Interaction with multicast protocols 32 0x00000020 Interaction with RSVP 64 0x00000040 MTM forwarding cache related log messages 128 0x00000080 IGMP Relay related log messages 256 0x00000100 3 10 117355 D Rev 00 Using Site Manager Configuring and Customizing IGMP
115. P menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the following parameters Full Update Interval Triggered Update Interval Click on Help or see the parameter descriptions beginning on page A 3 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 4 11 Configuring IP Multicasting and Multimedia Services Disabling and Reenabling Tree Pruning Tree pruning is enabled on the router by default You can use the BCC or Site Manager to disable and reenable tree pruning on the router For information about DVMRP tree pruning see Tree Pruning on page 4 7 Using the BCC To disable or reenable tree pruning navigate to the global DVMRP prompt for example box ip dvmrp and enter pruning lt state gt state is one of the following enabled default disabled For example the following command disables DVMRP tree pruning on the router dvmrp pruning disabled dvmrp Using Site Manager To disable or reenable tree pruning complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens Set the Pruning Enable parameter Click on Help or see the
116. PIM interface PIM routers periodically send Hello messages so that PIM neighbors can discover each other Hello messages are multicast using address 224 0 0 13 all PIM routers group and are sent on all communication links Either accept the default value of 30 seconds or set the Hello interval to another value Bay Networks recommends a higher number for slower speed serial lines 1 3 6 1 4 1 18 3 5 3 14 2 1 8 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Cache Time Out Configuration Manager gt Protocols gt IP gt PIM gt Interface 210 5 to 2 147 483 647 seconds Specifies the amount of time in seconds that data entries remain in the PIM cache before timing out Specify a value in seconds that represents the duration of time that the data entry remains in the PIM cache before being deleted 1 3 6 1 4 1 18 3 5 3 14 2 1 9 Use Global Join Prune Interval Configuration Manager gt Protocols gt IP gt PIM gt Interface Enable Enable Disable Specifies whether or not the PIM router sends periodic join prune messages on this interface based on the interval specified using the global Default Join Prune Interval parameter Set to Enable if you want the PIM router to use the join prune interval specified using the global De
117. Precedence Incoming Networks Outgoing Interfaces Outgoing Tunnels Advertise Aggregate Metric Click on Help or see the parameter descriptions beginning on page A 69 8 Click on OK You return to the DVMRP Announce Policy Filters window 9 Click on Done You return to the Configuration Manager window 4 82 117355 D Rev 00 Customizing DVMRP Disabling or Reenabling DVMRP Announce Policies After you create a DVMRP announce policy you can disable and reenable it as needed Using the BCC To disable an existing DVMRP announce policy use state with a value of disabled For example box ip dvmrp announce policy3 accept policy3 dvmrp state disabled To reenable an existing DVMRP announce policy use state with a value of enabled Using Site Manager To disable or reenable a DVMRP announce policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols Choose IP The Protocols menu opens The IP menu opens Choose Policy Filters The IP Policies menu opens ay eo py Choose DVMRP Choose Announce Policies The DVMRP Policies menu opens The DVMRP Announce Policy Filters window opens Select the name of the DVMRP announce policy that you want to disable or reenable Your selection is highlighted Set the Enable parameter Click on Help
118. Prune Interval for an Interface The join prune interval is the interval in seconds at which each PIM interface on the router sends periodic join prune messages to its upstream neighbor By default PIM interfaces use the join prune interval configured for the entire router see Setting the Default Join Prune Interval for the Router on page 6 23 You can set a different join prune interval on a PIM interface by disabling the use of the global interval on that interface and specifying another interval You can specify an interval from 1 through 65 535 seconds 18 hours 12 minutes and 15 seconds the default interval is 60 seconds To specify a join prune interval for an interface complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens 5 Set the Use Global Join Prune Interval parameter to Disable Click on Help or see the parameter description on page A 52 6 Set the Join Prune Interval parameter Click on Help or see the parameter description on page A 53 7 Click on OK You return to the Configuration Manager window 6 34 117355 D Rev 00 Customizing Protocol Independent Multicast Enabling and Disabling IGMP Relay on a Downstre
119. RSEDES ALL PRIOR ORAL AND WRITTEN AGREEMENTS AND COMMUNICATIONS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT NO DIFFERENT OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST BAY NETWORKS UNLESS BAY NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT iv 117355 D Rev 00 Contents Preface EATE e eee eee er E T err ree teen ee terre a ter ear er eer nmr ree eee trans ee cere xix Meee e alc G1 aeeemeer er near nec ree treet etter eer Perr errcrr erin eree remerer berry te trere ee reer rere errr rr rer XX PAC MOU E dace ciselastnn astern pean dante aa AEE xxi PRE UNS UM Mee aieri ea O E ta dou ESEE OE EAD xxiii Fo to GOE HEI ete cesses cect te cae its a xxiv Chapter 1 Multicasting and Multimedia Overview Multicast Host GUPS searainarnieniaieennaeiain PER Poi E A 1 2 Pucat AOSS OE a en ee een ere en eee ee ee ern rrtr 1 3 Interhiet Group Management Protool n sciccncissiie ce aveierneasa ced nesstseadicisnneeesuidangreneld 1 3 Distance Vectar Multicast Routing Prototol sicccccesizvanccsastes cretaterenicenteracrenietantetietcatvanty 1 3 Multinasting Extensions th OSPF piritas NAN davai teen N R 1 4 Protocolindependeni FUNG EL cenrscracsuisininra 1 4 Resource Reservation ProlOCOl si ccssscrccctcseradivennsntdccsemerdciedasnrrcteassnpeaciaseriaiaimmepecensaneeas 1 4 Bay Networks Resource Manager siccscocecsisscoscssesscossnecsssccensiustcoesstussscoennacsteeenecsioncnneeuss 1
120. Relay gt Static Groups None A circuit name Specifies the circuit name for the local network on which the group member resides Use the static group parameters to manually register the network on which the multicast group member resides Click on Values and select the circuit name from the list 1 3 6 1 4 1 18 3 5 3 13 4 1 2 IGMP Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces Enable Enable Disable Indicates whether this IGMP interface record is enabled or disabled If you configured IGMP on this interface use this parameter to disable it 1 3 6 1 4 1 18 3 5 3 13 2 1 2 A 22 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Interface Query Rate Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 120 0 to 4096 seconds Specifies how often the router sends group membership queries on the interface If there are no multicast hosts on this circuit set the parameter to 0 to disable queries Specifying 0 affects queries only The router still forwards multicast datagrams on this circuit If another IGMP router on this network has assumed the query role this router will not send quer
121. System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens Set the Inflate Reservations Percentage parameter Click on Help or see the parameter description on page A 31 Click on OK You return to the Configuration Manager window 117355 D Rev 00 8 9 Configuring IP Multicasting and Multimedia Services Specifying the Unreserved Policing Algorithm LRM uses one of two policing algorithms for unreserved traffic Queue limit Restricts the number of buffers packets of unreserved traffic that LRM queues This method of policing enables unreserved traffic to use available reserved bandwidth Note If you enable priority queuing for this line the router uses the priority queue parameters to perform queue limit policing See Configuring Traffic Filters and Protocol Prioritization for information about priority queue parameters Leaky bucket Causes the router to actively police the unreserved traffic based on the unreserved bandwidth This method does not allow unreserved traffic to take advantage of available reserved bandwidth To specify the unreserved policing algorithm complete the following tasks Site Manager Procedure You do this System responds 1 In
122. TN sanio an aan ieaide aut ees anttaautd 6 31 Disabling and Reenabling PIM on an Interface cccccescceeseeeeeceeeeceeeeeeeeeneeesaes 6 31 Seting he Helo WGA ssiri nnana ar e aan ae anaa 6 32 Setting the Cache Timeout Interval sruerssrisiismie annaa S Setting the Join Prune Interval for an Interface eeseseeeneeeee PEAN pauan 6 34 Enabling and Disabling IGMP Relay on a Downstream Router ES E 6 35 Specifying the Local DA Priority icccccssieiescincasceclases inansusseiransaiesindsadteaudeadsnauieuenivs 6 36 Deleting PIM niente eis etnies sere eens neni ith E A PE aa 8 37 Chapter 7 Configuring RSVP FT YP NORG iea oa aia a AEA ka R 7 2 Conig ing AS VP CARA srorirdironirasner eoan aiaa eae 7 4 Disabling and Reenabling RSVP eicirissnosi oasian inaani iiaia 7 4 Choosing a Slot ssissiieisisinienias PEE EE Huari PE P ernek bogging FS VP SSA smansi irrita AAA O Configuring RSVP on An MENACE sosistas i tannin aaa 7 7 Disabling and Reenabling RSVP on an Interface csceeeeceeseeeeeeeeeeteeteeeeeeeeseaes 7 7 Setting the RSVP Default Refresh Timer sursicsinonininenioiiodieii a 7 8 Setting the RSVP Default Lifetime Multiplier ices PEE E 7 9 Setting the RSVP Refresh Blockade Multiplier ssseesseeseseessesseresssssrnssrrnesrnsernsns 7 10 mete he TITL Ie i nsectarroiat oni na EA SE Risk 7 11 Setting the Route Delay Value 00008 PT eei ates ee eaten reer a x 117355 D Rev 00 Enabling and
123. Table 1 1 provides an overview of how different packet types can travel between multicast and nonmulticast networks 117355 D Rev 00 Table 1 1 Multicasting and Multimedia Overview Packet Migration Between Multicast and Nonmulticast Networks Router Receives This Type of Packet On This Type of Interface Forwarding Action and How to Enable Unicast or broadcast Multicast The multicast protocol running on the interface forwards the packet to a multicast destination address or a list of multicast destination addresses based on a configured IP traffic filter The IP traffic filter converts the unicast or broadcast packets to multicast See 1 1Figure 1 1 Multicast Multicast The multicast protocol running on the router forwards the packet on to either A multicast configured outbound interface based on the multicast protocol decisions Anonmulticast IGMP static configured outbound circuit In Site Manager you must set the IGMP static forwarding entries policy for Dynamic to Static forwarding mode See Figure 1 2 Multicast Nonmulticast IGMP static configured If you set the IGMP static forwarding policy for Static to Dynamic forwarding mode and if multicast protocols are running on the outbound interfaces the router forwards multicast packet traffic to a multicast enabled network You must also set the IGMP interface parameter Static Forward Cache Lifetime to a value in acc
124. The DVMRP Circuit Parameters window opens 5 Set the Listen Default Route parameter Click on Help or see the parameter description on page A 10 6 Click on Apply and then click on Done You return to the Configuration Manager window 4 46 117355 D Rev 00 Customizing DVMRP Accepting Reports from Standard DVMRP Neighbors Only A standard DVMRP router sends a probe message to a neighbor before it advertises a route report DVMRP uses the probe message to learn the neighbor s capability Some routers however send only route reports they do not send probes By default DVMRP accepts reports from standard and nonstandard DVMRP neighbors You can use the BCC or Site Manager to allow a DVMRP interface to communicate with standard DVMRP routers only Using the BCC To specify whether a DVMRP interface communicates with standard DVMRP routers only navigate toa DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter depend on probe lt siate gt state is one of the following enabled disabled default For example the following command configures DVMRP to communicate with standard DVMRP routers only on IP interface 2 3 4 5 dvmrp 2 3 4 5 depend on probe enabled dvmrp 2 3 4 5 117355 D Rev 00 4 47 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify whether a DVMRP interface accepts reports from standard DVMRP n
125. The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Route Expiration Timeout parameter Click on Help or see the parameter description on page A 4 6 Click on Save You return to the Configuration Manager window 4 14 117355 D Rev 00 Customizing DVMRP Setting the Unconfirmed Route Timer The unconfirmed route timer determines how long DVMRP advertises a route as unreachable before it removes the route from the routing table The difference between this value and the route expiration timeout value represents the time period that the route will be advertised as unreachable without subsequent refreshment By default DVMRP sets the unconfirmed route timer to 340 seconds 5 minutes 40 seconds You can use the BCC or Site Manager to set the value from 40 through 8000 seconds 2 hours 13 minutes and 20 seconds Enter a value that is greater than the value you specified for the route expiration timer to allow enough time for the route to be advertised as unreachable Note DVMRP timers must be the same throughout the network Using the BCC To reset the unconfirmed route timer navigate to the global DVMRP prompt for example stack ip dvmrp and enter unconfirmed route timeout lt seconds gt seconds is an integer from 40 through 8000 indicating the maximum number of seconds that DVMRP advertises an unreachable route
126. Tunnel Parameters window opens Set the Forward Cache TTL Secs parameter Click on Help or see the parameter description on page A 13 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 61 Configuring IP Multicasting and Multimedia Services Advertising a Default Route By default DVMRP advertises a default route on this tunnel if one exists in the DVMRP routing table You can use the BCC or Site Manager to disable or reenable the advertising of a default route or to generate a default route as required Using the BCC To disable or reenable the advertisement of a default route or to enable the router to generate one navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter default supply lt state gt state is one of the following enabled default disabled generate For example the following command causes DVMRP to generate a default route on tunnel 2 2 2 2 4 4 3 2 dvmrp 2 2 2 2 4 4 3 2 default supply generate dvmrp 2 2 2 2 4 4 3 2 117355 D Rev 00 Using Site Manager Customizing DVMRP To disable or reenable the advertisement of a default route or to enable the router to generate one complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose I
127. VR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 0 to 214 748 364 Specifies how the first fit algorithm works providing you set the Multiline Select Algorithm parameter to First Fit If you accept the default value the Resource Manager uses the simple first fit algorithm If you select a value greater than 0 the Resource Manager still uses the first available line with reservable bandwidth to service requests but moves to the next available line after reaching the configured threshold When all lines are at their thresholds the Resource Manager resumes using the simple first fit algorithm Set this parameter only if you configured the Resource Manager on a multiline circuit and set the Multiline Select Algorithm parameter to First Fit Accept the default or enter a number less than the value of the Reservable Bandwidth parameter 1 3 6 1 4 1 18 3 5 16 2 1 3 1 12 Reservation Latency Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 50 0 to 214 748 364 ms Specifies the maximum latency for a reserved flow packet limiting the amount of unreserved data that the link scheduler can transmit When the data transmit ring reaches a size where the time to transmit the data is greater than the value of this parameter no more unreserved data will be queued Reduce the value of this paramete
128. able Enable Disable Enables or disables this policy Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 16 1 2 Name Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies None A character string Specifies the name of this policy Enter a unique name to identify this policy 1 3 6 1 4 1 18 3 5 3 2 6 16 1 4 Incoming Networks Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies An empty list A list of network identifiers Each identifier consists of a network number a mask and a flag to indicate whether the ID refers to a specific network or a range of networks Specifies which networks match this policy Enter an empty list to match any route 1 3 6 1 4 1 18 3 5 3 2 6 16 1 5 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Action Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies Announce Announce Ignore Specifies whether to advertise a route that matches this policy To advertise the route specify Announce To drop the route specify Ignore 1 3 6 1 4 1 18 3 5 3 2 6 16 1 6 Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt An
129. able MOSPF multicast extensions to support one of the following types of multicasting Intra area multicasting Intra area and inter area multicasting Intra area and inter AS multicasting All multicasting For more information about MOSPF multicasting types and instructions on customizing MOSPF see Chapter 5 Customizing OSPF Multicast Extensions To enable MOSPF on a router complete the following tasks Site Manager Procedure You do this System responds 1 Configure OSPF on the router as described in Configuring IP ARP RIP and OSPF Services 2 In the Configuration Manager window The Protocols menu opens choose Protocols 3 Choose IP The IP menu opens 4 Choose OSPF MOSPF The OSPF menu opens 5 Choose Global The Edit OSPF Global Parameters window opens Click on the Multicast Extensions parameter Click on Help or see the parameter description on page A 35 Click on Values to select the type of MOSPF that you want to configure and then click on OK If this is the first IGMP interface on the router the Initial IGMP Global Configuration window opens Otherwise you return to the Configuration Manager window In the Initial IGMP Global Configuration window click on Save to accept the default values You return to the Configuration Manager window 2 6 117355 D Rev 00 Starting Multicasting and Multimedia Services MOSPF is now runnin
130. action with RSVP 0x00000080 for MTM forwarding cache log messages 0x00000100 for IGMP R log messages 1 3 6 1 4 1 18 3 5 3 13 1 6 Relay Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global Disable Enable Disable Enables and disables IGMP Relay Set the parameter as required 1 3 6 1 4 1 18 3 5 3 13 1 10 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Nonlocal Reports Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global Ignore Ignore Accept Controls whether IGMP accepts or ignores leave and join messages from a nonlocal network Set the parameter as required by your configuration 1 3 6 1 4 1 18 3 5 3 13 1 9 Relay Forwarding Timeout Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global 60 Any integer Sets the lifetime in seconds of IGMP Relay Multicast Table Manager forwarding entries Set the timer as required by your configuration 1 3 6 1 4 1 18 3 5 3 13 1 11 Relay Upstream Forwarding Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global Primary Primary Backup Both Specifies whether multicast data is forwarded from the IGMP Relay dev
131. al 7 6 A 56 Trace parameter PIM global 6 30 A 50 traffic filters effect on multicast data packets 1 2 Traffic Queuing Algorithm parameter line resources 8 6 A 29 Index 9 transient host group 1 2 Transmit Bcast Addr parameter IP configuration A 27 tree pruning DVMRP 4 7 trees shared PIM 6 8 shortest path DVMRP 4 6 shortest path PIM 6 8 Triggered Update Interval parameter DVMRP global 4 11 A 3 triggered updates 4 10 Tunnel List parameter IGMP boundary group 3 30 A 85 tunnel connected neighbors DVMRP defined 4 2 tunnels DVMRP addresses for 4 51 configuring 4 50 cost 4 56 disabling 4 53 enabling 4 53 forwarding table for 4 59 neighbor connections 4 2 threshold value for 4 57 unicast disabling multicast support on 4 33 U UDP encapsulation RSVP circuit 7 13 dp Required parameter RSVP circuit 7 13 A 58 UnNumbered Assoc Address parameter IP configuration A 28 G Unreserved Policing Algorithm parameter line resources 8 10 A 31 Unreserved Queue Length parameter line resources 8 11 A 32 update interval DVMRP 4 10 Use Global Join Prune Interval parameter PIM interface 6 34 A 52 V Version Threshold Time parameter IGMP global 3 9 A 18 Index 10 117355 D Rev 00
132. am Router An IGMP Relay device is a unicast router with an interface to a multicast router and interfaces to one or more networks containing network hosts A router configured as an IGMP Relay device provides group registration services for an IP multicast router in a PIM environment For more information about IGMP Relay see Chapter 9 Configuring IGMP Relay By default IGMP Relay support for downstream routers is disabled When you enable IGMP Relay support for a downstream router PIM receives multicast data from the downstream router encapsulates the data within a register packet and sends the packets to the elected RP in the PIM domain To enable and disable IGMP Relay support for a downstream router complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens 5 Set the Downstream IGMP Relay parameter Click on Help or see the parameter description on page A 53 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 35 Configuring IP Multicasting and Multimedia Services Specifying the Local DR Priority The local DR priority indicates the priority level for a DR on the LAN The higher the number the higher the priority
133. am toward the last hop router 6 10 117355 D Rev 00 Customizing Protocol Independent Multicast Figure 6 3 shows how a receiver joins a group Source S LAN A IGMP host membership report r gt l DR Receiver me Join message PIM router Rendezvous point router Designated router for LAN IP00091A Figure 6 3 How a Receiver Joins a Multicast Group 117355 D Rev 00 6 11 Configuring IP Multicasting and Multimedia Services How a Receiver Leaves a Multicast Group When a receiver wants to leave a multicast group it sends an IGMP leave message to the DR When all directly connected members of a multicast group leave the group or time out and no downstream members remain the DR sends a prune message upstream and PIM deletes the route entry after that entry times out How a Source Sends Multicast Packets to a Group The following steps which are illustrated in Figure 6 4 describe how a source sends multicast packets to a group 1 A source directly attached to a LAN sends a multicast data packet to the DR The DR first hop router encapsulates each packet in a register message and sends a unicast message directly to the RP for distribution down the shared tree 2 The RP responds in the following ways if it has downstream group members that want to receive multicast traffic e Ifthe data rate of the source
134. ame result they ensure that the IP unicast routing table on the multicast router contains routes to the networks locally attached to the IGMP Relay device However DVMRP which builds its own routing table separate from the IP unicast routing table has no knowledge of the networks To make the routes known to DVMRP you configure a DVMRP unicast accept policy that specifies the routes DVMRP copies the routes from the IP unicast routing table and injects them into the DVMRP routing table For instructions see Configuring DVMRP Unicast Accept Route Policies on page 4 69 9 20 117355 D Rev 00 Configuring IGMP Relay In Figure 9 7 for example 1 The IGMP Relay device uses RIP to advertise net_1 net_2 and net_3 to the DVMRP multicast router The RIP routes are stored in the IP unicast routing table 2 The unicast accept route policy causes DVMRP to copy the three routes from the IP unicast routing table and inject them into the DVMRP routing table DVMRP routing table IP unicast routing table DVMRP inject unicast route policy net_1 net_2 net_3 OP DVMRP router RIP net_1 net_2 net_3 IP0086A Figure 9 7 DVMRP Unicast Accept Route Policy 117355 D Rev 00 9 21 Configuring IP Multicasting and Multimedia Services Configuring a Backup Multicast Router IGMP Relay supports two types of backup configuration e Configurati
135. ameter Caution Never make all available bandwidth reservable Leave at least 15 percent of bandwidth available for network management routing protocols and other best effort traffic To set the reservable bandwidth complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on any connector for a line that is configured for RSVP 2 Click on Edit Line Resources in the Edit The Edit Line Resources window opens Connector window 3 Set the Reservable Bandwidth parameter Click on Help or see the parameter description on page A 29 4 Click on OK You return to the Configuration Manager window 117355 D Rev 00 8 5 Configuring IP Multicasting and Multimedia Services Specifying the Traffic Queuing Algorithm By default the Line Resource Manager LRM schedules reserved traffic ahead of unreserved traffic You can configure the LRM to use best effort scheduling for all reserved traffic To specify the traffic queuing algorithm complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on any connector for a line that is configured for RSVP 2 Click on Edit Line Resources in the Edit The Edit Line Resources window opens Connector window 3 Set the Traffic Que
136. ameter as required 1 3 6 1 4 1 18 3 5 3 2 6 14 1 2 Name Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies None Any alphanumeric character string Identifies this policy Enter a unique name for the policy 1 3 6 1 4 1 18 3 5 3 2 6 14 1 4 Action Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies Accept Accept Ignore Specifies whether the DVMRP route should be used by MOSPF To advertise the route specify Accept To drop the route specify Ignore 1 3 6 1 4 1 18 3 5 3 2 6 14 1 6 117355 D Rev 00 A 73 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies 0 An integer Specifies a metric value to be used to compare this policy with other policies that a route may match A policy with a higher metric takes precedence over a policy with a lower metric In case of a tie the protocol uses an internal index value assigned to the policy by IP software The position of the policy in the list indicates the index value from lowest to highest Use this parameter to assign precedence to policies that match the same ro
137. ameters Name Forwarding Mode Rule Precedence Groups Sources In Circuits Out Circuits Click on Help or see the parameter descriptions beginning on page A 80 8 Click on OK You return to the IGMP Static Forwarding Entries window 9 Click on Done You return to the Configuration Manager window 117355 D Rev 00 3 37 Configuring IP Multicasting and Multimedia Services Disabling and Reenabling IGMP Static Forwarding Policies When you create an IGMP static forwarding policy by default it is enabled To disable or reenable an IGMP static forwarding policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose IGMP The IGMP Policies menu opens 5 Choose Static Forwarding Entries The IGMP Static Forwarding Entries window opens 6 Select the name of the IGMP static Your selection is highlighted forwarding policy that you want to disable or reenable 7 Set the Enable parameter Click on Help or see the parameter description on page A 80 8 Click on Done You return to the Configuration Manager window 3 38 117355 D Rev 00 Deleting IGMP Configuring and Customizing IGMP To delete IGMP from an IP interface complete the following tasks Sit
138. an configure only one primary and one backup upstream circuit on the router 1 3 6 1 4 1 18 3 5 3 13 2 1 23 Relay Report Interval Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 10 0 to any integer Specifies the interval in seconds between the initial group membership report on an IGMP R primary or backup circuit and a repetition of that report Using 0 causes IGMP R to send an unsolicited group report once only 1 3 6 1 4 1 18 3 5 3 13 2 1 24 IP Configuration Parameters Parameter Path Default Options Function Instructions MIB Object ID IP Address Select IP from the Select Protocols window and click on OK None 0 0 0 0 or any valid IP address Assigns a 32 bit IP address to the interface Enter the IP address of the interface in dotted decimal notation Enter 0 0 0 0 to configure an unnumbered interface on the circuit 1 3 6 1 4 1 18 3 5 3 2 1 4 1 4 A 26 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Subnet Mask Select IP from the Select Protocols window and click on OK None The Configuration Manager automatically calculates an appropriate subnet mask depending on the class of the network to which the interface connects However you can change the subnet mask using this parameter Spe
139. anager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Prune Life Time parameter Click on Help or see the parameter description on page A 11 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 49 Configuring IP Multicasting and Multimedia Services Configuring a DVMRP Tunnel You configure a DVMRP tunnel by setting parameters as described under the following topics Topic Page Supplying Addresses 4 51 Disabling and Reenabling a DVMRP Tunnel 4 53 Specifying the Encapsulation Mode for Tunneled Datagrams 4 54 Specifying the Cost 4 56 Specifying a Threshold 4 57 Configuring a Forwarding Table 4 59 Advertising a Default Route 4 62 Listening for a Default Route 4 64 Specifying an Encapsulation Mode for Control Messages 4 65 Accepting Reports from Standard DVMRP Neighbors Only 4 66 Specifying the Lifetime of a Prune Message 4 68 4 50 117355 D Rev 00 Customizing DVMRP Supplying Addresses To identify a unicast tunnel you must supply the unicast IP address of each end of the tunnel the local interface and the remote interface You can use the BCC or Sit
140. and enter upstream fwd lt option gt option is one of the options listed in Table 9 1 Table 9 1 IGMP Relay Forwarding Options Option Meaning use upstream primary IGMP Relay uses the primary upstream interface only if both the default primary interface and the backup interface are active use upstream backup IGMP Relay uses the backup upstream interface only if both the primary interface and the backup interface are active both IGMP Relay uses both the primary upstream interface and the backup upstream interface if both interfaces are active For example the following command configures IGMP Relay to use both upstream interfaces if both interfaces are active relay upstream fwd both relay 9 12 117355 D Rev 00 Configuring IGMP Relay Using Site Manager To configure upstream data forwarding complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens 5 Set the Relay Upstream Forwarding parameter Click on Help or see the parameter description on page A 20 6 Click on Save You return to the Configuration Manager window Specifying the Relay Interface Type The interface type parameter specifies that th
141. any information about the operation design performance or implementation of the Software and user manuals that is confidential to Bay Networks and its licensors however Licensee may grant permission to its consultants subcontractors and agents to use the Software at Licensee s facility provided they have agreed to use the Software only in accordance with the terms of this license 3 Limited warranty Bay Networks warrants each item of Software as delivered by Bay Networks and properly installed and operated on Bay Networks hardware or other equipment it is originally licensed for to function substantially as described in its accompanying user manual during its warranty period which begins on the date Software is first shipped to Licensee If any item of Software fails to so function during its warranty period as the sole remedy Bay Networks will at its discretion provide a suitable fix patch or workaround for the problem that may be included in a future Software release Bay Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is first shipped to Licensee Bay Networks will replace defective media at no charge if it is returned to Bay Networks during the warranty period along with proof of the date of shipment This warranty does not apply if the media has been damaged as a result of accident
142. ard By default DVMRP sends a probe every 10 seconds You can use the BCC or Site Manager to specify a value from 5 through 30 seconds If the neighbor is running DVMRP mrouted ensure that your probe interval value matches the value used by the neighbor Using the BCC To reset the probe interval navigate to the global DVMRP prompt for example box ip dvmrp and enter neighbor probe interval lt seconds gt seconds is an integer from 5 through 30 indicating the number of seconds For example the following command sets the DVMRP probe interval to 20 seconds dvmrp neighbor probe interval 20 dvmrp 117355 D Rev 00 4 21 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify a probe interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Neighbor Probe Interval parameter Click on Help or see the parameter description on page A 6 6 Click on Save You return to the Configuration Manager window 4 22 117355 D Rev 00 Customizing DVMRP Specifying a Route Switch Interval The route switch interval specifies how long the router should wait without receiving a subsequent rout
143. at the Technician Interface prompt as follows mtrace lt options gt lt source gt lt destination gt lt group gt lt options gt e lt extra_hops gt g lt gateway gt i lt if_addr gt M m lt max_hops gt q lt nqueries gt r lt resp_dest gt s S lt statint gt t lt ttl gt U v w lt wait gt Table B 1 describes each mtrace command option Table B 1 mtrace Options Option Meaning e lt extra_hops gt Attempt to trace extra hops past a nonresponding router The extra_hops value is an integer g lt gateway gt Send the trace query via a unicast packet directly to the multicast router gateway that you specify i lt if_addr gt Use if_adar as the local interface address for sending the trace query and as the default address for the receiver and the response destination The value of f_addris an IP address in dotted decimal notation M Request the response using a multicast address m lt max_hops gt Set the maximum number of hops that are traced from the receiver back to the source to the integer you specify The default max_hops value is 32 q lt nqueries gt Set the maximum number of query attempts to the integer you specify The default nqueries value is 3 r lt resp_dest gt Send the trace response to a host that is the response destination other than to the host on which mtrace is running or to a multicast address other than the one registere
144. ataflow cccccesseceeeeeeeeeeteeeeeeeeeesaeeetenes 8 16 Chapter 9 Configuring IGMP Relay ISP Relay OYEFE srianan NEA E a N 9 2 IGMP Relay Topology TAT T a rere mech T aa TAT M ee HOW ICRI Relay WORS ace nada a dace ce dace a ae aoaaa 9 4 Unicast Routing Protocols on the IGMP Relay Device ccescceseeeseeeeeteeeeeetees 9 8 Routing Protocols on the Multicast Router nesses meres eras P E 9 8 Enabling and Disabling IGMP Relay Globally 00 0 ccccceeccceeeseeeeeeeeeeeeeeeeeeneeeseeeeeeaeeeee 9 9 Specifying a Timeout Value for Multicast Table Entries ccceeeeeceeeeeeeeeeeeeeeseeaes 9 11 Configuring Upstream Data Forwarding scccicscscciscncdansisnetasciniassiadataadeiiniantintannatiens 9 12 Specifying the Relay Interface Type ai cavssiisi cass venicdesvwnnsionsvveiiad oavvsbiidsosinanidiaonvenaaonvene 9 13 Configuring Unsolicited Reports on an Upstream Interface 0 ER ere 9 16 Configuring MOSPF for Use with IGMP AGlay srcrisciinorinisinniresscassieriarinininnnanasenn 9 18 117355 D Rev 00 xi Configuring a DVMRP Router for Use with IGMP Relay scceccsssseeeeesessteeeessenaees 9 20 Configuring a Backup Multicast Router rr er ere ETET ice ere 9 22 Configuring IGMP Relay with Router Peahuiieeney Jdvispiiaaenbertied E 9 23 Appendix A Site Manager Parameters DVMRP Parameters errr Pree errr ET serpents ere na ETT A 2 DYMRP Global Parameters rsisi
145. atagram in an IP unicast datagram Using the BCC or Site Manager you can configure DVMRP to loosely encapsulate multicast datagrams using the LSSR option See RFC 1075 for information about the LSSR option which is provided for backward compatibility Using the BCC To reset the encapsulation mode navigate toa DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter data encapsulation lt mode gt mode is one of the following ip in ip default Issr For example the following command specifies LSSR encapsulation for the tunnel dvmrp 2 3 4 5 4 4 2 3 data encapsulation Issr dvmrp 2 3 4 5 4 4 2 34 117355 D Rev 00 Using Site Manager Customizing DVMRP To choose an encapsulation mode complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Tunnel The DVMRP menu opens The DVMRP Tunnel Parameters window opens Set the Encapsulation Mode parameter Click on Help or see the parameter description on page A 12 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 55 Configuring IP Multicasting and Multimedia Services Specifying the Cost By default DVMRP assigns a cost metric of to a tunnel for recom
146. bug messages 1 3 6 1 4 1 18 3 5 16 1 1 1 6 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Trace Log Filter Configuration Manager gt Protocols gt IP gt RSVP gt Global 0 0 RSVP modules for which you want to log trace messages Enables or disables logging of trace messages for the specified RSVP modules To disable logging of RSVP trace messages accept the default value 0 To enable logging click on Values and select the RSVP modules for which you want to log trace messages 1 3 6 1 4 1 18 3 5 16 1 1 1 7 RSVP Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt RSVP gt Circuit Enable Enable Disable Sets the state of RSVP on this interface Disable and reenable RSVP on the interface as required 1 3 6 1 4 1 18 3 5 16 1 1 6 1 2 Refresh Blockade Multiple Configuration Manager gt Protocols gt IP gt RSVP gt Circuit 4 1 to 65 536 Specifies the number of refresh intervals that RSVP will stay alive in the blockade state Specify the number of refresh intervals for the blockade state 1 3 6 1 4 1 18 3 5 16 1 1 6 1 8 A 56 117355 D Rev 00 Parameter Path Default Options Function Instruc
147. cast Forwarding on an OSPF Interface aese 5 9 Configuring Multicast Capable External Routes 0 cccceeseeceeeeeeeceeeeeeeseceeeesaeeeeaes 5 10 Configuring MOSPF Accept DVMRP Route Policies a E T T wT Creating or Modifying MOSPF Accept DVMRP Route Policies AEAT o 6 Disabling or Reenabling MOSPF Accept DVMRP Route Policies cccceeeee 5 12 Chapter 6 Customizing Protocol Independent Multicast PIM Concepts aiid Terminology sccsciscoceuiieisiarisocuius aiuuisien cise iehaa aai ai 6 2 Components of a PIM Network 065 PT PEPEE E E pend pirena 6 3 FOSIE iaia a a a aa a LoS ROD ROJET oanien saaa ai A Ra E heats 6 3 Desionelod ROTON ssscicsacosinixcnccesttnensiesbietnecesaiencned i a aa 6 3 Rendezvous Font RP ROUGE ssbrnsiosunnii ni 6 4 Candidate RP Routers PEAT T E E E eana ere 116 4 BOOISIIED FOUTS sirisser A S 6 5 Candidate Bootstrap FOULS n ccseccccinccsscecciunesinsen conned anann nE NaN E 6 5 Join Prune Register and Assert Messages ran E T diun T P 6 7 JON BU Wes MOSS O T ap 6 7 Register and Register Stop Messages cccsccesceeeeeeeeeeseseeeeeeeeeeeeeeeteateetnes 6 7 Peseri MOSCA ES corsini na 6 7 Shared Trees and Shortest Path Trees cccccceesececseeceeeneeeeeeeeeseaeeeeeeeeessateeeeeeeeeees 6 8 Shared Trees ssccssctisncceeineevessnis T eee i ee er ere enemies ieai a 6 8 Shores Palh TEGE ariei a E a ade 6 8 How a Receiver Joins a Multicast Group ccecc
148. cececeeeeeeeeeeeeeeeeeeaeseeneeeeeaeeeeeeeeees 6 10 How a Receiver Leaves a Multicast Group PT PE AA EEE 8 12 How a Source Sends Multicast Packets to a Coup rrr eer re eer rrr How the RP Switches to the Shortest Path Tree 0 0 cccceccceeeeeeeeeeeeeeeeeeeeeeeeeeees 6 15 How the Last Hop Router Switches to the Shortest Path Tree cccssceeeeeeees 6 17 117355 D Rev 00 ix Gustomiena PIN ay sarina N Aa 6 19 Disabling and Reenabling PIM Globally a irin re E PT ME 6 20 Modifying the LastHop Threshold scimiscia 6 20 Modifying the Rendezvous Point Threshold 2 ccccececceceeeeeeeeeeeeneeeseeeseeseeeeees 6 21 Specifying the Threshold Sample Interval n s Seinen penton 6 22 Setting the Default Join Prune Interval for the Router cccecsseeceeesssteeeeeeenaees 6 23 Modifying Neighbor Hello Messages ccecceeeeceeeeceeeeeeeeeaeeeneeseaeeseeeeaeeseneees 6 24 Modifying the Candidate BSR Configuration ecceseesecceeeneeeceeeeeseeeeeeeneeeeneees 6 25 Modifying the Candidate RP Configuration 0 cccccceseeeeeeeeeeeeeeeeeeeeeeeteeeetaeeeee 6 26 Setting the Register Suppression Timer aoa ae ni pias See errs 6 27 Seting he PODE TIMET sesccatscniuctase tanec ia e aaO Ara Aaa 6 28 Enabling and Disabling Cisco Router Compatibility s essseseeseesenenneeneen ennenen 6 29 Logging PIM Messages n se T aoi ionan AT T ean P a 6 30 Gusiomemng F Monan TN
149. cified in Table 4 2 Table 4 2 Recommended Costs for DVMRP Interfaces Hop Cost LAN or tunnel across a single LAN 1 Multihop tunnel 2o0r3 Serial link or tunnel across a serial link 1 Backup tunnel Primary tunnel metric 1 You can use the BCC or Site Manager to assign a cost from 1 through 31 Using the BCC To specify the cost of an interface navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter metric lt metric gt metric is an integer from 1 the default through 31 indicating the cost of the interface For example the following command assigns a cost of 12 to DVMRP interface 2 3 4 5 dvmrp 2 3 4 5 metric 12 dvmrp 2 3 4 5 117355 D Rev 00 4 35 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify the cost of an interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Metric parameter Click on Help or see the parameter description on page A 8 6 Click on Apply and then click on Done You return to the Configuration Manager window 4 36 117355 D Rev 00 Cust
150. cifies the network and subnetwork portion of the 32 bit IP address Either accept the assigned subnet mask or enter another subnet mask in dotted decimal notation Enter 0 0 0 0 if you are configuring an unnumbered interface on the circuit 1 3 6 1 4 1 18 3 5 3 2 1 4 1 6 Transmit Beast Addr Select IP from the Select Protocols window and click on OK 0 0 0 0 0 0 0 0 or any valid IP broadcast address Specifies the broadcast address that this IP subnet uses to broadcast packets Accepting 0 0 0 0 for this parameter specifies that the IP router will use a broadcast address with a host portion of all 1s Accepting 0 0 0 0 does not configure the router to use the address 0 0 0 0 to broadcast packets For example if you have IP address 123 1 1 1 and a subnet mask of 255 255 255 0 accepting the default value 0 0 0 0 configures the IP router to use the address 123 1 1 255 to broadcast packets To set the explicit broadcast address of all 1s enter 255 255 255 255 for this parameter Accept the default 0 0 0 0 unless the calculated broadcast address host portion of all 1s is not adequate If this is the case then enter the appropriate IP broadcast address in dotted decimal notation If you set the IP Address parameter to 0 0 0 0 to configure an unnumbered interface Site Manager automatically sets this parameter to 255 255 255 255 1 3 6 1 4 1 18 3 5 3 2 1 4 1 8 117355 D Rev 00 A 27 Configuring IP Multicasting and Multimedia Services
151. cited group report on this interface 1 255 Configures the number of seconds that IGMP Relay waits to repeat Default is 10 the unsolicited report For example the following command configures IGMP Relay to repeat the unsolicited report after 30 seconds relay 2 2 2 2 1 report interval 30 relay 2 2 2 2 1 9 16 117355 D Rev 00 Configuring IGMP Relay Using Site Manager To configure unsolicited reports on an upstream interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Relay Report Interval parameter Click on Help or see the parameter description on page A 26 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 9 17 Configuring IP Multicasting and Multimedia Services Configuring MOSPF for Use with IGMP Relay An IGMP Relay device can provide host registration services for a multicast router configured as an MOSPF AS boundary router To configure MOSPF for use with an IGMP Relay device you must do the following Configure the router as an MOSPF AS boundary router For information about OSPF see Configuring IP ARP
152. click on Done You return to the Configuration Manager window 3 18 117355 D Rev 00 Configuring and Customizing IGMP Specifying a Query Rate By default IGMP sends a group membership query on the interface every 120 seconds 2 minutes You can use the BCC or Site Manager to disable queries or to specify a query rate from 1 through 4096 seconds 1 hour 8 minutes and 16 seconds Specifying 0 disables queries only The router still forwards multicast datagrams on this circuit Note If another IGMP router on this network has assumed the query role this router will not send out queries unless it has not heard of any queries within the number of seconds specified by the designated router timeout parameter see Specifying a Designated Router Timeout Interval on page 3 22 Using the BCC To specify a query rate or to disable queries navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter query rate lt rate gt rate is the number of seconds from 0 disabling queries through 4096 For example the following command specifies a query rate of 300 seconds 5 minutes igmp 2 2 2 2 3 query rate 300 igmp 2 2 2 2 3 117355 D Rev 00 3 19 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify a query rate complete the following tasks Site Manager Procedure You do this System responds 1
153. connected to the router 1 3 6 1 4 1 18 3 5 3 13 1 5 Join Ack Enable Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global Disable Enable Disable Indicates whether IGMP should send an immediate response in the form of a query to the group associated with this IGMP membership report Set this parameter as required 1 3 6 1 4 1 18 3 5 3 13 1 7 Forward Cache Limit Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global 512 64 to 65 535 Specifies the maximum number of MTM forwarding cache entries Set this parameter as required 1 3 6 1 4 1 18 3 5 3 13 1 8 A 18 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Debug Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Global None See instructions Causes IGMP to generate the specified log messages Click on Values and select the types of log messages that you want IGMP to generate The Debug field displays the following bitmasks for each type of message 0x00000001 for received IGMP join leave packets 0x00000002 for sent IGMP messages 0x00000004 for received multicast protocol messages 0x00000008 for MTRACE log messages 0x00000010 for configuration log messages 0x00000020 for interaction with multicast protocols 0x00000040 for inter
154. connector configured for RSVP gt Edit Connector window gt Edit Line Resources 10 1 to 214 748 364 seconds Specifies in seconds the interval over which the Resource Manager measures instantaneous bandwidth Enter a time interval if the default value of 10 seconds is not sufficient The maximum value 214 748 364 seconds is almost equal to 7 years 1 3 6 1 4 1 18 3 5 16 2 1 3 1 7 A 30 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Inflate Reservations Percentage Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 0 to 100 Specifies whether the Resource Manager adds a safety buffer to each RSVP reservation on this line by increasing bandwidth requests by a specified percentage To inflate reservations made on this line enter a percent value to increase each bandwidth request Increase the value of this parameter if you notice that the Resource Manager is discarding packets because applications generating reserved traffic are exceeding their flowspecs 1 3 6 1 4 1 18 3 5 16 2 1 3 1 8 Unreserved Policing Algorithm Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources Queue Lim
155. copy the associated user manual solely in support of authorized use of the Software by Licensee This license applies to the Software only and does not extend to Bay Networks Agent software or other Bay Networks software products Bay Networks Agent software or other Bay Networks software products are licensed for use under the terms of the applicable Bay Networks Inc Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software 2 Restrictions on use reservation of rights The Software and user manuals are protected under copyright laws Bay Networks and or its licensors retain all title and ownership in both the Software and user manuals including any revisions made by Bay Networks or its licensors The copyright notice must be reproduced and included with any copy of any portion of the Software or user manuals Licensee may not modify translate decompile disassemble use for any competitive analysis reverse engineer distribute or create derivative works from the Software or user manuals or any copy in whole or in part Except as expressly provided in this Agreement Licensee may not copy or transfer the Software or user manuals in whole or in part The Software and user manuals embody Bay Networks and its licensors confidential and proprietary intellectual property Licensee shall not sublicense assign or otherwise disclose to any third party the Software or
156. ctions MIB Object ID Site Manager Parameters Groups Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries An empty list Leave empty or specify one or more groups Identifies which groups match this policy If you want this filter to match any group do not specify a value for this parameter To match specific groups enter group number and group mask combinations as follows First 4 octets group number Next 4 octets group mask 1 3 6 1 4 1 18 3 5 3 2 6 20 1 5 Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries 0 An integer Specifies a metric value to compare this policy with other policies that a route may match A policy with a higher value takes precedence over a policy with a lower value In case of a tie the protocol uses an internal index value assigned to the policy by IP software The position of the policy in the list indicates the index value from lowest to highest Use this parameter to assign precedence to policies that match the same route 1 3 6 1 4 1 18 3 5 3 2 6 20 1 8 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Sources Configuration Manager gt Protocols gt IP gt Policy Filter
157. d Enables or disables this accept policy Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 15 1 2 Name Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies None A character string Specifies the name of this policy Enter a unique name to identify the policy 1 3 6 1 4 1 18 3 5 3 2 6 15 1 4 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Incoming Networks Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Null A list of IP addresses Specifies networks that match this rule To specify a network enter the address in the following format First octet exact 1 or range 2 Next 4 octets network number Next 4 octets network mask Exact means match only the specific network advertisement number and mask Range means match any network number that falls in the range indicated by the number and mask An exact encoding of 0 0 0 0 0 0 0 0 means match the default route A range encoding of 0 0 0 0 0 0 0 0 means match any route A null string also means match any route 1 3 6 1 4 1 18 3 5 3 2 6 15 1 5 Action Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Accept Accept Ignore Specifies the actio
158. d in this guide Topic Page Starting IGMP 2 2 Starting DVMRP 2 4 rting MOSPF 2 6 Starting PIM 2 7 Starting RSVP 2 10 117355 D Rev 00 2 1 Configuring IP Multicasting and Multimedia Services Starting IGMP IGMP is required for all types of multicasting If you want the router to receive and forward multicast packets that is packets with destination addresses from 224 0 0 255 through 239 255 255 255 IGMP must be running on the slot and circuit even if the circuit is a point to point circuit that will not be involved in IGMP group queries and join messages You can start IGMP using the BCC or Site Manager Note If you plan to start DVMRP MOSPF or PIM using Site Manager go to the appropriate section in this chapter Site Manager automatically enables IGMP when you configure DVMRP MOSPF or PIM Using the BCC To start IGMP on an interface with default values navigate to the IP interface prompt for example box ethernet 2 2 ip 1 2 3 4 255 255 255 0 and enter igmp ip 1 2 3 4 255 255 255 0 igmp igmp 1 2 3 4 Using Site Manager When you configure any multicast protocol described in this guide DVMRP MOSPF or PIM Site Manager automatically configures IGMP on the slot and circuit To start IGMP on a router interface that does not have another multicast protocol configured 1 Configure a circuit on a slot and connector 2 Configure an IP interface on the circuit 3 Add
159. d for this purpose 224 0 1 32 S Print a short form report including only the multicast path not the packet rate and loss statistics continued 117355 D Rev 00 Troubleshooting Commands Table B 1 mtrace Options continued Option Meaning S lt statint gt Change the interval between statistics gathering traces to the specified number of seconds The default value is 10 seconds t lt ttl gt Set the time to live TTL for multicast trace queries and responses to the value you specify TTL equals the number of hops The default ft value is 127 hops For local queries to the all queries multicast group the default is one hop U Always request the response using unicast rather than attempting multicast first V Use verbose mode In verbose mode mtrace shows hop times on the initial trace and statistics display as well as the route that was used to forward the initial trace w lt wait gt Set the time to wait for a trace response to the number of seconds you specify The default wait value is 3 seconds source is the source of the multicast tree destination is the receiver for a particular multicast group group is a multicast group The default group is 224 2 0 1 If you do not specify a group the mtrace command does not display statistics For example the following mtrace command specifies source 192 32 27 193 destination 192 32 199 162 and group 224 2 0 1
160. ddress 192 31 27 85 mask 255 255 255 0 match range To advertise a network that is not in the DVMRP routing table navigate to the DVMRP announce policy prompt and enter the following commands announce dvmrppoll dvmrp modify modify dvmrp announce dvmrppoll advertise address 199 234 64 89 mask 255 255 255 0 advertise 199 234 64 89 255 255 255 0 modify dvmrp announce dvmrppoll To set a precedence or metric other than the default follow these examples announce dvmrppol2 dvmrp precedence 3 announce dvmrppol2 dvmrp metric 4 To drop advertisements from the tunnels networks or interfaces that match the DVMRP announce policy dvmrppol2 set the action parameter as follows box ip dvmrp announce dvmrppol2 announce dvmrppol2 dvmrp action ignore 117355 D Rev 00 4 81 Configuring IP Multicasting and Multimedia Services Using Site Manager To create or customize a DVMRP announce policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose DVMRP The DVMRP Policies menu opens 5 Choose Announce Policies The DVMRP Announce Policy Filters window opens 6 Click on Add The DVMRP Announce IP Policy Filter Configuration window opens 7 Set the following parameters Name Action Rule
161. ds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens Set the Enable parameter Click on Help or see the parameter description on page A 56 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 7 7 Configuring IP Multicasting and Multimedia Services Setting the RSVP Default Refresh Timer RSVP sends periodic refresh messages to maintain the state along a reserved path Without periodic refreshment the state automatically times out The refresh timer interval is expressed in hundredths of a second By default the RSVP refresh timer is set to 3000 hundredths of a second 30 seconds To set the refresh timer for an interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens Set the Refresh Interval parameter Click on Help or see the parameter description on page A 57 Click on Apply and then click on Done You return to the Configuration Manager w
162. dsaansinv aussie aaadneniNean seen teaaonebes A 2 DYNRAP menace PANAMIGIENS isurien aiaa AE aiae NA ASDA aA SA A 7 DYMRP Tonne Parame lers cser aa a a A 12 ONP PIMA ornina a saielacidpeinini ae A 17 IGMP Global Configuration Parameters s rere penned A 17 IGMP Statio Host Parameters ckcccd ccs cane edack tancepcie concede sacecegncae cemiedcascendeeecansdaked caaecane A 21 IGMP Interlace Parameters iss veces ves cveironsadveinused esaii aan aaae aE A 22 IP Configuration Parameters ET A ere ARR AT ee Faon uraa A 26 Resource Manager Fear ea US srneneissnimaiiii i A 28 OSPF Parameters for Multicast Extensions ccscccesceseceeeseeeeeeeeeceeeeeeeesaeenaeeeaaes A 35 TSS GODA PAT NS oepa aoee radeesdiscandeniaiasedeeitiacans A 35 OSPF Interface Parameters isssisonsscinedrsaninvaranncianecacensinedionn vin aaaniiadenn a A 37 PIM ParametorS saines iaiia ET EE T EEE PAFAT an PPO PIM Global Ceolicuaten Raranniors ee ee ee ee ee A 37 PIM Intenace Parameters ciccsscsiiractaucana ns saenieiennceotemnnanieiau ae ented A 51 RSVP Parameters E E EA mosu PE PET aoni PEE E P E A 54 RSVP Global Parameters AIEA AE AE E AEN E OO RSYP Interlace Parameters osssiisoiareuser nerenin AAEE ENN A 56 Mulicast Policy ParametetS cc sicivccccsnitsccavemsntcaconiescevesmutrceirenbeveasnemtueconie aa A 59 DVMRP Unicast Accept Policy Parameters ccceeeeseceeeeeeeeeeeeeseeeeeeeeeeenees A 59 DVMRP Accept Policy Parameters
163. e DVMRP Tunnel Parameters window 4 52 117355 D Rev 00 Disabling and Reenabling a DVMRP Tunnel Customizing DVMRP When you configure a DVMRP tunnel on an interface the tunnel is enabled by default You can use the BCC or Site Manager to disable and reenable the tunnel Using the BCC To disable or reenable a tunnel navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter state lt state gt state is one of the following enabled default disabled For example the following command disables DVMRP tunnel 2 3 4 5 4 4 2 3 dvmrp 2 3 4 5 4 4 2 3 state disabled dvmrp 2 3 4 5 4 4 2 3 Using Site Manager To disable and reenable a DVMRP tunnel complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Enable parameter Click on Help or see the parameter description on page A 12 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 53 Configuring IP Multicasting and Multimedia Services Specifying the Encapsulation Mode for Tunneled Datagrams By default DVMRP encapsulates a tunneled multicast d
164. e DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Forward Cache TTL parameter Click on Help or see the parameter description on page A 9 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 41 Configuring IP Multicasting and Multimedia Services Disabling Advertisement of Local Networks By default DVMRP advertises its own local networks over this interface Using the BCC or Site Manager you can configure DVMRP so that it does not advertise local networks over the interface Using the BCC To disable the advertisement of local networks navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter advertise self lt siate gt state is one of the following enabled default disabled For example the following command prevents DVMRP from advertising routes to its own local networks over IP interface 2 3 4 5 dvmrp 2 3 4 5 advertise self disabled dvmrp 2 3 4 5 4 42 117355 D Rev 00 Using Site Manager Customizing DVMRP To disable the advertisement of local networks complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Circuit T
165. e DVMRP unicast accept policy to advertisements that IP address arrive on any interface use the default null Otherwise this parameter specifies the IP address of an interface that can receive DVMRP unicast updates to accept or ignore metric 1 d through 31 Specifies the cost of the route that DVMRP injects into the DVMRP routing table network address mask Specifies the networks that match this policy and whether you match exact match want the match to be exact or a range range match exact means match the specific network advertisement number and mask match range means match any network number that falls in the range indicated by the IP address and mask precedence 0 d through Specifies a metric that DVMRP uses to compare this policy to 2 147 483 647 other policies that match the route DVMRP uses the precedence value to choose among multiple matches In ranking policies according to precedence keep in mind that the route with the highest value is the preferred route In case of a tie the most recent route wins continued 4 70 117355 D Rev 00 Table 4 4 Customizing DVMRP DVMRP Unicast Accept Policy BCC Parameters continued Parameter Values d default Description preference type 0 d through 16 Specifies a value that DVMRP uses to compare the injected route to an existing route in the DVMRP routing table higher preferred This parameter has meaning only if the action is set to accept I
166. e Global 5 Set the following parameters Candidate RP Candidate RP IP Address e Candidate RP Priority Candidate RP Group Mask Candidate RP Advertise Interval Candidate RP Register Cache Timeout Click on Help or see the parameter descriptions beginning on A 43 The PIM Global Configuration window opens 6 Click on OK You return to the Configuration Manager window 6 26 117355 D Rev 00 Customizing Protocol Independent Multicast Setting the Register Suppression Timer The RP sends a register stop message when it receives native multicast packets from the DR and there are no downstream routers receivers to forward these packets to The source s DR stops the outgoing interface from sending further register packets and sets its register suppression timer The register suppression timer determines how long the DR waits before sending register messages back to the RP The register suppression timer times out when the source s DR no longer receives any register stop messages during the timeout period The source s DR then reenables the outgoing interface so that it can send future register packets to the RP By default PIM sets the register suppression timer to 60 seconds You can set the value from 5 through 65 535 seconds 18 hours 12 minutes and 15 seconds To set the register suppression timer complete the following tasks Site Manager Procedure You do this System
167. e IGMP Relay interface is configured on one of the following types of interface e A downstream interface connecting the IGMP Relay device to IGMP hosts the default e An upstream interface connecting the IGMP Relay device to the primary IP multicast router e An upstream interface connecting the IGMP Relay device to the backup IP multicast router You can use the BCC or Site Manager to specify the interface type 117355 D Rev 00 9 13 Configuring IP Multicasting and Multimedia Services Using the BCC To specify the IGMP Relay interface type navigate to the IGMP Relay interface prompt for example box ethernet 2 2 ip 2 2 2 2 255 255 0 0 igmp relay and enter type lt iype gt type is one of the values listed in Table 9 2 Table 9 2 IGMP Relay Interface Types Interface Type Meaning downstream default Downstream interface connecting IGMP Relay to IGMP hosts upstream primary Upstream interface connecting IGMP Relay to the primary IP multicast router upstream backup Upstream interface connecting IGMP Relay to the backup IP multicast router For example the following command sequence invokes the IGMP prompt for IP interface 2 2 2 2 and specifies that the interface is the upstream interface to the primary IP multicast router igmp 2 2 2 2 1 relay relay 2 2 2 2 1 type upstream primary relay 2 2 2 2 1 117355 D Rev 00 Using Site Manager Configuring IGMP Relay To specify
168. e IP traffic filters see Configuring Traffic Filters and Protocol Prioritization Receiving and Forwarding Multicast Traffic If the multicast traffic is received on a DVMRP interface then DVMRP can forward the packets on either e An outbound interface configured with a multicast protocol such as DVMRP based on the multicast protocol routing table and any enabled policies e Anonmulticast IGMP static configured outbound interface To send multicast packets out on a nonmulticast interface you must set the IGMP static forwarding policy to dynamic to static mode for that interface If the multicast traffic is received on a nonmulticast static configured interface set the IGMP static forwarding policy to static to dynamic mode and specify the static incoming interface to receive the traffic You will also need to configure a DVMRP unicast accept policy with the appropriate network address information to inject into the DVMRP routing table To configure an IGMP static forwarding policy see Configuring IGMP Static Forwarding Policies on page 3 33 To configure a DVMRP unicast accept policy see Configuring DVMRP Unicast Accept Route Policies on page 4 69 4 32 117355 D Rev 00 Customizing DVMRP Disabling and Reenabling Multicast Support By default DVMRP does the following e Propagates multicast routing information on the interface e Incorporates in routing updates information about the source ne
169. e Manager Procedure You do this System responds 1 In the Configuration Manager window click on a connector configured with IGMP The Edit Connector window opens 2 Choose Edit Circuit The Circuit Definition window opens 3 Choose Protocols The Protocols menu opens 4 Choose Add Delete The Select Protocols window opens 5 Click on IGMP IGMP Relay Site Manager deselects IGMP 6 Click on OK You return to the Circuit Definition window 7 Choose File The File menu opens 8 Choose Exit You return to the Configuration Manager window 117355 D Rev 00 3 39 Chapter 4 Customizing DVMRP This chapter describes the Distance Vector Multicast Routing Protocol DVMRP and how to customize it on your router Topic Page DVMRP Concepts and Terminology 4 2 Customizing DVMRP Globally 4 8 Customizing DVMRP on an Interface 4 30 Configuring a DVMRP Tunnel 4 50 Configuring DVMRP Policies 4 69 Deleting DVMRP 4 84 117355 D Rev 00 4 1 Configuring IP Multicasting and Multimedia Services DVMRP Concepts and Terminology DVMRP is a multicasting protocol that provides a mechanism for routers to propagate multicast datagrams in a manner that minimizes the number of excess copies sent to any particular network This section covers the following topics Topic Page Neighbor Connections 4 2 Source Route Adv
170. e Manager to supply these addresses Using the BCC To supply addresses for a tunnel navigate to the root prompt box or stack and enter tunnels The tunnels prompt appears Enter the following command dvmrp local lt ocal_ip_address gt remote lt remote_ip_address gt local_ip_adadress is the unicast IP address of an interface on this router remote_ip_adadress is the unicast IP address of an interface on the remote DVMRYP router For example the following command configures a DVMRP unicast tunnel The local end point of the tunnel is unicast IP interface 2 2 2 2 The remote end point of the tunnel is unicast IP interface 2 2 4 5 box tunnels tunnels dvmrp local 2 2 2 2 remote 2 2 4 5 dvmrp 2 2 2 2 2 2 4 5 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Using Site Manager To supply addresses for a tunnel complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Tunnel The DVMRP menu opens The DVMRP Tunnel Parameters window opens Click on Add The DVMRP Tunnel Address window opens Set the following parameters e Local IP Address e Remote IP Address Click on Help or see the parameter descriptions beginning on page A 16 Click on OK You return to th
171. e position of the policy in the list indicates the index value from lowest to highest Use this parameter to assign precedence to policies that match the same route 1 3 6 1 4 1 18 3 5 3 2 6 11 1 8 Groups Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies An empty list Leave empty or specify one or more groups Identifies which groups match this policy If you want this filter to match any group do not specify a value for this parameter To match specific groups enter group number and group mask combinations as follows First 4 octets group number Next 4 octets group mask 1 3 6 1 4 1 18 3 5 3 2 6 11 1 10 A 78 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Receivers Circuits Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Group Policies An empty list Leave empty or specify one or more 2 octet circuit numbers Identifies which circuits match this policy If you want this filter to match any circuit do not specify a value for this parameter If you want this filter to apply to specific circuits enter the circuit numbers in 2 octet strings 1 3 6 1 4 1 18 3 5 3 2 6 11 1 11 Receivers Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt
172. e update from the original neighbor before switching to a different neighbor advertising equal cost for this route By default DVMRP waits 140 seconds 2 minutes 20 seconds You can use the BCC or Site Manager to specify a value from 20 through 2000 seconds 33 minutes 20 seconds If the neighbor is running DVMRP mrouted you should accept the default value 140 seconds Using the BCC To reset the route switch interval navigate to the global DVMRP prompt for example box ip dvmrp and enter switch timeout lt seconds gt seconds is an integer from 20 through 2000 indicating the number of seconds For example the following command sets the route switch interval to 120 seconds dvmrp Switch timeout 120 dvmrp 117355 D Rev 00 4 23 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify the route switch interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Route Switch Timeout parameter Click on Help or see the parameter description on page A 6 6 Click on Save You return to the Configuration Manager window 4 24 117355 D Rev 00 Customizing DVMRP Estimating the Nu
173. eduling if you want to use the Resource Reservation Protocol RSVP to control admission of flows to the network but do not want to explicitly schedule each flow s packets 1 3 6 1 4 1 18 3 5 16 2 1 3 1 5 117355 D Rev 00 A 29 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Policing Algorithm Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources Leaky Bucket None Leaky Bucket Specifies whether or not to use the leaky bucket policing algorithm for reserved traffic With leaky bucket policing the Resource Manager makes sure that all RSVP packets using reserved bandwidth follow the flowspec that appears in the RSVP connect request The Resource Manager discards any packets that do not adhere to the flowspec Note that such policing requires additional processing by the router Select None to bypass policing if an upstream router is policing traffic or if the applications generating the reserved traffic consistently adhere to the flowspec and do not require policing Select Leaky Bucket to apply a leaky bucket policing algorithm to reserved traffic 1 3 6 1 4 1 18 3 5 16 2 1 3 1 6 Bandwidth Interval Secs Configuration Manager gt XCVR FDDI HSSI MCT1 or COM
174. eeees 4 41 Disabling Advertisement of Local Networks cc ccceceeeseceeeeeeeeeeceeeeeeesaeeneeeaes 4 42 Advertising a Default Route me E A E EE T ainra 4 44 Listening for a Detail ROUIGO ensnonsnana test 4 46 Accepting Reports from Standard DVMRP Neighbors Only re Serre tt 4 47 Specifying the Lifetime of a Prune Message ccecccceeeeeeeeeeeeeeeaeeeseneeeteaeeeeeneees 4 49 Goniguring a DYMRE IMEI siiani aaa enepennre ree rnp Teer terre rer sete 4 50 Supplying Addresses re rere rc rarer PAT EO mS PE 4 54 Disabling and Reenabling a DVMRP Tunnel A E E E E T 4 53 Specifying the Encapsulation Mode for Tunneled Datagrams ccceseeeeees 4 54 Specifying the Cost ceeeeeeeee ainat ere onat ET atie T bapi 4 56 Srecno a TMe NG a A N 4 57 Configuring a Forwarding Table ciscississcsrieseiassismcseixindhiomanceiinenn denied 4 59 Specifying the Forwarding Table SIZE crccscssciccsetasctensaisaninssernasecsuiveessvareutonstentee 4 59 Specifying the Timeout for Cache Entries cccccceseceeeeeeeeeeeeeeeeeeeeeeseeees 4 60 Advertising a Default Route Cree tre eure rere T POON etree 462 Listening for a Dofault Roule ssicsccsscsavisadsaactycacddiivendleniniacivonevacmisiienvenisenieenaitinns 4 64 Specifying an Encapsulation Mode for Control Messages cscesseeeeeteeees 4 65 Accepting Reports from Standard DVMRP Neighbors Only ossee noha 4 66 Specifying the Lifetime of a P
175. eenable global RSVP as required 1 3 6 1 4 1 18 3 5 16 1 1 1 2 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Soloist Slots Configuration Manager gt Protocols gt IP gt RSVP gt Global All slots Slots 1 to 14 Specifies the slot or slots on which RSVP is eligible to run Select a slot or slots for global RSVP 1 3 6 1 4 1 18 3 5 16 1 1 1 4 Info Log Filter Configuration Manager gt Protocols gt IP gt RSVP gt Global 0 0 RSVP modules for which you want to log informational messages Enables or disables logging of informational messages for the specified RSVP modules To disable logging of RS VP informational messages accept the default value 0 To enable logging click on Values and select the RSVP modules for which you want to log informational messages 1 3 6 1 4 1 18 3 5 16 1 1 1 5 Debug Log Filter Configuration Manager gt Protocols gt IP gt RSVP gt Global 0 0 RSVP modules for which you want to log debug messages Enables or disables logging of debug messages for the specified RSVP modules To disable logging of RSVP debug messages accept the default value 0 To enable logging click on Values and select the RSVP modules for which you want to log de
176. eighbors only complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Report Depend Probe parameter Click on Help or see the parameter description on page A 11 6 Click on Apply and then click on Done You return to the Configuration Manager window 4 48 117355 D Rev 00 Customizing DVMRP Specifying the Lifetime of a Prune Message By default a prune message that DVMRP sends to a neighbor on this interface has a lifetime of 7200 seconds 2 hours You can use the BCC or Site Manager to specify a lifetime value from 0 through 86 400 seconds 24 hours Using the BCC To reset the lifetime of a prune message navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter prune lifetime lt seconds gt seconds is the lifetime of the prune message in seconds For example the following command sets the lifetime value to 5000 seconds 1 hour 23 minutes and 20 seconds for prune messages that DVMRP sends on IP interface 2 2 2 2 dvmrp 2 2 2 2 prune lifetime 5000 dvmrp 2 2 2 2 Using Site Manager To specify the lifetime of a prune message complete the following tasks Site M
177. ens 5 Set the Route Listen parameter Click on Help or see the parameter description on page A 14 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 Customizing DVMRP Specifying an Encapsulation Mode for Control Messages To maintain backward compatibility with earlier versions of DVMRP you can configure the encapsulation mode for DVMRP control packets Using the BCC To reset the encapsulation mode for control packets navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter control encapsulation lt type gt type is one of the following native default ip in ip For example the following command specifies IP in IP control encapsulation for tunnel 2 2 2 2 4 4 3 2 tunnel 2 2 2 2 4 4 3 2 control encapsulation ip in ip tunnel 2 2 2 2 4 4 3 2 Using Site Manager To specify an encapsulation mode for control messages complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Control Message Mode parameter Click on Help or see the parameter description on page A 14 6 Click on Apply and then click on Done You return to t
178. ense agreement that may pertain to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproduction and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 Statement of Conditions In the interest of improving internal design operational function and or reliability Bay Networks Inc reserves the right to make changes to the products described in this document without notice Bay Networks Inc does not assume any liability that may occur due to the use or application of the product s or circuit layout s described herein Portions of the code in this software product may be Copyright 1988 Regents of the University of California All rights reserved Redistribution and use in source and binary forms of such portions are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation advertising materials and other materials related to such distribution and use acknowledge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMP
179. ept policy called dvmrppol3 dvmrp accept dvmrppol3 accept dvmrppol3 dvmrp To customize a DVMRP accept policy set one or more of the following parameters Table 4 5 Table 4 5 DVMRP Accept Policy BCC Parameters Parameter Values default d Description action accept d ignore Specifies whether to accept or ignore the interfaces or networks for a route that matches this policy e To import the matching route from the IP routing table to the DVMPP routing table use accept e If you do not want to import the matching route use ignore gateway list of IP addresses Specifies the addresses of one or more routers that can send null d DVMRP updates to this router If you configure a list this policy applies to DVMRP advertisements from the routers in the list To apply this policy to any router use the default null inject null d Specifies an IP network that DVMRP injects into the DVMRP list of IP addresses routing table in place of the advertised networks This parameter and masks has meaning only if the action is set to accept To inject the advertised network use the default null Use this parameter to insert an aggregate or default network along with the actual network continued 4 74 117355 D Rev 00 Customizing DVMRP Table 4 5 DVMRP Accept Policy BCC Parameters continued Parameter Values default d Description interface null d IP address To apply the DV
180. ept policy2 unicast accept policy2 dvmrp state disabled To reenable an existing unicast accept policy use state with a value of enabled Using Site Manager To disable or reenable a DVMRP unicast accept policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose DVMRP The DVMRP Policies menu opens 5 Choose Unicast Accept Policies The DVMRP Unicast Accept Route Policy Filters window opens 6 Select the name of the DVMRP unicast Your selection is highlighted accept policy that you want to disable or reenable 7 Set the Enable parameter Click on Help or see the parameter description on page A 59 8 Click on Done You return to the Configuration Manager window 117355 D Rev 00 4 73 Configuring IP Multicasting and Multimedia Services Configuring DVMRP Accept Policies A DVMRP accept policy applies to incoming advertisements To configure a DVMRP accept policy you can use either the BCC or Site Manager Using the BCC To create a DVMRP accept policy navigate to the global DVMRP prompt for example box ip dvmrp and enter accept lt po name gt lt polname gt is the name of the DVMRP accept policy For example the following command creates a DVMRP acc
181. er DVMRP announce policies 4 82 A 71 Advertise Self parameter DVMRP interface 4 43 A 10 announce policies DVMRP 4 79 ASBR autonomous system boundary router in multicasting 5 2 assert messages PIM 6 7 B Bandwidth Interval Secs parameter Line Resource Manager 8 8 A 30 border router BR in multicasting 5 2 boundary router ASBR in multicasting 5 2 117355 D Rev 00 Index C Cache Time Out parameter PIM interface 6 33 A 52 Candidate BSR Hash Mask Length parameter PIM global 6 25 A 43 Candidate BSR Interval parameter PIM global 6 25 A 42 Candidate BSR IP Address parameter PIM global 6 25 A 42 Candidate BSR parameter PIM global 6 25 A 41 Candidate BSR Priority parameter PIM global 6 25 A 42 Candidate RP Advertise Interval parameter PIM global 6 26 A 45 Candidate RP Group Mask parameter PIM global 6 26 A 45 Candidate RP IP Address parameter PIM global 6 26 A 44 Candidate RP parameter PIM global 6 26 A 43 Candidate RP Priority parameter PIM global 6 26 A 44 Candidate RP Register Cache Timeout parameter PIM global 6 26 A 46 Circuit List parameter IGMP boundary group 3 30 A 85 Circuit Name parameter IGMP static host 3 29 A 22 Cisco Compatible parameter PIM global 6 29 A 47 Control Message Mode parameter DVMRP tunnel 4 65 A 14 conventions text xx cost of a route defined 4 10 customer support xxiv
182. er menu path Default setting Valid parameter options Parameter function Instructions for setting the parameter Management information base MIB object ID 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services The Technician Interface allows you to modify parameters by issuing set and commit commands with the MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the Technician Interface to access the MIB see Using Technician Interface Software z Caution The Technician Interface does not verify the validity of the parameter values that you enter Entering an invalid value can corrupt your configuration DVMRP Parameters Topic Page DVMRP Global Parameters A2 DVMPP Interface Parameters A 7 DVMRP Tunnel Parameters A 12 DVMRP Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt DVMRP gt Global Enable Enable Disable Enables and disables DVMRP support on the router To disable DVMRP after you configure it on the router specify Disable 1 3 6 1 4 1 18 3 5 3 12 1 2 A 2 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Fu
183. erfaces window opens 5 Set the Multicast Forwarding parameter Click on Help or see the parameter description on page A 37 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 5 9 Configuring IP Multicasting and Multimedia Services Configuring Multicast Capable External Routes By default all external routes are multicast incapable The Multicast Downstream IGMP Relay parameter allows you to configure an external route as multicast capable If an MOSPF router works as an AS boundary router to support IGMP Relay you must set this parameter to Enable Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose OSPF MOSPF 4 Choose Global The OSPF menu opens The Edit OSPF Global Parameters window opens Set the Multicast Downstream IGMP Relay parameter Click on Help or see the parameter description on page A 36 Click on OK You return to the Configuration Manager window 5 10 117355 D Rev 00 Customizing OSPF Multicast Extensions Configuring MOSPF Accept DVMRP Route Policies Use MOSPF accept DVMRP route policies to import DVMRP routes as multicast ASE routes When connecting an MOSPF domain to an MBone implementation via DVMRP keep the OSPF database small by configu
184. ertisements 4 4 How DVMRP Chooses a Route 4 5 Routing Table 4 6 Shortest Path Trees 4 6 Tree Pruning 4 7 Neighbor Connections In a DVMRP environment neighbors are multicasting routers that are connected directly or through a tunnel e Directly connected neighbors are routers that have an interface to the same network e Tumnel connected neighbors are multicast routers that communicate through a unicast network exchanging DV MRP messages that are encapsulated in IP datagrams In Figure 4 1 for example multicast router A has two neighbors router B and router C Router A and router B are connected directly they both have interfaces to net 6 Router A and router C communicate through a tunnel that includes a unicast router 4 2 117355 D Rev 00 Customizing DVMRP Net 6 Net 3 q _ Net 2 c2 Net 8 d2 Multicast router Unicast router Multicast host Multicast circuit Tunnel TPO0031A Figure 4 1 Multicast Routers 117355 D Rev 00 4 3 Configuring IP Multicasting and Multimedia Services At startup a DVMRP multicast router 1 Initializes its routing table with information about all of its local networks 2 Learns the existence of its neighbors by sending a probe for all routes on each of its multicast interfaces 3 Receives reports from its neighbors containing the
185. es and the DR for the receiver sends join prune messages Typically multicast groups that consist of a large number of low data rate sources use shared trees to conserve network resources A source discovery advertisement application is an example of a low data rate source Shortest Path Trees In general the shared tree provides an efficient method of forwarding multicast traffic from the source to receivers in a PIM domain However when the source begins to send multicast traffic at a high rate the router can switch from the shared tree to a shortest path tree SPT to create a more direct route between itself and the source You use SPTs when you want sources and receivers to distribute data at a high rate Typically multicast groups that consist of a large number of high data rate sources use SPTs For more information see How the RP Switches to the Shortest Path Tree on page 6 15 and How the Last Hop Router Switches to the Shortest Path Tree on page 6 17 6 8 117355 D Rev 00 Customizing Protocol Independent Multicast Figure 6 2 shows a shared tree and a shortest path tree Source S LAN Ey DR Shared tree gf path Shortest path F tree SPT uf 4 R W RP uo uo Receiver
186. eter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Route Supply Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel Enable Enable Disable Generate Supplies the default route 0 0 0 0 on this interface Enable this feature if you want DVMRP to advertise a default route on this tunnel interface To generate a default route specify Generate 1 3 6 1 4 1 18 3 5 3 12 3 1 25 Route Listen Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel Enable Enable Disable Receives the default route 0 0 0 0 on this interface Enable this feature if you want DVMRP to listen for a default route on this interface 1 3 6 1 4 1 18 3 5 3 12 3 1 26 Control Message Mode Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel Noencaps Encaps Noencaps Specifies the encapsulation mode for IGMP control packets Noencaps causes IGMP to send control messages in regular IGMP packets with the IP protocol type set to IP_PROTOCOL_IGMP Encaps causes IGMP to encapsulate control messages inside IP packets with the IP protocol type set to IP_PROTOCOL_IPINIP All DVMRP messages sent across tunnels will be encapsulated in the same way as data packets in this mode Select an encapsulation mode for control messages 1 3 6 1 4 1 18 3 5 3 12 3 1 27 117355 D Rev 00 Parameter Path Defa
187. example the following command sets the Mtrace cache entry lifetime to 60 seconds igmp 2 2 2 2 3 mtrace lifetime 60 igmp 2 2 2 2 3 3 26 117355 D Rev 00 Configuring and Customizing IGMP Using Site Manager To specify the lifetime of an Mtrace cache entry complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Mtrace Entry Lifetime parameter Click on Help or see the parameter description on page A 24 6 Click on Apply and then click on Done You return to the Configuration Manager window Specifying the Static Forward Cache Lifetime The static forwarding cache lifetime is the number of seconds that the Multicast Table Manager MTM keeps entries in its cache The default value is 216 seconds 3 minutes 36 seconds When you configure an IGMP static forwarding policy to accept multicast traffic on a nonmulticast interface and then forward it out a multicast interface static to dynamic forwarding mode you must modify the static forward cache lifetime on the inbound static interface based on the outbound multicast protocol configured on the outbound interface You can set this value from 80 through 7200 seconds based
188. f the injected unicast route is preferred set the preference to a higher number than the value of the existing route A route learned from a DVMRP network always has a preference of 1 best route d OSPF Specifies whether the route used is best route OSPF or both both Examples To specify a network address that must match the DVMRP policy navigate to the DVMRP unicast accept policy prompt and enter the following commands unicast accept dvmrppol2 dvmrp match match dvmrp unicast accept dvmrppol2 network address 192 31 27 85 mask 255 255 255 0 match exact network 192 31 27 85 255 255 255 0 exact dvmrp unicast accept dvmrppol2 To inject a different network into the DVMRP routing table navigate to the DVMRP unicast accept policy prompt and enter the following commands unicast accept dvmrppoll dvmrp modify modify dvmrp unicast accept dvmrppoll inject address 199 234 64 89 mask 255 255 255 0 inject 199 234 64 89 255 255 255 0 dvmrp unicast accept dvmrppoll To set a precedence preference metric or type other than the default follow these examples unicast accept dvmrppol2 dvmrp precedence 3 unicast accept dvmrppol2 dvmrp preference 8 unicast accept dvmrppol2 dvmrp metric 4 unicast accept dvmrpol2 dvmrp type ospf 117355 D Rev 00 4 71 Configuring IP Multicasting and Multimedia Services To ignore a route or interface that matches the DVMRP unicast accept policy dvmrppol2 set the action paramete
189. f time between triggered updates Triggered updates are sent when routing information changes Issuing a full update restarts the triggered update timer Therefore the triggered update interval must be shorter than the full update interval Using the BCC Specifying the Full Update Interval To specify the full update interval navigate to the global DVMRP prompt for example stack ip dvmrp and enter full update interval lt seconds gt seconds is an integer representing the number of seconds in the interval The default value is 60 For example the following command specifies a full update interval of 120 seconds dvmrp full update interval 120 dvmrp 4 10 117355 D Rev 00 Customizing DVMRP Specifying the Triggered Update Interval To specify the triggered update interval navigate to the global DV MRP prompt and enter triggered update interval lt seconds gt seconds is an integer representing the number of seconds in the interval The default value is 5 For example the following command specifies a triggered update interval of 10 seconds dvmrp triggered update interval 10 dvmrp Using Site Manager To set the full update and triggered update intervals complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMR
190. fault accept For example the following command causes IGMP to accept join and leave messages from nonlocal networks igmp ignore nonlocal report accept igmp Using Site Manager To specify the way IGMP handles nonlocal reports complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens 5 Set the Nonlocal Reports parameter Click on Help or see the parameter description on page A 20 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 Configuring and Customizing IGMP Customizing IGMP on an Interface When you add IGMP to an IP interface IGMP is enabled with default values for all interface parameters You customize IGMP on the interface by modifying parameters as described under the following topics Topic Page Enabling and Disabling IGMP on an Interface 3 16 Specifying Query Suppression 3 17 Specifying a Query Rate 3 19 Specifying a Membership Timeout Interval 3 21 Specifying a Designated Router Timeout Interval 3 22 Specifying a Maximum Host Response Time 3 24 Specifying the Lifetime of an Mtrace Cache Entry 3 26 Specifying the Static Forward Cache
191. fault Join Prune Interval parameter Set to Disable if you want the PIM router to use the join prune interval specified using the Join Prune Interval parameter on this interface 1 3 6 1 4 1 18 3 5 3 14 2 1 10 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Join Prune Interval Configuration Manager gt Protocols gt IP gt PIM gt Interface 60 1 to 65 535 seconds Specifies the time period in seconds at which the PIM router sends periodic join prune messages on this PIM interface This interval takes effect only if you disabled the Use Global Join Prune Interval parameter Determine the join prune interval that you require and specify a value from 1 through 65 535 seconds 18 hours 12 minutes and 15 seconds 1 3 6 1 4 1 18 3 5 3 14 2 1 11 Downstream IGMP Relay Configuration Manager gt Protocols gt IP gt PIM gt Interface Disable Enable Disable Indicates whether you want to enable or disable support for IGMP Relay on a downstream router Set to Enable to allow the PIM router to receive multicast data from a downstream router configured with IGMP Relay encapsulate the data within a register packet and send the packet to the elected RP in the PIM domain If you enable this parameter on a PIM interface you must configure all other PIM routers o
192. figure your network and which applications you use When multiple PIM routers are connected to a multiaccess LAN PIM elects the router with the highest priority as the DR for the LAN If two routers have equal priority then PIM elects the router with the higher IP address as the DR for the LAN Rendezvous Point RP Routers Within each domain PIM builds a shared tree to support a multicast group At the root of this shared tree is the rendezvous point RP where receivers meet new sources When a source wants to announce itself and send data to group members on the shared tree it sends a register message to the RP When a receiver wants to receive data for a group it sends a join message to the RP Depending on how you configure your PIM network an RP can be any PIM router that is physically close to one of the members of the group An RP can also be another PIM router in the network An RP is responsible for specific group prefixes For example if you have a network with three RPs then the group prefixes might be as follows e RPI is responsible for groups 224 0 0 0 through 227 255 255 255 e RP2 is responsible for groups 228 0 0 0 through 239 255 255 255 e RP3 is responsible for groups 224 0 0 0 through 239 255 255 255 You can configure multiple candidate RPs C RPs but only one RP can be active for each multicast group For information about configuring a router as an RP see Starting PIM on page 2 7 Candidate RP
193. for distribution down the shared tree The RP decapsulates each register message and forwards native multicast messages downstream to all members on the shared tree 2 Ifthe data rate of the source packet exceeds the data rate threshold configured on the RP the RP immediately sends a join message toward the DR of the source to establish a shortest path tree between itself and the source All intermediate routers along the path to the source add a new entry to their multicast forwarding tables for the new source group pair This entry establishes a delivery path that all intermediate routers can use to forward subsequent messages from the source to the RP 3 After the source s DR receives the join message from the RP it sends native multicast packets toward the RP on the shortest path tree 4 Upon receiving these multicast packets the RP immediately sends a register stop message to the DR and then forwards the multicast packets to all downstream group members For information about configuring an RP to switch to an SPT see Modifying the Rendezvous Point Threshold on page 6 21 117355 D Rev 00 6 15 Configuring IP Multicasting and Multimedia Services Figure 6 5 shows how the RP switches to the shortest path tree Source S m mi LAN A 1 l Register packets Native multicast packets VA Register stop
194. g on a tunnel 4 62 on an interface 4 44 default route listening for on a tunnel 4 64 on an interface 4 46 deleting from an interface 4 84 disabling globally 4 9 on a circuit 4 31 enabling globally 4 9 on a circuit 4 31 encapsulation mode 4 54 forwarding table size 4 39 IGMP Relay device configuring router for use with 9 20 local networks advertising 4 42 logging messages 4 29 messages logging event 4 29 neighbor routers accepting reports from via circuit 4 47 accepting reports from via tunnel 4 66 policies accept 4 74 announce 4 79 unicast accept 4 69 probe interval 4 21 117355 D Rev 00 DVMRP Distance Vector Multicast Routing Protocol continued reports from DVMRP neighbors via circuit 4 47 via tunnel 4 66 route costs defined 4 10 interface 4 35 tunnel 4 56 route switch interval 4 23 router capabilities displaying B 4 routes estimating number of 4 25 how DVMRP chooses 4 5 specifying maximum number of 4 27 shortest path tree 4 6 starting 2 4 tree pruning 4 7 tunnel addresses 4 51 tunnel threshold value of a 4 57 unicast accept policies 4 69 DVMRP Networks parameter MOSPF accept DVMRP route policies 5 11 A 74 E Enable parameter DVMRP accept policies 4 78 A 64 announce policies 4 83 A 69 circuit 4 31 A 7 global 4 9 A 2 tunnel 4 53 A 12 unicast accept policies 4 73 A 59 IGMP boundary group 3 31 A 84 global 3 5 A 17 group policies 3 33 A 76
195. g of these messages click on Values and select the PIM modules for which you want to log info warning messages The modules that you select are represented as bits values in the parameter field as follows 0x00000001 Bootstrap procedure 0x00000002 Hello procedure 0x00000004 Join prune send procedure 0x00000008 Registration procedure 0x00000010 Maintaining PIM route table 0x00000020 Assert procedure 0x00000040 Data forwarding tree switching 0x00000080 PIM main gate processing 0x00000100 PIM Cct gate general processing 0x00000200 PIM route change processing 0x00000400 PIM G processing 0x00000800 PIM pte oif timers 0x00002000 PIM PIM messages 0x00004000 PIM protocol messages first data 0x00008000 Join prune received 0x00010000 PIM utilities including timers MIB Object ID 1 3 6 1 4 1 18 3 5 3 14 1 4 A 48 117355 D Rev 00 Site Manager Parameters Parameter Debug Path Configuration Manager gt Protocols gt IP gt PIM gt Global Default 0 Options 0 PIM modules for which you want to log PIM debug messages Function Enables or disables the logging of PIM debugging messages on the PIM router Instructions To disable logging of PIM debug messages accept the default value 0 To enable logging of these messages click on Values and select the PIM modules for which you want to log debug messages The modules that you select are represented as bits values in the parameter
196. g on the router with default values for all parameters IGMP is also automatically enabled Starting PIM This section describes how to create a basic PIM configuration by specifying values for required parameters only and accepting defaults values for all other parameters For an introduction to PIM see PIM Concepts and Terminology on page 6 2 Configuration Prerequisites Before you can configure PIM on a router you must configure the router as follows Disable IGMP Relay on the router on which you want to configure PIM PIM and IGMP Relay cannot be configured on the same router For instructions on how to disable IGMP Relay see Enabling and Disabling IGMP Relay Globally on page 9 9 Delete DVMRP and MOSPF from the interface on which you want to configure PIM PIM DVMRP and MOSPF cannot be configured on the same interface Configure a unicast protocol RIP or OSPF on the same interface on which you want to configure PIM PIM requires a unicast protocol to propagate multicast traffic within the network For information about configuring unicast protocols see Configuring IP ARP RIP and OSPF Services 117355 D Rev 00 2 7 Configuring IP Multicasting and Multimedia Services Starting PIM on the Router To start PIM on the router Configure a circuit on a slot and connector Configure an IP interface on the circuit Configure a router to act as a bootstrap router 1 2 3 Add PIM to the
197. gister suppression timer unless it is restarted by receiving a register stop message Specify a value of 0 to prevent the first hop router from sending a probe packet to the RP If you specify a value greater than 0 it must be less than the register suppression timeout value otherwise it does not take effect The highest allowable value 65 535 seconds is equal to 18 hours 12 minutes and 15 seconds 1 3 6 1 4 1 18 3 5 3 14 1 34 Cisco Compatible Configuration Manager gt Protocols gt IP gt PIM gt Global Disable Enable Disable Allows Bay Networks routers to interoperate with Cisco routers running a nonstandard PIM implementation By default this parameter is disabled to ensure that Bay Networks routers comply with the standard PIM specification defined in RFC 2362 To allow Bay Network routers to interoperate with Cisco routers configured with a nonstandard implementation of PIM set this parameter to Enable 1 3 6 1 4 1 18 3 5 3 14 1 35 117355 D Rev 00 A 47 Configuring IP Multicasting and Multimedia Services Parameter Info Warnings Path Configuration Manager gt Protocols gt IP gt PIM gt Global Default 0 Options 0 PIM modules for which you want to log info warning messages Function Enables or disables the logging of PIM informational and warning messages on the PIM router Instructions To disable logging of PIM informational and warning messages accept the default value 0 To enable loggin
198. gmp relay and enter fwd timeout lt seconds gt seconds is the timeout period for an entry in the multicast table For example the following command specifies a lifetime of 45 seconds for table entries relay fwd timeout 45 relay Using Site Manager To specify a timeout value for multicast table entries complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens 5 Set the Relay Forwarding Timeout parameter Click on Help or see the parameter description on page A 20 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 9 11 Configuring IP Multicasting and Multimedia Services Configuring Upstream Data Forwarding By default an IGMP Relay device connected to a primary and backup IP multicast router uses the primary upstream interface when both the primary and the backup interfaces are active When only one interface is active the IGMP Relay device always uses that interface You can use the BCC or Site Manager to specify which interface to use for upstream data forwarding Using the BCC To specify the upstream interfaces to use navigate to the global IGMP Relay prompt for example box ip igmp relay
199. grams If the IP TTL is less than the threshold value you specify the router drops the datagram Using the BCC To specify a threshold value navigate to a DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter threshold lt tti gt ttlis an integer from 1 the default through 254 For example the following command assigns a threshold TTL value of 15 to DVMRP tunnel 2 3 4 5 4 4 2 3 dvmrp 2 3 4 5 4 4 2 3 threshold 15 dvmrp 2 3 4 5 4 4 2 3 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify a threshold value complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Tunnel The DVMRP menu opens The DVMRP Tunnel Parameters window opens Set the Threshold parameter Click on Help or see the parameter description on page A 13 Click on Apply and then click on Done You return to the Configuration Manager window 4 58 117355 D Rev 00 Customizing DVMRP Configuring a Forwarding Table By default DVMRP preallocates a forwarding table or cache for 32 entries You can use the BCC or Site Manager to specify the maximum number of entries from 32 through 512 allowed in the forwarding table associated with this
200. h Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Multicast Extensions Configuration Manager gt Protocols gt IP gt OSPF MOSPF gt Global 0 0 no multicast forwarding is enabled 1 intra area multicasting only 3 intra area and inter area multicasting 5 intra area and inter AS multicasting 7 multicasting everywhere Enables OSPF multicast extensions and specifies the type of multicasting Click on Values and set the parameter as required 1 3 6 1 4 1 18 3 5 3 2 3 1 19 Multicast Timeout Value Configuration Manager gt Protocols gt IP gt OSPF MOSPF gt Global 600 An integer Specifies in seconds a timer value for timing out MOSPF entries in the forwarding table Use the default setting 600 seconds which is equal to 10 minutes 1 3 6 1 4 1 18 3 5 3 2 3 1 26 Multicast Max Queued Pkts Configuration Manager gt Protocols gt IP gt OSPF MOSPF gt Global 64 An integer indicating the number of packets Controls how many multicast packets OSPF can queue on each slot before it finishes calculating multicast trees If you specify 0 OSPF drops packets before the tree is calculated 1 3 6 1 4 1 18 3 5 3 2 3 1 27 117355 D Rev 00 A 35 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default
201. hat it is not located on the shortest network path to any remote network that includes a member of the group If any of these conditions are true the router sends a DVMRP prune message to its DVMRP neighbor The neighbor removes the router from its forwarding table If the host later rejoins the group the router sends the neighbor a DVMRP graft message The neighbor restores the router to its forwarding table 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Customizing DVMRP Globally When you start DVMRP on the router DVMRP runs with default values for all global parameters You customize DVMRP by modifying parameters as described under the following topics Topic Page Disabling and Reenabling DVMRP Globally 4 9 Setting the Update Interval 4 10 Disabling and Reenabling Tree Pruning 4 12 Setting the Route Expiration Timer 4 13 Setting the Unconfirmed Route Timer 4 15 Setting the Neighbor Report Timer 4 17 Setting the Leaf Timer 4 19 Specifying a Probe Interval 4 21 Specifying a Route Switch Interval 4 23 Estimating the Number of Routes 4 25 Specifying the Maximum Number of Routes 4 27 Logging DVMRP Messages 4 29 4 8 117355 D Rev 00 Disabling and Reenabling DVMRP Globally Customizing DVMRP You can use the BCC or Site Manager to disable and reenable DVMRP globally on the router Using the BCC To disab
202. he Configuration Manager window 117355 D Rev 00 4 65 Configuring IP Multicasting and Multimedia Services Accepting Reports from Standard DVMRP Neighbors Only A standard DVMRP router sends a probe message to a neighbor before it advertises a route report DVMRP uses the probe message to learn the neighbor s capability Some routers however send only route reports they do not send probes By default DVMRP accepts reports from standard and nonstandard DVMRP neighbors You can use the BCC or Site Manager to allow a DVMRP tunnel to communicate with standard DVMRP routers only Using the BCC To specify whether a DVMRP tunnel communicates with standard DVMRP routers only navigate toa DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter depend on probe lt siate gt state is one of the following enabled disabled default For example the following command configures DVMRP to communicate with standard DVMRP neighbors only on tunnel 2 2 2 2 4 4 3 2 tunnel 2 2 2 2 4 4 3 2 depend on probe enabled tunnel 2 2 2 2 4 4 3 2 4 66 117355 D Rev 00 Customizing DVMRP Using Site Manager To specify whether a DVMRP tunnel accepts reports from standard DV MRP neighbors only complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP
203. he DVMRP menu opens The DVMRP Circuit Parameters window opens 5 Set the Advertise Self parameter Click on Help or see the parameter description on page A 10 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 43 Configuring IP Multicasting and Multimedia Services Advertising a Default Route By default DVMRP advertises a default route on this router if one exists in the DVMRP routing table You can use the BCC or Site Manager to disable or reenable the advertising of the default route or to generate a default route as required Using the BCC To disable or reenable the advertisement of a default route or to enable the router to generate one navigate toa DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter default supply lt state gt state is one of the following enabled default disabled generate For example the following command causes DVMRP to generate a default route over IP interface 2 3 4 5 dvmrp 2 3 4 5 default supply generate dvmrp 2 3 4 5 4 44 117355 D Rev 00 Using Site Manager Customizing DVMRP To disable or reenable the advertisement of a default route or to enable the router to generate one complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols
204. hip queries to hosts on its attached local networks e Receives host membership reports and unsolicited join messages from hosts on its attached networks and forwards them to the attached multicast router e Forwards multicast data to group members on locally attached networks For more information about IGMP see Chapter 3 Configuring and Customizing IGMP 9 2 117355 D Rev 00 Configuring IGMP Relay IGMP Relay concepts terminology functions and components are discussed under the following topics Topic Page IGMP Relay Topology 9 3 How IGMP Relay Works 9 4 Unicast Routing Protocols on the IGMP Relay Device 9 8 Routing Protocols on the Multicast Router 9 8 IGMP Relay Topology An IGMP Relay device is located physically between the IGMP hosts and the IP multicast router it supports The hosts are considered to lie downstream of the IGMP Relay device the multicast router is upstream The upstream link to the IP multicast router can be a frame relay link or a dial connection For redundancy an IGMP Relay device can be connected on upstream links to two IP multicast routers a primary router and a backup router For example Figure 9 2 shows an IGMP Relay device with downstream interfaces to three networks containing IGMP hosts The IGMP Relay device also has an upstream interface to a primary IP multicast router and a second upstream interface to a backup IP multicast router on a dial up
205. hoose IP The IP menu opens 3 Choose DVMRP 4 Choose Global The DVMRP menu opens The DVMRP Global Configuration window opens Set the Max Routes parameter Click on Help or see the parameter description on page A 7 Click on Save You return to the Configuration Manager window 4 28 117355 D Rev 00 Customizing DVMRP Logging DVMRP Messages By default DVMRP does not log debugging messages You can use the BCC or Site Manager to enable message logging and to specify the level of debug messages Note however that you should specify a level only when directed by Customer Support personnel to investigate a problem Using the BCC To log DVMRP debugging messages navigate to the global DVMRP prompt for example stack ip dvmrp and enter debug log lt options gt options is one of the legal values for the command enter debug log to display these values For example the following command causes DVMRP to log all debugging messages dvmrp debug log all options dvmrp Using Site Manager To log debugging messages complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Debug Level parameter Cl
206. host B receive the query and listen on the network for a host membership report Host B s delay time expires first so it responds to the query with a membership report Hearing the response host A does not send a report of its own for the same group Each query from a router to a host includes a code field IGMP inserts a value n into this field specifying the maximum time in tenths of a second within which the host must issue a reply The host uses this value to calculate a random value between 0 and n tenths of a second for the period that it waits before sending a response If at least one host on the local network specifies that it is a member of a given group the router will forward to that network all datagrams bearing the group s multicast address Upon initialization the host may immediately issue a report for each of its supported multicast groups The router accepts and processes these asynchronous reports the same way it accepts requested reports Once in a steady state hosts and routers communicate in a way that minimizes the exchange of queries and reports Host Leave Messages When a Version 2 host leaves a group it issues a host leave message The multicast router on the network issues a group specific query to determine whether there are other group members on the network If no host responds to the query the router assumes that no members belonging to that group exist on that interface 117355 D Rev 00
207. ice onto the primary upstream interface the backup interface or both when both interfaces are active Select an option as required by your configuration 1 3 6 1 4 1 18 3 5 3 13 1 12 A 20 117355 D Rev 00 Site Manager Parameters IGMP Static Host Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Group Address Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Static Groups None A multicast address Specifies the multicast address for the group of which the host is a member Use the static group parameters to manually register the network on which the multicast group member resides Enter the multicast address for the group 1 3 6 1 4 1 18 3 5 3 13 4 1 3 Prefix Length Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Static Groups None The length of the address prefix Specifies the length of the prefix of the multicast group address Use the static group parameters to manually register the network on which the multicast group member resides Enter a value from 0 through 32 1 3 6 1 4 1 18 3 5 3 13 4 1 4 117355 D Rev 00 A 21 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Circuit Name Configuration Manager gt Protocols gt IP gt IGMP IGMP
208. ick on Help or see the parameter description on page A 6 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 4 29 Configuring IP Multicasting and Multimedia Services Customizing DVMRP on an Interface You customize DVMRP on an interface by modifying DVMRP parameters as described under the following topics Topic Page Disabling and Reenabling DVMRP on an Interface 4 31 Enabling Multicast Migration Between DVMRP and Nonmulticast Interfaces 4 32 Disabling and Reenabling Multicast Support 4 33 Calculating the Cost of an Interface 4 35 Specifying a Threshold 4 37 Configuring a Forwarding Table 4 39 Disabling Advertisement of Local Networks 4 42 Advertising a Default Route 4 44 Listening for a Default Route 4 46 Accepting Reports from Standard DVMRP Neighbors Only 4 47 Specifying the Lifetime of a Prune Message 4 49 4 30 117355 D Rev 00 Customizing DVMRP Disabling and Reenabling DVMRP on an Interface By default DVMRP is enabled on an interface You can use the BCC or Site Manager to disable and reenable it Using the BCC To disable or reenable DVMRP on an interface navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter state lt state gt state is one of the following enabled default disabled For example the following command disable
209. ies unless it has not heard of any queries within the number of seconds specified by the Designated Router Timeout parameter The maximum value 4096 seconds is equal to 1 hour 8 minutes and 16 seconds 1 3 6 1 4 1 18 3 5 3 13 2 1 5 Interface Membership Timeout Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 260 30 to 8192 seconds Specifies in seconds the amount of time that a local group membership is valid without the receipt of a subsequent report for that group The suggested value is 2 Interface Query Rate 20 The maximum value 8192 seconds is equal to 2 hours 16 minutes and 32 seconds 1 3 6 1 4 1 18 3 5 3 13 2 1 6 117355 D Rev 00 A 23 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Designated Router Timeout Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 140 10 to 8192 seconds Specifies in seconds the amount of time that can elapse after the last host query message before the IGMP designated router is considered down Set an approximate value This value should be greater than the query rate of all IGMP routers on the network The maximum value 8192 seconds is equal to
210. ifies the maximum number of unreserved best effort packets to be held in queue for transmission After the queue length reaches this value the router discards best effort traffic when congestion occurs Priority queuing limits if configured override the value of this parameter Change this value to adjust the queue length limit 1 3 6 1 4 1 18 3 5 16 2 1 3 1 10 Multiline Select Algorithm Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources First Fit First Fit Round Robin Specifies how the Resource Manager selects which line to use for a new resource request if you have the Resource Manager configured on a multiline circuit Set this parameter only if you configured the Resource Manager on a multiline circuit Select First Fit to always use the first available line that can service reserved traffic requests Select Round Robin to rotate the use of lines available to service requests All lines for a circuit must use the same algorithm If any one line on a circuit specifies First Fit all lines use the first fit algorithm 1 3 6 1 4 1 18 3 5 16 2 1 3 1 11 A 32 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Multiline Threshold Bandwidth Configuration Manager gt XC
211. iguration Manager gt Protocols gt IP gt PIM gt Global Enable Enable Disable Indicates whether the last hop router switches from the shared tree to a source specific shortest path tree The last hop router sets up a shortest path tree when the data rate for the group exceeds the configured traffic threshold rate specified using the Last Hop Data Threshold parameter Set to Enable if you want the last hop router to switch from a shared tree to a shortest path tree to the source of that data Set to Disable to prevent the last hop router from switching to the shortest path tree regardless of the traffic rate specified using the Last Hop Data Threshold parameter 1 3 6 1 4 1 18 3 5 3 14 1 9 Last Hop Data Threshold Configuration Manager gt Protocols gt IP gt PIM gt Global 2048 0 to 65 535 bytes per second Specifies the rate in bytes per second at which the last hop router receives data from the source If the data rate exceeds the threshold configured on the last hop router the last hop router switches to a shortest path tree Specify a data rate threshold from 0 through 64 to enable the last hop router to immediately switch to the shortest path tree upon receiving the first packet from the source Otherwise the data rate is averaged over the threshold sample interval and the switch is made based on this average 1 3 6 1 4 1 18 3 5 3 14 1 10 A 38 117355 D Rev 00 Parameter Path Default Options Function
212. iguration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Interface Membership Timeout parameter Click on Help or see the parameter description on page A 23 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 3 21 Configuring IP Multicasting and Multimedia Services Specifying a Designated Router Timeout Interval By default 140 seconds 2 minutes 20 seconds can elapse after the last host query message before IGMP considers the designated router to be down You can use the BCC or Site Manager to specify a router timeout interval from 10 through 8192 seconds 2 hours 16 minutes and 32 seconds The value you specify should be greater than the query rate of all IGMP routers on the network The suggested value is two times the value of the interface query rate plus 20 seconds Using the BCC To specify a designated router timeout interval navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter dr timeout lt seconds gt seconds is an interval from 10 through 8192 seconds For example the following command sets the router timeout interval to 200 seconds 3 minutes 20 seconds igmp 2 2 2 2 3 dr timeout 200 ig
213. indow 117355 D Rev 00 Configuring RSVP Setting the RSVP Default Lifetime Multiplier The lifetime multiplier is an integer that multiplies the TIME_VALUE object specified in a path or reserve message The resulting value indicates the amount of time that the router will hold the path or reserve state without receiving a refresh message for that state By default the lifetime multiplier is 3 To specify a different multiplier complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP 3 Choose RSVP The IP menu opens The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens Set the Refresh Multiple parameter Click on Help or see the parameter description on page A 57 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 7 9 Configuring IP Multicasting and Multimedia Services Setting the RSVP Refresh Blockade Multiplier By default an RSVP interface in the blockade state stays alive for four refresh intervals To change the refresh blockade multiplier complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The
214. ip reports and unsolicited join messages from hosts on its attached networks and forwards them to the attached multicast router e Forwards multicast data to group members on locally attached networks For instructions on configuring IGMP Relay see Chapter 9 Configuring IGMP Relay Multicast Table Manager The Bay Networks Multicast Table Manager MTM makes it possible for different multicast protocols to work together on the same router MTM does the following e Manages DVMRP and MOSPF e Provides multicast routing support for RSVP e Supports MOSPF special features e Supports multicast tools for tracing routes e Maintains a multicast forwarding cache e Forwards multicast traffic 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Multicast Migration You can enable the flow of multicast traffic over either multicast DVMRP or MOSPF or nonmulticast IGMP static router interfaces To enable the transfer of packets between multicast and nonmulticast networks you must create one or more of the following e IP traffic filters e IGMP static forwarding policies e Miulticast protocol policies DVMRP or MOSPF You must configure IGMP on any interface running a multicast protocol as well as on any Static interface over which you want to transfer multicast traffic You can also allow unicast packets to travel as multicast and multicast packets as unicast between multicast and nonmulticast networks
215. it Queue Limit Leaky Bucket Specifies the policing algorithm for unreserved traffic Select the Queue Limit option to restrict the number of buffers packets of unreserved traffic that the Resource Manager queues This method of policing enables unreserved traffic to use available reserved bandwidth The Unreserved Queue Length parameter specifies the maximum number of packets in the queue Select the Leaky Bucket option to cause the router to actively police the unreserved traffic based on the unreserved bandwidth This method does not allow unreserved traffic to take advantage of available reserved bandwidth If you enable priority queuing for this line the router uses the priority queue parameters to perform Queue Limit policing See Configuring Traffic Filters and Protocol Prioritization for information about priority queue parameters 1 3 6 1 4 1 18 3 5 16 2 1 3 1 9 117355 D Rev 00 A 31 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Unreserved Queue Length Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 20 0 to 214 748 364 packets limited by available buffers If the Unreserved Policing Algorithm parameter is set to Queue Limit this parameter spec
216. le B 4 Options TOF rsvp BURCOMMIANGS vvsccaissvorissteausrsatdusanesanvuassdosnateasamnadans B 6 117355 D Rev 00 xvii Preface This guide describes the following services and what you do to start and customize them on a Bay Networks router e Internet Group Management Protocol IGMP e Distance Vector Multicast Routing Protocol DVMRP e Multicasting extensions to OSPF MOSPF e Protocol Independent Multicast PIM e Resource Reservation Protocol RSVP You can use Site Manager to configure any of these services on a router You can also use the Bay Command Console BCC to configure IGMP and DVMRP In this guide you will find instructions for using both the BCC and Site Manager For instructions on how to start and use the BCC see Using the Bay Command Console BCC for instructions on how to start and use Site Manager see Configuring and Managing Routers with Site Manager Before You Begin Before using this guide you must complete the following procedures For a new router e Install the router see the installation guide that came with your router e Connect the router to the network and create a pilot configuration file see Quick Starting Routers Configuring BayStack Remote Access or Connecting ASN Routers to a Network Make sure that you are running the latest version of Bay Networks BayRS and Site Manager software For information about upgrading BayRS and Site Manager see the upgrading guide for
217. le or reenable DVMRP on the router navigate to the global DYMRP prompt for example box ip dvmrp and enter state lt state gt state is one of the following enabled default disabled For example the following command disables DVMRP on the router dvmrp state disabled dvmrp Using Site Manager To disable or reenable DVMRP complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Global The DVMRP Global Configuration window opens 5 Set the Enable parameter Click on Help or see the parameter description on page A 2 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 4 9 Configuring IP Multicasting and Multimedia Services Setting the Update Interval Periodically each multicasting router issues full or partial routing information on each DVMRP interface using DVMRP report messages This routing information represents the sending router s cost to reach the specified network The cost is the sum of the hop metrics along the shortest path to the given source network You can use the BCC or Site Manager to e Specify how often routing messages containing complete routing tables are sent e Specify the minimum amount o
218. led on any interface that you configure with DVMRP or MOSPF using Site Manager For instructions on starting IGMP on a router interface see Starting IGMP on page 2 2 Configure an IP traffic filter if you need to convert packets from unicast to broadcast or from broadcast to unicast You must also configure an IP traffic filter to convert packet data from multicast to unicast broadcast or from unicast broadcast to multicast To convert packets from unicast broadcast to multicast a multicast protocol must be running on the incoming interface For instructions on how to configure IP traffic filters see Configuring Traffic Filters and Protocol Prioritization Configure an IGMP static forwarding policy using Site Manager for the interfaces that are static nonmulticast or dynamic multicast For instructions see Configuring IGMP Static Forwarding Policies on page 3 33 Depending on whether the multicast protocol on your router interface is DVMRP or MOSPF e See Enabling Multicast Migration Between DVMRP and Nonmulticast Interfaces on page 4 32 e See Enabling Multicast Migration Between MOSPF and Nonmulticast Interfaces on page 5 8 You may need to set policy filters to identify acceptable gateways interfaces tunnels and networks for passing traffic using IGMP DVMRP and MOSPE For example you may need to specify an incoming network address to which a user defined multicast routing policy applies
219. lete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP 3 Choose RSVP The IP menu opens The RSVP menu opens 4 Choose Circuit The Edit RSVP Circuit Parameters window opens Set the Route Delay parameter Click on Help or see the parameter description on page A 58 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 Configuring RSVP Enabling and Disabling UDP Encapsulation By default RSVP uses UDP encapsulation on this interface only if it determines that a neighbor on the interface uses UDP encapsulation Enable this feature on the interface if manual configuration requires UDP encapsulation To enable and disable UDP encapsulation on the interface complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens Choose IP The IP menu opens 3 Choose RSVP The RSVP menu opens 4 Choose Circuit Set the Udp Required parameter Click on Help or see the parameter description on page A 58 The Edit RSVP Circuit Parameters window opens Click on Apply and then click on Done You return to the Configuration Manager window 1173
220. lowing events occur 1 The MOSPF boundary router receives a RIP advertisement from IGMP Relay and injects it into the MOSPF domain as an AS external route 2 The MOSPF boundary router receives IGMP host membership responses from IGMP Relay and floods group membership LSAs to other MOSPF routers in the domain 117355 D Rev 00 9 19 Configuring IP Multicasting and Multimedia Services Configuring a DVMRP Router for Use with IGMP Relay An IGMP Relay device can provide host registration services for a multicast router running DVMRP To configure a DVMRP router for use with an IGMP Relay device you must do the following e If the IGMP Relay device is running RIP on its upstream IP interface you must add RIP to the downstream IP interface on the multicast router RIP advertises its locally attached networks to the multicast router The multicast router stores the routes in its IP unicast routing table e If the IGMP Relay device is running OSPF on its upstream IP interface you must add OSPF to the downstream IP interface on the multicast router OSPF advertises its locally attached networks to the multicast router The multicast router stores the routes in its IP unicast routing table e If the IGMP Relay device is running no unicast routing protocol to advertise routes to its locally attached networks you must statically add the routes to the IP unicast routing table on the multicast router All three of these methods produce the s
221. lt Join Prune Interval for the Router The join prune interval is the interval in seconds at which each PIM interface configured on a local router sends join prune messages to its upstream neighbor in the PIM domain By default each PIM interface sends join prune messages every 60 seconds You can specify a value from 5 through 18 724 seconds 5 hours 12 minutes and 4 seconds To modify the join prune interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens continued 117355 D Rev 00 6 23 Configuring IP Multicasting and Multimedia Services Site Manager Procedure continued You do this System responds 5 Set the Default Join Prune Interval parameter Click on Help or see the parameter description on page A 40 6 Click on OK You return to the Configuration Manager window Modifying Neighbor Hello Messages By default the Hello messages sent by a PIM router to its neighbors contain a generation identifier The generation identifier is a random number that PIM appends to Hello messages This number remains static as long as the router is active A PIM router uses the generation identifie
222. lticast traffic and 2 IGMP is running on the interface Therefore on some interfaces for example point to point or nonbroadcast even though there is no need to run the IGMP protocol IGMP must still be configured On such interfaces you can disable the sending of IGMP queries 1 3 6 1 4 1 18 3 5 3 13 2 1 25 Static Forward Cache Lifetime Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces 216 80 to 7200 seconds If the IGMP static forwarding policy is set to Static to Dynamic static inbound and multicast protocol outbound specifies the number of seconds that the Multicast Table Manager cache entries will be alive for even if traffic is not present Set this value based on the multicast protocol that is configured on the outbound interface a typical value for DVMRP is 7200 seconds 2 hours and for MOSPF 600 seconds 10 minutes 1 3 6 1 4 1 18 3 5 3 13 2 1 28 117355 D Rev 00 A 25 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Relay Circuit Type Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Interfaces Downstream Primary Backup Downstream Specifies whether the IGMP circuit is configured as the primary upstream circuit the backup upstream circuit or a downstream circuit You c
223. lticast OSPF accept DVMRP route policies 5 11 configuring for IGMP Relay device 9 18 disabling globally 5 4 enabling globally 5 4 forwarding timeout value 5 5 multicasting support types of 5 3 overview 5 1 starting 2 6 timeout value 5 5 mrinfo command B 4 mtrace command 3 26 B 2 Mtrace Entry Lifetime parameter IGMP interface 3 27 A 24 Multicast Downstream IGMP Relay parameter OSPF MOSPF global 5 10 A 36 Multicast Dynamic TTL parameter OSPF MOSPF global 5 7 A 36 Multicast Extensions parameter OSPF MOSPF global 2 6 5 4 A 35 Multicast Forwarding parameter OSPF MOSPF global 5 9 A 37 Multicast Max Queued Pkts parameter OSPF MOSPF global 5 6 A 35 multicast migration tools 1 6 Multicast OSPF See MOSPF Multicast Table Manager 1 5 Multicast Timeout Value parameter OSPF MOSPF global 5 5 A 35 Index 6 multicasting addresses for 1 3 BCC show commands for 1 13 border router BR 5 2 boundary router ASBR 5 2 capabilities of DVMRP router displaying B 4 commands mrinfo B 4 mtrace B 2 rsvp B 5 comparing routes DVMRP 4 6 creating a shortest path tree DVMRP 4 6 definition of 1 2 host groups 1 2 internal router IR 5 2 leaf network DVMRP 4 7 migration 1 6 Multicast Table Manager 1 5 threshold 4 37 trace branch from source to receiver for multicast group B 2 tunnel DVMRP 4 2 types supported by MOSPF 5 3 Multiline Select Algorithm parameter line resources
224. mber of Routes By default DVMRP preallocates space for a routing table with 25 entries You can use the BCC or Site Manager to specify the number of entries 10 or more For an MBone multicast backbone implementation a value of 3000 or higher is recommended Note that routes are kept on a per source network basis independent of multicast groups This number must include a route for every network that is local to an interface configured for multicasting Exceeding this size during router operation will not cause an error but may cause the router to consume more memory than required Using the BCC To reset the number of entries in the routing table navigate to the global DVMRP prompt for example box ip dvmrp and enter estimated routes lt route gt route is an integer 10 or greater indicating the estimated number of entries needed in the routing table For example the following command causes DVMRP to preallocate space for a routing table with 50 entries dvmrp estimated routes 50 dvmrp 117355 D Rev 00 4 25 Configuring IP Multicasting and Multimedia Services Using Site Manager To preallocate the estimated number of routes complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Global The DVMRP menu o
225. mended values see Table 4 2 on page 4 35 You can use the BCC or Site Manager to specify a cost value from 1 through 31 Using the BCC To specify the cost of a tunnel navigate toa DVMRP tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter metric lt metric gt metric is an integer from 1 the default through 31 For example the following command assigns a cost of 15 to DVMRP tunnel 2 3 4 5 4 4 2 3 dvmrp 2 3 4 5 4 4 2 3 metric 15 dvmrp 2 3 4 5 4 4 2 3 Using Site Manager To specify the cost metric of a tunnel complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens Set the Metric parameter Click on Help or see the parameter description on page A 12 Click on Apply and then click on Done You return to the Configuration Manager window 4 56 117355 D Rev 00 Customizing DVMRP Specifying a Threshold By default DVMRP assigns a threshold value of 1 to a tunnel This value is the minimum IP TTL required for a multicast datagram to be forwarded out this tunnel You can use the BCC or Site Manager to assign a value from through 254 Use this value to control the scope of the data
226. meter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel Enable Enable Disable Enables or disables this tunnel Specify Disable to disable the tunnel 1 3 6 1 4 1 18 3 5 3 12 3 1 2 Encapsulation Mode Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel IP Datagram IP Datagram LSSR Option Specifies whether tunneled datagrams are encapsulated within an IP datagram or loosely encapsulated using the LSSR option See RFC 1075 for information about the LSSR option which is provided for backward compatibility 1 3 6 1 4 1 18 3 5 3 12 3 1 6 Metric Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel 1 1 to 31 Specifies the cost of this tunnel Determine the cost that you want to assign to this tunnel and enter a value Bay Networks recommends the following values for a LAN or tunnel across a single LAN 1 for a multihop tunnel 2 or 3 for a serial link or tunnel across a serial link 1 for a backup tunnel the primary tunnel metric 1 1 3 6 1 4 1 18 3 5 3 12 3 1 7 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function In
227. misuse or abuse The Licensee assumes all responsibility for selection of the Software to achieve Licensee s intended results and for the installation use and results obtained from the Software Bay Networks does not warrant a that the functions contained in the software will meet the Licensee s requirements b that the Software will operate in the hardware or software combinations that the Licensee may select c that the operation of the Software will be uninterrupted or error free or d that all defects in the operation of the Software will be corrected Bay Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release These warranties do not apply to the Software if it has been i altered except by Bay Networks or in accordance with its instructions ii used in conjunction with another vendor s product resulting in the defect or iii damaged by improper environment abuse misuse accident or negligence THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Licensee is responsible for the security of 117355 D Rev 00 iii its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files data or programs 4 Limitation of liability INNO EVENT WILL
228. mp 2 2 2 2 3 3 22 117355 D Rev 00 Configuring and Customizing IGMP Using Site Manager To specify a designated router timeout interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Designated Router Timeout parameter Click on Help or see the parameter description on page A 24 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 3 23 Configuring IP Multicasting and Multimedia Services Specifying a Maximum Host Response Time By default a host must wait 100 tenths of a second before responding to a query IGMP places this value in the code field of an IGMP query You can use the BCC or Site Manager to specify a value from 1 to 100 tenths of a second Using the BCC To specify the maximum host response time navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter max host response lt time gt time is an integer from 1 through 100 specifying the response time in tenths of a second For example the following command sets the maximum host response time to 25 tenths of a second ig
229. mp 2 2 2 2 3 max host response 25 igmp 2 2 2 2 3 3 24 117355 D Rev 00 Configuring and Customizing IGMP Using Site Manager To specify the maximum host response time complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Interfaces The IGMP Interface Parameters window opens 5 Set the Max Host Response Time parameter Click on Help or see the parameter description on page A 24 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 3 25 Configuring IP Multicasting and Multimedia Services Specifying the Lifetime of an Mtrace Cache Entry IGMP creates entries in the forwarding cache specifically for the Mtrace utility By default IGMP keeps these entries in the forwarding cache for a maximum of 30 seconds You can use the BCC or Site Manager to specify a different lifetime value from 30 through 8192 seconds 2 hours 16 minutes and 32 seconds Using the BCC To specify the lifetime value for the Mtrace cache entries navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 0 0 igmp and enter mtrace lifetime lt seconds gt seconds is an interval from 30 through 8192 seconds For
230. mplete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols Choose IP The Protocols menu opens The IP menu opens Choose Policy Filters The IP Policies menu opens Choose IGMP The IGMP Policies menu opens aA N Choose Group Policies The IGMP Group Policy Filters window opens Select the name of the IGMP group policy that you want to disable or reenable Your selection is highlighted Set the Enable parameter Click on Help or see the parameter description on page A 76 Click on Done You return to the Configuration Manager window Configuring IGMP Static Forwarding Policies You configure IGMP static forwarding policies to forward multicast traffic as follows Between multicast dynamic and nonmulticast static interfaces Into and out of nonmulticast interfaces 117355 D Rev 00 3 33 Configuring IP Multicasting and Multimedia Services In Figure 3 1 multicast traffic is forwarded to a router that is configured with IGMP To create an IGMP static forwarding policy for this type of scenario e Set the forwarding mode to static e Specify the in circuits in this example IGMP interface 1 e Specify the out circuits in this example IGMP interfaces 2 and 3 Multicast traffic 1 IGMP Configure IGMP static g forwarding policy as follows
231. n Threshold Time T ET retai osiin pooti eean sire Boggy IOMP Wes Satie kosiar niece tes uate NE EN 3 10 Enabling Join Acknowledgments ssc cscs sare cccis sa cccueiy edecotisbeecesteSececume econ dtemncetveuais 3 12 Speciing a Forwarding Cathe LM scdacccctincs scestaseeiaiesaseadccesairedacncdededanadueddecconmee 3 13 Accepiing a Nonlocal REDON sessnsssnsisniiani a A Customizing IGMP on an Interface cceeeeeeeee seis eoa obba eins EE 3 15 Enabling and Disabling IGMP on an insets E A E sth P daddbescuneatee 3 16 Specifying Query SUPPFESSION c ccc ceeeceessseseceseecsseeeseseeecsseeeecssecesseeeseaeesseees 3 17 Specifying a Query Rate P ET kapi PEER eeteesats ETER 3 19 Specifying a Membership Timeout Interval c cccccssseeeeessseeeeeesseteeeeesssneeeeesenes 3 21 Specifying a Designated Router Timeout Interval cccccceeecsseseseeeeesseeeeseeeees 3 22 Specifying a Maximum Host Response Time ccccccceeeseeeeeeeeeeeaeeeeeneeeseaeeeeeneees 3 24 Specifying the Lifetime of an Mtrace Cache Entry ccccccccsccesseeceseeessteeeseseees 3 26 Specifying the Static Forward Cache Lifetime c0 PE PE PE E EE 3 27 Gomigurng a Statie Fost ENII nrnsrioraiainiei EE 3 28 Configuring an IGMP Boundary Group sesisisrsiuse enoue iaaa aaa aa 3 30 Disabling and Reenabling an IGMP Boundary Group ssssssssssesssssssesssessssessessressrersses 3 31 ACER TT AC IGMP PINS sninroniai en S pian 3 3
232. n that DVMRP performs on a route that matches this policy Select Accept to consider the route for inclusion in the routing table Select Ignore if you do not want to consider the route for inclusion 1 3 6 1 4 1 18 3 5 3 2 6 15 1 6 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Rule Precedence Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies 0 0 to 2147483647 Supplies a metric that DVMRP uses to compare this policy to other policies that a given route may match DVMRP chooses a policy with higher precedence over one with a smaller value In the case of a tie DVMRP uses the policy with the larger index Set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 15 1 8 Inject Aggregate Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Null An IP address and mask Specifies an IP network that DVMRP injects into the DVMRP routing table in place of the advertised networks This parameter has meaning only if the action is Accept Use this parameter to inject an aggregate address for a range of learned networks This allows insertion of an aggregate or default network along with the actual network Enter an IP address and mask To inject
233. n the same physical link to enable this parameter on the same PIM interface If you set this parameter to Disable the PIM router drops multicast packets forwarded from the IGMP Relay router 1 3 6 1 4 1 18 3 5 3 14 2 1 12 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Local DR Priority Configuration Manager gt Protocols gt IP gt PIM gt Interface 1 0 to 65 535 Specifies the priority level for a DR on the LAN regardless of the IP address of the other PIM routers on the LAN The higher the number the higher the priority Each PIM router on which you configured a DR election priority sends to its PIM neighbors a Hello message that contains its priority level The PIM router with the highest priority level is elected the DR for the LAN Local routers not configured with a DR election priority elect a DR based on the highest IP address A value of 0 disables this feature on the LAN Enter a priority value from 1 through 65 535 To disable the DR election priority option on the LAN enter a priority value of 0 1 3 6 1 4 1 18 3 5 3 14 2 1 13 RSVP Parameters RSVP Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt IP gt RSVP gt Global Enable Enable Disable Specifies the state of global RSVP Disable and r
234. nager Parameters Circuit List Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Admin Scope None A list of one or more circuit addresses Specifies a list of circuit addresses for this boundary definition Specify each circuit with a 2 octet address 1 3 6 1 4 1 18 3 5 3 13 5 1 5 Tunnel List Configuration Manager gt Protocols gt IP gt IGMP IGMP Relay gt Admin Scope None A list of one or more multicast tunnels Specifies a list of tunnels for this boundary address Specify each tunnel with an eight octet address four octets for the local IP address the local end of the tunnel and four octets for the remote IP address the remote end of the tunnel 1 3 6 1 4 1 18 3 5 3 13 5 1 6 117355 D Rev 00 Appendix B Troubleshooting Commands This appendix describes Bay Networks Technician Interface commands that you can use to troubleshoot a multicast network Topic Page mtrace Command B 2 mrinfo Command B 4 rsvp Command B 5 117355 D Rev 00 B 1 Configuring IP Multicasting and Multimedia Services mtrace Command The mtrace command allows you to trace the branch of a multicast tree from a source to a receiver for a particular multicast group Each branch of the tree is a data path consisting of multiple hops The mtrace command displays statistics about packet rates and losses for each hop along the path To display statistical information enter the mtrace command
235. nction Instructions MIB Object ID Site Manager Parameters Full Update Interval Configuration Manager gt Protocols gt IP gt DVMRP gt Global 60 10 to 2000 seconds Specifies in seconds how often routing messages containing complete routing tables are sent Determine the full update interval that you require and specify a value from 10 through 2000 seconds 33 minutes 20 seconds 1 3 6 1 4 1 18 3 5 3 12 1 4 Triggered Update Interval Configuration Manager gt Protocols gt IP gt DVMRP gt Global 5 5 or more seconds Specifies in seconds the maximum amount of time between triggered updates Triggered updates are sent between full updates Issuing a full update restarts the triggered update timer Therefore the triggered update interval you specify must be shorter than the full update interval you specified with the Full Update Interval parameter 1 3 6 1 4 1 18 3 5 3 12 1 5 Leaf Timeout Configuration Manager gt Protocols gt IP gt DVMRP gt Global 200 25 to 4000 seconds Specifies in seconds a value for the leaf timeout timer Determine the timer interval you require and specify a value from 25 through 4000 seconds 1 hour 6 minutes and 40 seconds 1 3 6 1 4 1 18 3 5 3 12 1 6 117355 D Rev 00 A 3 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options
236. nd sequence configures and enables IGMP Relay and then disables IGMP Relay igmp relay relay delete igmp 117355 D Rev 00 9 9 Configuring IP Multicasting and Multimedia Services Using Site Manager To enable and disable IGMP Relay globally complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay 4 Choose Global The IGMP menu opens The IGMP Global Configuration window opens Set the Relay parameter Click on Help or see the parameter description on page A 19 Click on Save You return to the Configuration Manager window When you configure IGMP Relay globally the IGMP Relay interface is configured as a downstream interface connecting the router to IGMP hosts To change that value see Specifying the Relay Interface Type on page 9 13 9 10 117355 D Rev 00 Configuring IGMP Relay Specifying a Timeout Value for Multicast Table Entries By default the timeout period for an entry in the multicast table is 60 seconds if there is no multicast data to refresh the entry You can use the BCC or Site Manager to specify a value for this parameter Using the BCC To reset the timeout value for multicast table entries navigate to the global IGMP Relay prompt for example box ip i
237. ndard IGMP 117355 D Rev 00 Specifying a Forwarding Cache Limit Configuring and Customizing IGMP By default IGMP allows a maximum of 512 entries in the Multicast Table Manager MTM forwarding cache This number affects all multicasting protocols The MTM cache must be at least as large as individual routing protocol caches for example the DVMRP cache You can use Site Manager to set the forwarding cache to a different value Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols Choose IP The Protocols menu opens The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window opens Set the Forward Cache Limit parameter Click on Help or see the parameter description on page A 18 Click on Save You return to the Configuration Manager window 117355 D Rev 00 3 13 Configuring IP Multicasting and Multimedia Services Accepting a Nonlocal Report By default IGMP rejects join and leave messages from nonlocal networks You can use the BCC or Site Manager to control the way IGMP handles nonlocal reports Using the BCC To specify the way IGMP handles nonlocal reports navigate to the global IGMP prompt for example stack ip igmp and enter ignore nonlocal report lt action gt action is one of the following ignore de
238. ndow choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens Set the Forward Cache Size parameter Click on Help or see the parameter description on page A 9 Click on Apply and then click on Done You return to the Configuration Manager window 4 40 117355 D Rev 00 Customizing DVMRP Specifying a TTL for Forwarding Table Entries To specify the timeout for cache entries in the forwarding table you can use the BCC or Site Manager Using the BCC To specify a TTL for entries in the forwarding table navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter fwd cache timeout lt seconds gt seconds is an integer indicating the TTL of a forwarding table entry in seconds For example the following command causes DVMRP to assign a TTL of 5000 seconds 1 hour 23 minutes and 20 seconds to entries in the forwarding table on this interface dvmrp 2 3 4 5 fwd cache timeout 5000 dvmrp 2 3 4 5 Using Site Manager To specify a TTL for entries in the forwarding table complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP Th
239. ne resources 6 Click on Yes The Edit Line Resources window opens continued 117355 D Rev 00 Starting Multicasting and Multimedia Services Site Manager Procedure continued You do this 7 Set the following parameters Estimated Bandwidth e Reservable Bandwidth Click on Help or see the parameter descriptions beginning on page A 28 8 Click on OK System responds You return to the Configuration Manager window RSVP is now running on the router with default values for all parameters You customize RSVP by modifying RSVP parameters For information and instructions see Chapter 7 Configuring RSVP 117355 D Rev 00 Chapter 3 Configuring and Customizing IGMP This chapter covers the following topics describing the Internet Group Management Protocol IGMP Topic Page IGMP Concepts and Terminology 3 2 Customizing IGMP Globally 3 4 Customizing IGMP on an Interface 3 15 Configuring a Static Host Entry 3 28 Configuring an IGMP Boundary Group 3 30 Disabling and Reenabling an IGMP Boundary Group 31 Configuring IGMP Policies 3 32 Deleting IGMP 3 39 117355 D Rev 00 3 1 Configuring IP Multicasting and Multimedia Services IGMP Concepts and Terminology The Internet Group Management Protocol IGMP allows hosts to communicate their group memberships to their local queries router and to receive any datagrams sent to this router
240. nen 4 15 Setting the Neighbor Report Timer cccececceeeeceeeeeeeeeeceeeeaeeseeeeeeesaeeeeeeeseeeees 4 17 Setting the Leaf Timer P E E E E ardia 419 Speci ying a Prove Interval ssis tninn nanssasieB liana amined 4 21 Speciying a Roote Switeh BRGAN oc secisis ciussiradernssincdaawadeedndasiviadsioinaadelcdaadeles 4 23 Estimaing the Numberof FIRES ccccscscnnissntscoccenivencteaniiaciiemmiecdinmmiicntsrmmivcceteniey 4 25 Specifying the Maximum Number of Routes sissisnissisisiieisisnininnissnnninsiseannnisiia 4 27 Logging DVMRP Messages metas E PE PE OEE punan PEE 4 29 Customizing DYMRP oman AG vicico aae toned scteaaned 4 30 Disabling and Reenabling DVMRP on an Interface cccceceeeeeeeeeeeeeeeeeeeetees 4 31 Enabling Multicast Migration Between DVMRP and Nonmulticast Interfaces 4 32 Receiving Nonmulticast Traffic and Forwarding As Multicast 0 0 ee 4 32 Receiving and Forwarding Multicast Traffic cc cecscceeeeeeeeceeeeeeeeeeseeeneeeaes 4 32 Disabling and Reenabling Multicast Support ec eee eeeeee cece eeeeeeeeeteeeeaeeeees 4 33 Calculating the Cost of an Interface esusnisnssanianinis a A Specifying a Threshold eatin es er E A I E Gets T 4 37 117355 D Rev 00 vii Connon a Forwarding TADIS esmais ieh 4 39 Specifying the Maximum Number of Table Banis T AT AT eee 4 40 Specifying a TTL for Forwarding Table Entries ccccecsceeeseeeceeteeeesee
241. nfiguring 9 1 data forwarding upstream 9 12 disabling globally 9 9 downstream hosts 9 3 DVMRP router with 9 20 enabling globally 9 9 hosts downstream 9 3 how it works 9 4 interface type 9 13 MOSPF boundary router with 9 18 overview 9 2 117355 D Rev 00 IGMP Internet Group Management Protocol Relay continued reports unsolicited 9 16 router redundancy 9 23 timeout values for multicast table entries 9 11 topology 9 3 type of interface 9 13 unsolicited reports 9 16 upstream data forwarding 9 12 multicast routers 9 3 In Circuits parameter IGMP static forwarding policies 3 37 A 82 Incoming Gateways parameter DVMRP accept policies 4 77 A 67 Incoming Networks parameter DVMRP accept policies 4 77 A 65 announce policies 4 82 A 69 unicast accept policies 4 72 A 60 Inflate Reservations Percentage parameter RSVP 8 9 A 31 Info Log Filter parameter RSVP global 7 6 A 55 Info Warnings parameter PIM global 6 30 A 48 Inject Aggregate parameter DVMRP accept policies 4 77 A 66 DVMRP unicast accept policies 4 72 A 62 Inject List parameter MOSPF accept DVMRP route policies 5 11 A 75 Interface Membership Timeout parameter IGMP interface 3 21 A 23 Interface Query Rate parameter IGMP interface 3 20 A 23 internal router IR in multicasting 5 2 Internet Group Management Protocol See IGMP IP Address parameter IP configuration A 26 J Join Ack Enable pa
242. nfiguring and Customizing IGMP Distance Vector Multicast Routing Protocol The Distance Vector Multicast Routing Protocol DVMRP advertises shortest path routes to multicasting source networks that is any network containing hosts that can issue multicast datagrams In this respect DVMRP is the opposite of RIP which advertises routes to destination networks For instructions on customizing DVMRP see Chapter 4 Customizing DVMRP 117355 D Rev 00 1 3 Configuring IP Multicasting and Multimedia Services Multicasting Extensions to OSPF Multicast OSPF MOSPF extensions enhance the OSPF protocol by providing capabilities that allow a router to forward multicast IP traffic within an OSPF Version 2 autonomous system For instructions on customizing MOSPF see Chapter 5 Customizing OSPF Multicast Extensions Protocol Independent Multicast Protocol Independent Multicast PIM is a multicast routing protocol that efficiently routes multicast traffic between members of multicast groups that are sparsely distributed across various regions of the Internet The Bay Networks implementation of PIM supports sparse mode PIM has the following characteristics e Communicates with downstream members to join a shared tree by sending explicit join messages e Uses rendezvous points RPs for receivers to meet new sources Sources announce their existence to RPs receivers query RPs to learn about multicast sessions
243. ng IP Multicasting and Multimedia Services Setting the Bandwidth Interval By default LRM measures instantaneous bandwidth over a 10 second interval If 10 seconds is not sufficient you can specify a different bandwidth interval for this interface from 1 through 214 748 364 seconds nearly 7 years To set the bandwidth interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens 2 Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens 3 Set the Bandwidth Interval Secs parameter Click on Help or see the parameter description on page A 30 4 Click on OK You return to the Configuration Manager window 8 8 117355 D Rev 00 Reserving Line Resources Setting the Inflate Reservations Percentage By default LRM does not add a safety tolerance to each RSVP reservation on a line To inflate or overallocate reservations made on this line enter a percent value to increase each bandwidth request Increase the value of this parameter if you notice that LRM is discarding packets because applications generating reserved traffic are exceeding their flowspecs To set the inflate reservations percentage complete the following tasks Site Manager Procedure You do this
244. ng Site Manager Customizing DVMRP To create or customize a DVMRP accept policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose DVMRP The DVMRP Policies menu opens 5 Choose Accept Policies The DVMRP Accept Policy Filters window opens 6 Click on Add The DVMRP Accept IP Policy Filter Configuration window opens 7 Set the following parameters Name Action Rule Precedence Incoming Networks Incoming Gateways e Received on Interfaces e Received on Tunnels Inject Aggregate Metric Click on Help or see the parameter descriptions beginning on page A 64 8 Click on OK You return to the DVMRP Accept Policy Filters window 9 Click on Done You return to the Configuration Manager window 117355 D Rev 00 4 77 Configuring IP Multicasting and Multimedia Services Disabling or Reenabling DVMRP Accept Policies After you create a DVMRP accept policy you can disable and reenable it as needed Using the BCC To disable an existing accept policy use state with a value of disabled For example box ip dvmrp accept policy3 accept policy3 dvmrp state disabled To reenable an existing accept policy use state with a value
245. nounce Policies 0 An integer Specifies a value to be used to compare this policy with other policies that a route may match A policy with a higher value takes precedence over a policy with a lower value In case of a tie the protocol uses an internal index value assigned to the policy by IP software The position of the policy in the list indicates the index value from lowest to highest Use this parameter to assign precedence to policies that match the same route 1 3 6 1 4 1 18 3 5 3 2 6 16 1 7 A 70 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Advertise Aggregate Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies Null IP address and mask Advertises a network that differs from the actual network in the routing table This octet string should only be non null if the action is Announce and if you want to advertise a network that differs from the actual network in the routing table For example if a number of networks in a certain range are in the table an aggregate could be advertised instead of the individual networks If non null the octet string contains one or more 2 tuples of the following form First 4 octets network number Next 4 octets network mask Upon receiving a route that matches this
246. o each PIM router on the path to the source or the RP Register and Register Stop Messages The DR sends register and register stop messages to the RP on behalf of a directly connected source The register message informs the RP of a new source causing the RP to send join messages back toward the DR of the source The DR stops sending multicast packets after it receives a register stop message from the RP The RP sends a register stop message if there are no downstream receivers for a group or if the RP has successfully joined the shortest path tree SPT Assert Messages PIM uses assert messages to determine which of the routers connected to a LAN is responsible for forwarding packets onto the LAN PIM sends assert messages when two parallel routers have forwarding entries for the same group with outgoing interfaces toward the same LAN 117355 D Rev 00 6 7 Configuring IP Multicasting and Multimedia Services Shared Trees and Shortest Path Trees PIM uses shared trees and shortest path trees SPTs to deliver data packets to group members in a PIM domain The following sections describe both types of trees Shared Trees By default group members in a PIM domain receive data from sources across a shared tree A shared tree consists of a set of paths that connect all members of a multicast group to its RP PIM creates a shared tree when sources and receivers send messages toward the RP The DR for the source sends register messag
247. obal Configuration window opens Set the Enable parameter Click on Help or see the parameter description on page A 17 Click on Save You return to the Configuration Manager window 117355 D Rev 00 3 5 Configuring IP Multicasting and Multimedia Services Estimating the Number of Groups By default IGMP estimates that 20 multicast groups will be simultaneously active on this router This estimate allows the router to use memory efficiently exceeding this size during router operation will not cause an error but may cause the router to consume more memory than required Note You do not need to include in the count any group from 224 0 0 0 through 224 0 0 255 You can use the BCC or Site Manager to supply an estimate from 5 through 65 535 groups Using the BCC To specify the estimated number of multicast groups navigate to the global IGMP prompt for example box ip igmp and enter estimated groups lt groups gt groups is an integer from 5 through 65 535 3 6 117355 D Rev 00 Configuring and Customizing IGMP Using Site Manager To estimate the number of groups complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGMP Relay The IGMP menu opens 4 Choose Global The IGMP Global Configuration window
248. ocedure You do this 1 In the Configuration Manager window choose Protocols System responds The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens Set the Hello Interval parameter Click on Help or see the parameter description on page A 51 Click on OK You return to the Configuration Manager window 6 32 117355 D Rev 00 Customizing Protocol Independent Multicast Setting the Cache Timeout Interval The cache timeout interval determines how long PIM data entries remain in the PIM cache before they time out By default entries remain in the cache for 210 seconds You can specify a value from 5 through 2 147 483 647 seconds To set the cache timeout interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Interface The PIM Interface Parameters window opens 5 Set the Cache Time Out parameter Click on Help or see the parameter description on page A 52 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 33 Configuring IP Multicasting and Multimedia Services Setting the Join
249. ocedure 0x00000002 Hello procedure 0x00000004 Join prune send procedure 0x00000008 Registration procedure 0x00000010 Maintaining PIM route table 0x00000020 Assert procedure 0x00000040 Data forwarding tree switching 0x00000080 PIM main gate processing 0x00000100 PIM Cct gate general processing 0x00000200 PIM route change processing 0x00000400 PIM G processing 0x00000800 PIM pte oif timers 0x00002000 PIM PIM messages 0x00004000 PIM protocol messages first data 0x00008000 Join prune received 0x00010000 PIM utilities including timers 1 3 6 1 4 1 18 3 5 3 14 1 6 A 50 117355 D Rev 00 Site Manager Parameters PIM Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following descriptions to set PIM interface parameters Enable Configuration Manager gt Protocols gt IP gt PIM gt Interface Enable Enable Disable Enables or disables PIM on this interface After you configure PIM on an interface PIM is enabled by default To disable PIM on this interface without deleting it enter Disable 1 3 6 1 4 1 18 3 5 3 14 2 1 2 Hello Interval Configuration Manager gt Protocols gt IP gt PIM gt Interface 30 1 to 2 147 483 647 seconds Specifies how often in seconds the local PIM router sends Hello messages on this
250. omizing DVMRP Specifying a Threshold Threshold values control the scope of datagram delivery The threshold is the minimum IP TTL in hops required for a multicast datagram to be forwarded out a given interface For mrouted compatibility multicast datagrams originated by the router have a TTL of 1 These datagrams are not compared against the TTL Unicast datagrams originated by the router for example for route reports issued via a tunnel have a TTL of 255 A datagram that is to be forwarded through a tunnel is first compared against the threshold and if accepted is then encapsulated in an IP datagram with a TTL of 64 Table 4 3 lists e Originating TTL values recommended for certain types of multicast applications e Threshold values recommended for routers to permit the forwarding of packets from these applications These values are recommended for topologies that will connect to the MBone Table 4 3 Recommended TTL and Threshold Values Multicast Application TTL Threshold IETF channel 1 low rate GSM audio 255 224 IETF channel 2 low rate GSM audio 223 192 IETF channel 1 PCM audio 191 160 IETF channel 2 PCM audio 159 128 IETF channel 1 video 127 96 IETF channel 2 video 95 64 Local event audio 63 32 Local event video 31 1 By default DVMRP uses a threshold value of 1 You can use the BCC or Site Manager to specify a TTL value from 1 through 254 117355 D Rev 00 4 37 Configu
251. on Instructions MIB Object ID Multicast Forwarding Configuration Manager gt Protocols gt IP gt OSPF MOSPF gt Interfaces Multicast Blocked Multicast Unicast Specifies the way multicast packets should be forwarded on this interface not forwarded forwarded as data link multicasts or forwarded as data link unicasts Data link multicasting is not meaningful on point to point and NBMaA interfaces and setting ospfMulticastForwarding to 0 effectively disables all multicast forwarding If you configured MOSPF globally specify the way that you want IP to forward multicast packets on this interface 1 3 6 1 4 1 18 3 5 3 2 3 5 1 30 PIM Parameters PIM Global Configuration Parameters Parameter Path Default Options Function Instructions MIB Object ID Use the following descriptions to set PIM global configuration parameters Enable Configuration Manager gt Protocols gt IP gt PIM gt Global Enable Enable Disable Enables and disables PIM support on the router Enabling PIM on an interface automatically enables IGMP To disable PIM after you configure it on the router specify Disable 1 3 6 1 4 1 18 3 5 3 14 1 2 117355 D Rev 00 A 37 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Last Hop Threshold Conf
252. on In the Bay Networks multicast implementation configuring IGMP on an interface does the following e The interface is used for forwarding multicast traffic e IGMP is running on the interface If you configured IGMP on an interface only for the purpose of forwarding multicast traffic you should disable the sending of IGMP group membership queries You can use the BCC or Site Manager to suppress queries By default IGMP sends queries Using the BCC To disable or reenable the sending of IGMP queries navigate to the IGMP prompt for the interface for example box ethernet 2 1 ip 2 2 2 2 255 255 255 0 igmp and enter suppress query yes no For example the following command suppresses the sending of IGMP queries on IP interface 2 2 2 2 igmp 2 2 2 2 3 Suppress query yes igmp 2 2 2 2 3 117355 D Rev 00 3 17 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify query suppression on an IGMP interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose IGMP IGMP Relay 4 Choose Interfaces The IGMP menu opens The IGMP Interface Parameters window opens Set the Query Suppression parameter Click on Help or see the parameter description on page A 25 Click on Apply and then
253. on applies to all Software acquired for use within the European Community If Licensee uses the Software within a country in the European Community the Software Directive enacted by the Council of European Communities Directive dated 14 May 1991 will apply to the examination of the Software to facilitate interoperability Licensee agrees to notify Bay Networks of any such intended examination of the Software and may procure support and assistance from Bay Networks 7 Term and termination This license is effective until terminated however all of the restrictions with respect to Bay Networks copyright in the Software and user manuals will cease being effective at the date of expiration of the Bay Networks copyright those restrictions relating to use and disclosure of Bay Networks confidential information shall continue in effect Licensee may terminate this license at any time The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license Upon termination for any reason Licensee will immediately destroy or return to Bay Networks the Software user manuals and all copies Bay Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license 8 Export and Re export Licensee agrees not to export directly or indirectly the Software or related technical data or information without first obtaining any required export licenses or other governmen
254. onents of a PIM Network 6 3 Join Prune Register and Assert Messages 6 7 Shared Trees and Shortest Path Trees 6 8 How a Receiver Joins a Multicast Group 6 10 How a Receiver Leaves a Multicast Group 6 12 How a Source Sends Multicast Packets to a Group 6 12 How the RP Switches to the Shortest Path Tree 6 15 How the Last Hop Router Switches to the Shortest Path Tree 6 17 Components of a PIM Network A PIM network consists of the devices described in this section Hosts A host can be either a source or a receiver A source sends multicast data to a multicast group A source is not required to be a receiver of the group A source is also known as a sender A receiver wants to receive multicast data from all sources of the multicast group Last Hop Router The last hop router is usually the designated router for the receiver side of the network It is the last router on the path from the source to the receiver Designated Router The designated router DR is responsible for sending register messages to the RP on behalf of directly connected sources It is also responsible for sending join prune messages to the RP on behalf of directly connected receivers The DR maintains information about the status of the active RP for local sources in each multicast group 117355 D Rev 00 6 3 Configuring IP Multicasting and Multimedia Services The DR can be a first hop router a last hop router or both depending on how you con
255. onfigured the circuit the Select Protocols window opens Proceed as follows Site Manager Procedure You do this System responds 1 In the Select Protocols window choose the following protocols When you select DVMRP IGMP is automatically selected IP DVMRP 2 Click on OK The IP Configuration window opens 3 Set the following parameters IP Address Subnet Mask Transmit Beast Addr UnNumbered Assoc Address Click on Help or see the parameter descriptions beginning on page A 26 Click on OK If this is the first DVMRP interface on the router the DVMRP Global Parameters window opens Otherwise you return to the Configuration Manager window In the DVMRP Global Parameters window click on Save to accept the default values If this is the first IGMP interface on the router the Initial IGMP Global Configuration window opens Otherwise you return to the Configuration Manager window In the Initial IGMP Global Configuration window click on Save to accept the default values You return to the Configuration Manager window DVMRP is now running on the router with default values for all global and interface parameters IGMP is also automatically enabled 117355 D Rev 00 2 5 Configuring IP Multicasting and Multimedia Services Starting MOSPF MOSPF is a multicasting extension of OSPF To start MOSPF you must add OSPF to an IP interface and en
256. ons that contain a primary and a backup multicast router e Configurations that contain a primary and a backup IGMP Relay device In Figure 9 8 for example an IGMP Relay device has interfaces to two multicast routers A leased line connects the IGMP Relay device to the primary multicast router A dial up line connects the IGMP Relay device to the backup multicast router Primary IP Backup IP multicast router multicast router IGMP Relay Leased Line Dial connection IP0069A Figure 9 8 IGMP Relay with Primary and Backup Multicast Routers For instructions on configuring a dial connection see Configuring Dial Services 9 22 117355 D Rev 00 Configuring IGMP Relay Configuring IGMP Relay with Router Redundancy IGMP Relay operates with Bay Networks router redundancy in hot standby mode Figure 9 9 shows a topology with two IGMP Relay devices configured for router redundancy One of the IGMP Relay devices is configured as the primary device the other is configured as the secondary device When the primary device is active it is responsible for all IGMP Relay functions as well as all routing features associated with the device The secondary device remains in a passive mode with
257. opens 5 Set the Estimated Groups parameter Click on Help or see the parameter description on page A 17 6 Click on Save You return to the Configuration Manager window 117355 D Rev 00 3 7 Configuring IP Multicasting and Multimedia Services Specifying a Version Threshold Time By default 540 seconds 9 minutes can elapse after IGMP detects a Version 1 query before IGMP tries to become the designated querier You can use the BCC or Site Manager to specify a version threshold time from 1 through 65 535 seconds 18 hours 12 minutes and 15 seconds The value that you specify should be greater than the Version 1 query rate of all IGMP speakers on all networks directly connected to the router Using the BCC To specify a version threshold time navigate to the global IGMP prompt for example stack ip igmp and enter version threshold lt threshold gt threshold is the number of seconds from 1 through 65 535 For example the following command sets the version threshold time to 500 seconds 8 minutes 20 seconds igmp version threshold 500 igmp 3 8 117355 D Rev 00 Configuring and Customizing IGMP Using Site Manager To specify a version threshold time complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose IGMP IGM
258. opens 3 Choose Protocols The Protocols menu opens 4 Choose Add Delete The Select Protocols window opens 5 Click on PIM Site Manager deselects PIM 6 Click on OK You return to the Circuit Definition window 7 Choose File The File menu opens 8 Choose Exit You return to the Configuration Manager window 117355 D Rev 00 6 37 Chapter 7 Configuring RSVP The Resource Reservation Protocol RSVP allows host systems in an IP network to reserve resources on RSVP capable routers for e Unicast dataflows e Multicast dataflows A dataflow is a transmission of packets from a source to one or more destinations requiring a specific quality of service QoS This chapter covers the following topics Topic Page How RSVP Works 7 2 Configuring RSVP Globally 7 4 Configuring RSVP on an Interface 7 7 Deleting RSVP 7 14 117355 D Rev 00 7 1 Configuring IP Multicasting and Multimedia Services How RSVP Works A network host that wants to establish a dataflow with a specified QoS sends an RSVP path message addressed to a potential receiving host or group of hosts In Figure 7 1 for example a host sends a multicast RSVP path message to a group of four hosts Routers in the network receive the multicast RSVP messages and forward them to the next hop router until the messages reach their host destinations The sequence of networks and routers that a path message traverses
259. or more of the following parameters Table 4 6 Table 4 6 DVMRP Announce Policy BCC Parameters Parameter Values default d Description action announce d ignore Specifies whether to advertise or ignore the interfaces or networks for a route that matches this policy e To advertise the matching route use announce e If you do not want to advertise the matching route use ignore interface null d IP address Specifies a list of DVMRP interfaces This policy applies to DVMRP advertisements sent using these interfaces To apply the DVMRP announce policy to advertisements on any interface use the default null metric 0 d through 31 Specifies a metric for the advertised route To use the metric values in the routing table accept the default 0 continued 117355 D Rev 00 4 79 Configuring IP Multicasting and Multimedia Services Table 4 6 DVMRP Announce Policy BCC Parameters continued Parameter Values default d Description network null a address mask match exact match range Specifies the networks that match this policy and whether you want the match to be exact or a range match exact means match the specific network advertisement number and mask match range means match any network number that falls in the range indicated by the IP address and mask Use the default null to match any route precedence 0 d through 2
260. ordance with the particular multicast protocol DVMRP or MOSPF that is running on the outbound interface See Figure 1 3 If you set the IGMP static forwarding policy for Static forwarding mode the router forwards the multicast traffic to a nonmulticast static configured interface See Figure 1 4 117355 D Rev 00 1 7 Configuring IP Multicasting and Multimedia Services Unicast network Unicast application transmits the data vi Configure IP traffic filter on interface 1 Router with for unicast to multicast conversion multicast protocol DVMRP or MOSPF Multicast network oJ Configure IP traffic filter on interface 2 for multicast to unicast conversion Router Unicast application receives data Unicast network IP0101A Figure 1 1 Using IP Traffic Filters for Unicast to Multicast and Multicast to Unicast Data Migration 1 8 117355 D Rev 00 Multicasting and Multimedia Overview Multicast network 1 DVMRP or MOSPF oJ Configure IGMP static forwarding policy as follows Forwarding Mode Dynamic to Static Out Circuits Specify interface 2 or 3 2 IGMP 3 IGMP v Host Host IP0104A Figure 1 2 Forwarding Multicast Traffic from a Dynamic Multicast Network to Static Interfaces 117355 D Rev 00 1 9 Configuring IP Mul
261. outing Table Entry Item Description Source subnet address and Address and mask of a subnetwork containing a host mask sourcing multicast datagrams From gateway Previous hop router leading back to the source subnet TTL Number of seconds before this entry is removed from the routing table Note that the source subnet and the previous hop router in the DVMRP routing table are the opposite of the destination subnet and next hop router in a RIP routing table Using this information the router can 1 Receive a multicast datagram and determine whether the datagram arrived on the interface that is on the shortest path to the source network 2 Drop the datagram if it has not arrived on the shortest path interface 3 Flood the multicast datagram to all active downstream DVMRP neighbors Shortest Path Trees Route information used by DVMRP is independent of any other routing information used by the router for example routes provided by RIP The purpose of DVMRP routing information is to create a shortest path tree entry in the routing table for the propagation of multicast datagrams The shortest path tree entry indicates the interface that provides the shortest path to the network that is the source of the multicast datagram In Figure 4 1 on page 4 3 for example the routing table on router D includes an entry describing the shortest path route to the network connected to router A The entry indicates that interface d
262. p Threshold Last Hop Data Threshold Click on Help or see the parameter descriptions beginning on page A 38 6 Click on OK You return to the Configuration Manager window Modifying the Rendezvous Point Threshold By default the RP router switches from the shared tree to the shortest path tree when the source sends data packets at a rate that exceeds 1024 bytes per second You can modify the rendezvous point threshold as follows e Change the data threshold rate bytes per second e Specify a value from 0 through 64 for the RP data threshold to force the RP to immediately switch from the shared tree to the SPT upon receiving the first packet from the source e Disable the RP data threshold to ensure that PIM routers continue to receive multicast traffic over the shared tree For more information about switching from the shared tree to the SPT see How the RP Switches to the Shortest Path Tree on page 6 15 117355 D Rev 00 6 21 Configuring IP Multicasting and Multimedia Services To modify the RP threshold complete the following tasks You do this Site Manager Procedure System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the following parameters Rendezvous Point RP Thre
263. packet is within the data rate threshold configured on the RP the default is 1024 bytes per second the RP decapsulates each register message and forwards native multicast messages downstream to all group members on the shared tree e Ifthe data rate of the source packet exceeds the data rate threshold configured on the RP the RP can elect to switch to an SPT upon receiving the first packet from the source 6 12 117355 D Rev 00 Customizing Protocol Independent Multicast If the RP has no downstream members that want to receive multicast traffic for the group the RP sends a register stop message to the DR for the source The DR starts the register suppression timer upon receiving the first register stop message During the register suppression timeout period the default is 60 seconds the following events occur The source s DR sends a probe packet to the RP before the register suppression timer expires default is 5 seconds The probe packet prompts the RP to determine whether any new downstream receivers have joined the group If no new receivers have joined the RP sends another register stop message to the source s DR and its register suppression timer starts again When the RP no longer responds to the source DR probe message the register suppression timer expires and the DR sends encapsulated multicast packets to the RP The RP uses this method to tell the DR that it has new members that have joined the group The
264. parameter description on page A 7 Click on Save You return to the Configuration Manager window 117355 D Rev 00 Customizing DVMRP Setting the Route Expiration Timer The route expiration timer determines how long DVMRP waits for an update message indicating that a route is reachable Upon expiration of this timer this route is advertised as unreachable until it is refreshed or until it is deleted By default DVMRP sets the route expiration timer to 200 seconds 3 minutes 20 seconds You can use the BCC or Site Manager to set the route expiration time from 20 through 4000 seconds 1 hour 6 minutes and 40 seconds Note DVMRP timers must be the same throughout the network Using the BCC To reset the route expiration timer navigate to the global DVMRP prompt for example box ip dvmrp and enter route expiration timeout lt seconds gt seconds is an integer from 20 through 4000 indicating the number of seconds For example the following command sets the route expiration timer to 500 seconds 8 minutes 20 seconds dvmrp route expiration timeout 500 dvmrp 117355 D Rev 00 4 13 Configuring IP Multicasting and Multimedia Services Using Site Manager To set the route expiration timer complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP
265. pens The DVMRP Global Configuration window opens Set the Estimated Routes parameter Click on Help or see the parameter description on page A 5 Click on Save You return to the Configuration Manager window 4 26 117355 D Rev 00 Customizing DVMRP Specifying the Maximum Number of Routes By default DVMRP stores all learned routes in the routing table You can use the BCC or Site Manager to specify the number of routes that DVMRP can learn per slot This parameter limits the number of routes that can be stored in the routing table If you specify a maximum number of routes you must include a route for every local network that has an interface configured for multicasting Using the BCC To specify the maximum number of routes stored in the routing table navigate to the global DVMRP prompt for example stack ip dvmrp and enter max routes lt max gt max is an integer indicating the maximum number of routes For example the following command causes DVMRP to store in the routing table a maximum of 25 learned routes per slot dvmrp max routes 25 dvmrp 117355 D Rev 00 4 27 Configuring IP Multicasting and Multimedia Services Using Site Manager To specify the maximum number of routes complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens C
266. pens 3 Choose DVMRP The DVMRP menu opens 4 Choose Tunnel The DVMRP Tunnel Parameters window opens 5 Set the Prune Life Time parameter Click on Help or see the parameter description on page A 15 6 Click on Apply and then click on Done You return to the Configuration Manager window 4 68 117355 D Rev 00 Customizing DVMRP Configuring DVMRP Policies The following topics describe how to configure DVMRP policies Topic Page Configuring DVMRP Unicast Accept Route Policies 4 69 Disabling or Reenabling DVMRP Unicast Accept Policies 4 73 Configuring DVMRP Accept Policies 4 74 Disabling or Reenabling DVMRP Accept Policies 4 78 Configuring DVMRP Announce Policies 4 79 Disabling or Reenabling DVMRP Announce Policies 4 83 Configuring DVMRP Unicast Accept Route Policies A unicast accept route policy causes DVMRP to copy the routes you specify from the IP unicast routing table and inject them into the DVMRP routing table You must configure a DVMRP unicast accept policy to e Accept and forward multicast packets from a static configured nonmulticast network For more information see Multicast Migration on page 1 6 e Connect a DVMRP router to an IGMP Relay device For complete information see Configuring a DVMRP Router for Use with IGMP Relay on page 9 20 Before you can create a unicast accept policy on an interface IGMP and DVMRP m
267. priority then PIM elects the C BSR with the higher IP address as the BSR for the domain Determine a priority level for the C BSR and enter this value 1 3 6 1 4 1 18 3 5 3 14 1 22 Candidate BSR Interval Configuration Manager gt Protocols gt IP gt PIM gt Global 60 5 to 32 757 seconds Specifies the interval in seconds at which the elected BSR multicasts periodic bootstrap messages RP set on all PIM interfaces Specify a value from 5 through 32 757 that determines how frequently the elected BSR sends periodic RP set messages on all PIM interfaces The highest possible value 32 757 seconds is equal to 9 hours 5 minutes and 57 seconds You must specify the same interval for each C BSR in the PIM domain 1 3 6 1 4 1 18 3 5 3 14 1 23 A 42 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Candidate BSR Hash Mask Length Configuration Manager gt Protocols gt IP gt PIM gt Global 30 4 to 32 Specifies the length of the hash mask for the elected BSR The hash function is used by all routers within a PIM domain to map a group to one of the C RPs in the RP set For a particular group G the hash function uses only those C RPs whose group prefix covers G The hash function takes as input the group address and the addresses of the C RPs and gives as out
268. put one RP address to be used The hash mask which is included in the bootstrap message allows a small number of consecutive groups for example 4 to map to the same RP For example hierarchically encoded data can be sent on consecutive group addresses to obtain the same delay and fate sharing characteristics Determine the length of the hash mask and specify a value from 4 through 32 1 3 6 1 4 1 18 3 5 3 14 1 24 Candidate RP Configuration Manager gt Protocols gt IP gt PIM gt Global Disable Enable Disable Specifies whether to configure a PIM router as a C RP router C RP routers periodically send unicast C RP advertisement messages to the BSR of that domain The interval for sending C RP messages is specified using the Candidate RP Advertise Interval parameter PIM elects the primary RP based on priority first then on the highest hash value If the priority level and hash value are the same PIM elects the C RP with the highest IP address as the RP Set to Enable to configure the PIM router as a C RP Set to Disable if you do not want to configure the PIM router as a C RP 1 3 6 1 4 1 18 3 5 3 14 1 25 117355 D Rev 00 A 43 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Candidate RP IP Address Configuration Manager gt Protocols gt
269. r a Dataflow By default there is no maximum amount of bandwidth that can be reserved by a flow To specify the maximum reservable bandwidth complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens 2 Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens 3 Set the Largest Bandwidth parameter Click on Help or see the parameter description on page A 34 4 Click on OK You return to the Configuration Manager window 117355 D Rev 00 8 15 Configuring IP Multicasting and Multimedia Services Setting the Maximum Buffer Space for a Dataflow By default there is no maximum amount of buffer space that can be used by a flow To specify the maximum buffer space for a flow complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on any connector for a line that is configured for RSVP 2 Click on Edit Line Resources in the Edit The Edit Line Resources window opens Connector window 3 Set the Largest Buffer parameter Click on Help or see the parameter description on page A 34 4 Click on OK You return to the Configuration Manager window
270. r a tunnel specification consisting of all f s 117355 D Rev 00 4 75 Configuring IP Multicasting and Multimedia Services Examples To specify an incoming network address to which this policy applies navigate to the DVMRP accept policy prompt and enter the following commands accept dvmrppol2 dvmrp match match dvmrp accept dvmrppol2 network address 192 31 27 85 mask 255 255 255 0 match exact network 192 31 27 85 255 255 255 0 exact dvmrp accept dvmrppol2 To match any incoming network number that falls within a range navigate to the DVMRP accept policy prompt and enter the following commands accept dvmrppol2 dvmrp match match dvmrp accept dvmrppol2 network address 192 31 27 85 mask 255 255 255 0 match range To inject a different network into the DVMRP routing table navigate to the DVMRP accept policy prompt and enter the following commands accept dvmrppoll dvmrp modify modify dvmrp accept dvmrppoll inject address 199 234 64 89 mask 255 255 255 0 inject 199 234 64 89 255 255 255 0 modify dvmrp accept dvmrppoll To set a precedence or metric other than the default follow these examples accept dvmrppol2 dvmrp precedence 3 accept dvmrppol2 dvmrp metric 4 To ignore the networks gateways interfaces or tunnels that match the DVMRP accept policy dvmrppol2 set the action parameter as follows box ip dvmrp accept dvmrppol2 accept dvmrppol2 dvmrp action ignore 4 76 117355 D Rev 00 Usi
271. r as follows box ip dvmrp unicast accept dvmrppol2 unicast accept dvmrppol2 dvmrp action ignore Using Site Manager To create or customize a DVMRP unicast accept policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose DVMRP The DVMRP Policies menu opens 5 Choose Unicast Accept Policies The DVMRP Unicast Accept Route Policy Filters window opens 6 Click on Add The DVMRP Add Unicast Accept Route Policy Filter window opens 7 Set the following parameters Name Incoming Networks Action e Route Preference Rule Precedence Inject Aggregate Received on Interfaces Route Type Metric Click on Help or see the parameter descriptions beginning on page A 59 8 Click on OK You return to the DVMRP Unicast Accept Route Policy Filters window 9 Click on Done You return to the Configuration Manager window 4 72 117355 D Rev 00 Customizing DVMRP Disabling or Reenabling DVMRP Unicast Accept Policies After you create a DVMRP unicast accept policy you can disable and reenable it Using the BCC To disable a configured unicast accept policy use state with a value of disabled For example box ip dvmrp unicast acc
272. r to obtain better delay characteristics for reserved flows but note that overall throughput may decrease Increase the default value to improve throughput but note that reserved flow delays may increase 1 3 6 1 4 1 18 3 5 16 2 1 3 1 13 117355 D Rev 00 A 33 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Largest Bandwidth Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 no maximum O or an integer indicating the percentage of bandwidth Specifies the maximum bandwidth that a single flow can reserve on this line Set this parameter as required 1 3 6 1 4 1 18 3 5 16 2 1 3 1 14 Largest Buffer Configuration Manager gt XCVR FDDI HSSI MCT1 or COM connector configured for RSVP gt Edit Connector window gt Edit Line Resources 0 no maximum 0 or an integer specifying the amount of buffer space Specifies the maximum buffer space that a single flow can reserve on this line Set this parameter as required 1 3 6 1 4 1 18 3 5 16 2 1 3 1 15 A 34 117355 D Rev 00 Site Manager Parameters OSPF Parameters for Multicast Extensions OSPF Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Pat
273. r to quickly learn whether a neighbor rebooted with the latest RP set information within the holdtime specified in its previous Hello message You can prevent the PIM router from appending generation identifiers to Hello messages that it sends to its neighbors Disable this option if you have a network in which Bay Networks and non Bay Networks PIM routers are interoperating To disable and reenable the inclusion of generation identifiers in Hello messages complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the Generate Neighbor Hello ID parameter Click on Help or see the parameter description on page A 41 6 Click on OK You return to the Configuration Manager window 6 24 117355 D Rev 00 Customizing Protocol Independent Multicast Modifying the Candidate BSR Configuration A C BSR is a PIM router that you configure to participate in the BSR election and to serve as the primary BSR if elected You can configure multiple routers within a PIM domain as C BSRs by assigning each an IP address priority level interval value and hash mask length PIM elects the candidate with the highest priority as the primary BSR for the PIM domain To configu
274. rameter IGMP global 3 12 A 18 Join Prune Interval parameter PIM interface 6 34 A 53 join prune messages PIM 6 7 117355 D Rev 00 L Largest Bandwidth parameter line resources 8 15 A 34 Largest Buffer parameter line resources 8 16 A 34 Last Hop Data Threshold parameter PIM global 6 21 A 38 Last Hop Threshold parameter PIM global 6 21 A 38 Leaf Timeout parameter DVMRP global 4 20 A 3 leaky bucket policing algorithm line resources 8 10 Line Resource Manager LRM bandwidth interval 8 8 latency for reserved flow packet 8 14 multiline select algorithms 8 12 multiline threshold bandwidth 8 13 overview 8 2 policing algorithm 8 7 8 10 reservations inflate by percentage 8 9 traffic queuing algorithm 8 6 unreserved packets in queue specifying maximum 8 11 Listen Default Route parameter DVMRP circuit 4 46 A 10 Local DR Priority parameter PIM interface 6 36 A 54 Local IP Address parameter DVMRP tunnel 4 52 A 16 logging messages DVMRP 4 29 IGMP 3 10 PIM 6 30 RSVP 7 6 LSSR option 4 54 Max Host Response Time parameter IGMP interface 3 25 A 24 Max Routes parameter DVMRP global 4 28 A 7 Index 5 messages logging DVMRP 4 29 IGMP 3 10 PIM 6 30 RSVP 7 6 Metric parameter DVMRP accept policies 4 77 A 68 announce policies 4 82 A 72 circuit 4 36 A 8 tunnel 4 56 A 12 unicast accept policies 4 72 A 63 metric route 4 5 MOSPF Mu
275. re a router as a BSR complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the following parameters e Candidate BSR e Candidate BSR IP Address Candidate BSR Priority e Candidate BSR Interval Candidate BSR Hask Mask Length Click on Help or see the parameter descriptions beginning on page A 41 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 25 Configuring IP Multicasting and Multimedia Services Modifying the Candidate RP Configuration You can configure a set of PIM routers as C RPs by assigning each C RP an IP address priority level group mask advertise interval and register cache timeout value A PIM router can serve as an RP for more than one group and a group can have more than one RP Multiple RPs can serve different groups or group ranges or serve as backups to each other To configure a router as a candidate RP complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choos
276. responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the Register Suppression Timeout parameter Click on Help or see the parameter description on page A 46 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 6 27 Configuring IP Multicasting and Multimedia Services Setting the Probe Timer The probe timer specifies the interval in seconds between the time that the first hop router sends a probe packet to the RP router and the expiration of the register suppression timer Before the register suppression timer times out the first hop router sends a probe packet to the RP If the RP determines that it still does not have any downstream receivers it sends a register stop message back to the first hop router thereby restarting the suppression timer If the first hop router does not receive a register stop message in response to the probe the suppression timer expires and the first hop router re creates the outgoing interface for this entry so that future register packets can be forwarded to the RP router By default PIM sets the probe timer to 5 seconds You can set the probe timer from 1 through 65 535 seconds 18 hours 12 minutes and 15 seconds This value must be less than the value you
277. ring IP Multicasting and Multimedia Services Using the BCC To specify a threshold navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter ttl threshold lt it gt ttlis an integer from 1 the default through 254 For example the following command assigns a threshold value of 15 to DVMRP interface 2 3 4 5 dvmrp 2 3 4 5 ttl threshold 15 dvmrp 2 3 4 5 Using Site Manager To specify a threshold complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Circuit The DVMRP menu opens The DVMRP Circuit Parameters window opens Set the Threshold parameter Click on Help or see the parameter description on page A 9 Click on Apply and then click on Done You return to the Configuration Manager window 4 38 117355 D Rev 00 Customizing DVMRP Configuring a Forwarding Table To minimize the amount of time that it spends looking up routes DVMRP creates and maintains a cache of frequently used routes called a forwarding table for each IP interface By default DVMRP preallocates a forwarding table of 32 entries for each interface You can specify the maximum number of entries 32 through 512 allowed in the forwarding table as
278. ring an MOSPF accept DVMRP route policy to import only the default DVMRP route to the MOSPF domain Creating or Modifying MOSPF Accept DVMRP Route Policies To create an MOSPF accept DVMRP route policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose Policy Filters The IP Policies menu opens 4 Choose MOSPF The MOSPF Policies menu opens 5 Choose Accept DVMRP Route Policies The MOSPF Accept DVMRP Routes Policy Filters window opens 6 Click on Add The MOSPF Accept DVMRP Routes Policy Filter Configuration window opens 7 Set the following parameters Name Action Rule Precedence DVMRP Networks Inject List Click on Help or see the parameter descriptions beginning on page A 73 8 Click on OK You return to the MOSPF Accept DVMRP Routes Policy Filters window 9 Click on Done You return to the Configuration Manager window 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Disabling or Reenabling MOSPF Accept DVMRP Route Policies To disable or reenable an MOSPF accept DVMRP route policy complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens
279. routing information including route costs In Figure 4 1 for example router D becomes active and issues routing probes on four multicasting interfaces Router D receives reports from its multicasting neighbors routers B C and E Source Route Advertisements A source network is any network containing hosts that can issue multicast datagrams DVMRP advertises shortest path routes to multicasting source networks In this respect DVMRP is the opposite of RIP which advertises routes to destination networks Periodically each multicasting router issues full or partial routing information on each DVMRP interface using DVMRP report messages This routing information represents the sending router s cost to reach the specified source network The cost is the sum of the hop metrics along the shortest path to the given source network Upon receiving a DVMRP report from another router DVMRP reexamines its routing table to determine whether the shortest path information needs updating Specifically DVMRP looks in the routing table for an entry describing a route to the same source network If one exists DVMRP compares the cost of the two routes and stores the route with the lower cost in its routing table A router will not send route reports on an interface until it knows by means of received probes or reports that it has a neighboring multicast router on that interface It will continue to send probes periodically on an interface
280. rune Message cceeccceeeeeeeeeeeeeeeeeeeeeneeeteaeeneeneees 4 68 CETTE DYMAP PG sinisini sinan baan aaa NNE rA ADEA AASE supa 4 69 Configuring DVMRP Unicast Accept Route Policies cccceesceeeeeeeeeeteeeteeeeees 4 69 Disabling or Reenabling DVMRP Unicast Accept Policies inenen 4 73 Configuring DVMRP Accept Policies nanana PEA aaa PT 4 74 Disabling or Reenabling DVMRP Accept Policies cccesseeceeeeeseeeeeeeeeeereeees 4 78 Contiguring DVMAP Ammounce POlCIS ssrin 4 79 Disabling or Reenabling DVMRP Announce Policies inom See E se rest Oe Ee paraa cant aeitan ping aa aie eee RN 4 84 Chapter 5 Customizing OSPF Multicast Extensions MOSPF Concepts and Ter imiQhagy issc sccsacccissedacescentscchanmepedeeceptensiaqniseeslanaeaierasstenneat 5 2 GENUS KMOSPF ees AN asirai tinaaa aa ASE E das Gus 5 4 Specifying a Forwarding Timeout Value eee PAT AEF ana pauan ma DD viii 117355 D Rev 00 Specifying a Maximum Number of Queued Packets ccsessesseeeseesneeeneeeeeeeaaes 5 6 aie lel ute Denam Tarania rer tr Teen cer recast earner errr meer SE 5 7 Enabling Multicast Migration Between MOSPF and Nonmulticast Interfaces 5 8 Forwarding Multicast Traffic from a Nonmulticast Interface to an MOSPF Interface nsen re seine an DB Forwarding Multicast Traffic from an MOSPF Interface to a Nonmulticast Interface ee R E ma OB Configuring Multi
281. ry router Figure 5 1 Area 0 0 0 1 External ASBR Internal router Border router Backbone Area 0 0 0 0 External network IP0055A OSPF Autonomous System MOSPF supports four types of multicasting Intra area multicasting for OSPF internal routers Intra area and inter area multicasting for OSPF border routers Intra area and inter AS multicasting for OSPF boundary routers All multicasting types 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Configuring MOSPF Globally Bay Networks does not support dynamic configuration of MOSPF After making local configuration changes you must restart OSPF by disabling and reenabling it If you enable MOSPF do not run other multicasting protocols on any OSPF interfaces even if MOSPF is disabled on those interfaces that is even if you set the Multicast Forwarding parameter to blocked If you want to disable MOSPF on a network use Site Manager to disable MOSPF on all routers in the network If you are configuring an OSPF network with both MOSPF and non MOSPF routers set the non MOSPF routers to priority 0 so that the MOSPF routers can become designated router and backup designated router DR BDR which is necessary for MOSPF to work To add MOSPF extensions to OSPF complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window
282. s An empty list Leave empty or specify one or more outbound circuit number and time to live TTL threshold octet combinations Specifies outbound circuits If you do not want this circuit to forward any packets affected by this filter leave the value for this parameter empty To define a circuit number and TTL threshold from which you want to forward packets enter the octets as follows First 2 octets circuit number Next 2 octets TTL threshold 1 3 6 1 4 1 18 3 5 3 2 6 20 1 12 Forwarding Mode Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries Static Static Static to Dynamic Dynamic to Static Specifies how this statically configured interface handles multicast packets Choose Static if you want static forwarding of multicast packets without consulting multicast protocols or even without multicast protocols Choose Static to Dynamic if you want to accept multicast packets from a specified static configured nonmulticast interface and forward them to outbound interfaces running multicast protocols If you choose this setting you must also set the IGMP interface parameter Static Forward Cache Lifetime to a value appropriate for the multicast protocol Choose Dynamic to Static if you want to accept multicast packets from an interface running a multicast protocol and forward them on to static configured nonmulticast outbound interfaces 1 3 6 1 4 1 18 3 5 3 2 6 20 1 1
283. s gt IGMP gt Static Forwarding Entries An empty list Leave empty or specify one or more sources Identifies which sources will match this policy If you want this filter to match any source do not specify a value for this parameter To specify an exact source address or range of source addresses enter one or more octet groupings in the following form First octet exact 1 or range 2 Next 4 octets source address Next 4 octets source mask Exact means match only the specific source number and mask Range means match any prefix that falls in the range indicated by the source and mask 1 3 6 1 4 1 18 3 5 3 2 6 20 1 10 In Circuits Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entries An empty list Leave empty or specify one or more 2 octet circuit numbers Specifies inbound circuits If you do not want this circuit to accept any inbound packets leave the value for this parameter empty If you want this circuit to accept inbound packets enter the circuit number or numbers in 2 octet strings 1 3 6 1 4 1 18 3 5 3 2 6 20 1 11 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Out Circuits Configuration Manager gt Protocols gt IP gt Policy Filters gt IGMP gt Static Forwarding Entrie
284. s DVMRP on IP interface 2 3 4 5 dvmrp 2 3 4 5 state disabled dvmrp 2 3 4 5 Using Site Manager To disable and reenable DVMRP on an interface complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Enable parameter Click on Help or see the parameter description on page A 7 6 Click on Apply and then click on Done You return to the Configuration Manager window 117355 D Rev 00 4 31 Configuring IP Multicasting and Multimedia Services Enabling Multicast Migration Between DVMRP and Nonmulticast Interfaces You can enable the flow of multicast and nonmulticast packets between multicast and nonmulticast networks by using IP traffic filters and by setting IGMP static forwarding policies Remember that IGMP must be configured on all DYMRP interfaces Receiving Nonmulticast Traffic and Forwarding As Multicast If you configure an appropriate IP traffic filter a router can receive unicast or broadcast traffic on a DVMRP configured interface The IP traffic filter converts the unicast and broadcast packets to multicast before forwarding the traffic on an outbound interface running a multicast protocol For instructions on how to configur
285. s an integer from 40 through 8000 indicating the number of seconds For example the following command sets the neighbor report timer to 150 seconds 2 minutes 30 seconds dvmrp neighbor timeout 150 dvmrp 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Using Site Manager To set the neighbor report timer complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose DVMRP 4 Choose Global The DVMRP menu opens The DVMRP Global Configuration window opens Set the Neighbor Timeout parameter Click on Help or see the parameter description on page A 4 Click on Save You return to the Configuration Manager window 117355 D Rev 00 Customizing DVMRP Setting the Leaf Timer When DVMRP advertises a route on an interface it waits a period of time for a DVMRP neighbor that is a multicast router to respond positively If no neighbor responds in the given time the router considers the network attached to the interface to be a leaf network The leaf timer allows you specify how long the router waits for a response from a neighbor The leaf timer determines whether or not a network or tunnel local to a given interface is considered to be part of the shortest path to a given source network by any
286. service contract for your Bay Networks product from a distributor or authorized reseller contact the technical support staff for that distributor or reseller for assistance If you purchased a Bay Networks service program contact one of the following Bay Networks Technical Solutions Centers Technical Solutions Center Telephone Number Billerica MA 800 2LANWAN 800 252 6926 Santa Clara CA 800 2LANWAN 800 252 6926 Valbonne France 33 4 92 96 69 68 Sydney Australia 61 2 9927 8800 Tokyo Japan 81 3 5402 7041 XXIV 117355 D Rev 00 Chapter 1 Multicasting and Multimedia Overview This overview covers the following topics Topic Page Multicast Host Groups 1 2 Multi Addr 1 3 Internet Group Management Protocol 1 3 Distance Vector Multicast Routing Protocol 13 Multicasting Extensions to OSPF 1 4 Protocol Independent Multicast 1 4 Resource Reservation Protocol 1 4 Bay Networks Resource Manager 155 IGMP Relay 15 Multicast Table Manager 15 Multicast Migration 1 6 Using BCC show Commands to View Statistics 1 13 117355 D Rev 00 1 1 Configuring IP Multicasting and Multimedia Services Multicast Host Groups IP multicasting is a method for addressing routing and delivering a datagram to a collection of receivers called a host group Host groups can be permanent or transient e A permanent host group has a well known
287. shold RP Data Threshold Click on Help or see the parameter descriptions beginning on page A 39 6 Click on OK You return to the Configuration Manager window Specifying the Threshold Sample Interval The threshold sample interval is the amount of time after which the PIM router calculates the average rate of the current data flow PIM uses the threshold sample interval to determine the data threshold By default the PIM router calculates the rate of the current data flow at 16 second intervals You can specify a value from 16 seconds through 300 seconds 5 minutes to reduce the CPU load from calculation during data forwarding If you specify a sampling interval that is not a multiple of 16 the PIM router uses the multiple of 16 lower than this value 6 22 117355 D Rev 00 Customizing Protocol Independent Multicast To modify the sample threshold interval complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM Global Configuration window opens 5 Set the Threshold Sample Interval parameter Click on Help or see the parameter description on page A 40 6 Click on OK You return to the Configuration Manager window Setting the Defau
288. sociated with this interface When configuring a forwarding cache size you must also keep in mind the TTL value for entries If you specify a large cache size you can specify a larger TTL value A smaller cache requires a smaller TTL for cache entries By default DVMRP uses a TTL of 7200 seconds 2 hours for entries in the forwarding table You can specify a TTL from 300 seconds 5 minutes through 86 400 seconds 24 hours If the neighbor is running mrouted the recommended TTL value is 300 seconds 117355 D Rev 00 4 39 Configuring IP Multicasting and Multimedia Services Specifying the Maximum Number of Table Entries To specify the maximum number of table entries you can use the BCC or Site Manager Using the BCC To specify the maximum number of entries allowed in the forwarding table on this interface navigate toa DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter max cache size lt entries gt entries is an integer indicating the number of entries preallocated for the forwarding table For example the following command causes DVMRP to preallocate space for a forwarding table with 35 entries dvmrp 2 3 4 5 max cache size 35 dvmrp 2 3 4 5 Using Site Manager To specify the number of entries allowed in the forwarding table complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager wi
289. sponds to the query by sending an IGMP host membership response to the IGMP Relay device 3 IGMP Relay forwards the IGMP host membership response to the IP multicast router IP 2 LANA LAN B IGMP host IGMP host membership query IGMP host membership response IP0072A Figure 9 3 IGMP Relay Host Queries and Responses 117355 D Rev 00 9 5 Configuring IP Multicasting and Multimedia Services In addition to soliciting multicast group membership information from directly attached networks the IGMP Relay device relays multicast data packets generated by downstream hosts to the upstream IP multicast router IGMP Relay also receives multicast data packets from the upstream multicast router and forwards them to the appropriate group members In Figure 9 4 for example the following events occur 1 Host 1 generates a datagram addressed to a multicast group and sends it upstream to the IGMP Relay device 2 IGMP Relay forwards the multicast datagram upstream to the IP multicast router IGMP Relay also forwards the packet on a downstream interface to a local group member 3 The IP multicast router sends the datagram out the appropriate interface or interfaces to remote group members Remote EA group P member multicast router
290. st Data ccccesssesteeeeesereeees 9 7 IGMP Relay Routing PrototolS csiriimiinsiininisminanyus en 9 19 DYMRP Unicast Accept Route Policy secssisiiisriinsnii 9 21 XV Figure 9 8 IGMP Relay with Primary and Backup Multicast Routers 0 9 22 Figure 9 9 IGMP Relay with Router Redundancy T ree rere anaa 9 23 xvi 117355 D Rev 00 Tables Table 1 1 Packet Migration Between Multicast and Nonmulticast Networks 1 7 Table 3 1 IGMP Message Types with Hexadecimal and Integer Values 3 10 Table 4 1 DAA Routing Table Eny rcii EEEa 4 6 Table 4 2 Recommended Costs for DVMRP Interfaces n 4 35 Table 4 3 Recommended TTL and Threshold Values eases oboreni seein 114 37 Table 4 4 DVMRP Unicast Accept Policy BCC Parameters ceccceeeeeeereees 4 70 Table 4 5 DVMRP Accept Policy BCC Parameters cccccccseeeeeeeeeeeseeeeeneeees 4 74 Table 4 6 DVMRP Announce Policy BCC Parameters cceccesseesseesseeeneeeeeeees 4 79 Table 9 1 IGMP Relay Forwarding Options cccciidesiseercescstsarveeertesactectseraesnacnees 9 12 Table 9 2 WMP Fely Interice TPES carnosa ensia aaa ka R 9 14 Table 9 3 Unsolicited IGMP Report Interval s cecciccccccccsnctessesdesecteencvordssedasniieesssonsce 9 16 Table B 1 DEMARIO Saas ovate abt daa chen EA B 2 Tabe B2 mrinfo OPTIONS senecccacencs csvisscessertexernoeians E PEE E P T B 4 Table B 3 GOSS UDC NIT AN WEIS ora S B 5 Tab
291. structions MIB Object ID Site Manager Parameters Threshold Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel 1 1 to 254 Specifies in hops a TTL value for the tunnel This value is the minimum IP TTL required for a multicast datagram to be forwarded out this tunnel Use this parameter to control the scope of the datagrams If the IP TTL is less than the threshold value you specify the router drops the datagram 1 3 6 1 4 1 18 3 5 3 12 3 1 8 Forward Cache Size Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel 32 32 to 512 Specifies the maximum number of entries allowed in the forwarding table associated with this tunnel interface When configuring a cache size you must also keep in mind the TTL value for entries If you specify a large cache size a larger TTL value is recommended For a smaller cache a shorter TTL for cache entries is recommended 1 3 6 1 4 1 18 3 5 3 12 3 1 16 Forward Cache TTL Secs Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel 7200 300 to 86 400 seconds Specifies in seconds the TTL for an entry in the forwarding table Select an appropriate value for your configuration from 300 seconds 5 minutes through 86 400 seconds 24 hours 1 3 6 1 4 1 18 3 5 3 12 3 1 17 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Param
292. t via that tunnel Each tunnel takes eight octets the first four of which are for the local IP address and the last four for the remote IP address If you want this filter to apply to any DVMRP tunnel do not specify any value for this parameter If you want this filter to apply to specific DVMRP tunnels specify the IP addresses in 8 octet strings Entering all Fs for the first IP address turns off this filter 1 3 6 1 4 1 18 3 5 3 2 6 16 1 23 Metric Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Announce Policies 0 0 to 31 Specifies a metric for routes specified in the network identification list To advertise the routes with the metric values in the routing table accept the default 0 To specify a different metric value set this parameter as required 1 3 6 1 4 1 18 3 5 3 2 6 16 1 24 A 72 117355 D Rev 00 Site Manager Parameters MOSPF Accept DVMRP Route Policy Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following descriptions to set MOSPF accept DVMRP route policies Enable Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies Enable Enable Disable Enables or disables this policy Set this par
293. tal approvals Without limiting the foregoing Licensee on behalf of itself and its subsidiaries and affiliates agrees that it will not without first obtaining all export licenses and approvals required by the U S Government i export re export transfer or divert any such Software or technical data or any direct product thereof to any country to which such exports or re exports are restricted or embargoed under United States export control laws and regulations or to any national or resident of such restricted or embargoed countries or ii provide the Software or related technical data or information to any military end user or for any military end use including the design development or production of any chemical nuclear or biological weapons 9 General If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction the remainder of the provisions of this Agreement shall remain in full force and effect This Agreement will be governed by the laws of the state of California Should you have any questions concerning this Agreement contact Bay Networks Inc 4401 Great America Parkway PO Box 58185 Santa Clara California 95054 8185 LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT UNDERSTANDS IT AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS LICENSEE FURTHER AGREES THAT THIS AGREEMENT IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN BAY NETWORKS AND LICENSEE WHICH SUPE
294. tch is made based on this average 1 3 6 1 4 1 18 3 5 3 14 1 12 117355 D Rev 00 A 39 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Threshold Sample Interval Configuration Manager gt Protocols gt IP gt PIM gt Global 16 16 to 300 seconds Specifies the interval in seconds at which the PIM router calculates the average rate of the current data flow to determine the data threshold This sampling time is a multiple of 16 seconds If the value specified is not a multiple of 16 the PIM router uses the multiple of 16 lower than this value Use this parameter to reduce the CPU load from calculation during data forwarding Determine a threshold sample interval and enter this value The highest value 300 seconds is equal to 5 minutes 1 3 6 1 4 1 18 3 5 3 14 1 13 Default Join Prune Interval Configuration Manager gt Protocols gt IP gt PIM gt Global 60 5 to 18 724 seconds Specifies the default interval in seconds at which each PIM interface configured on the local router sends join prune messages to its upstream neighbor Specify an interval value that all interfaces configured on the local router can use as the default join prune interval The highest value 18 724 seconds is equal to 5 hours 12 minutes and 4 seconds 1 3 6 1
295. ter Receivers Designated router for LAN IP0093A Figure 6 6 How a Last Hop Router Switches to the Shortest Path Tree 6 18 117355 D Rev 00 Customizing Protocol Independent Multicast Customizing PIM Globally When you enable PIM default values are in effect for most parameters You customize PIM by modifying parameters as described under the following topics Topic Page Disabling and Reenabling PIM Globally 6 20 Modifying the Last Hop Threshold 6 20 Modifying the Rendezvous Point Threshold 6 21 Specifying the Threshold Sample Interval 6 22 Setting the Default Join Prune Interval for the Router 6 23 Modifying Neighbor Hello Messages 6 24 Modifying the Candidate BSR Configuration 6 25 Modifying the Candidate RP Configuration 6 26 Setting the Register Suppression Timer 6 27 Setting the Probe Timer 6 28 Enabling and Disabling Cisco Router Compatibility 6 29 Logging PIM Messages 6 30 117355 D Rev 00 6 19 Configuring IP Multicasting and Multimedia Services Disabling and Reenabling PIM Globally To disable and reenable PIM globally on the router complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose PIM The PIM menu opens 4 Choose Global The PIM
296. ter Click on Help or see the parameter description on page A 35 6 Click on OK You return to the Configuration Manager window 117355 D Rev 00 5 5 Configuring IP Multicasting and Multimedia Services Specifying a Maximum Number of Queued Packets By default MOSPF queues a maximum of 64 packets per slot for all dataflows You can control how many multicast packets can be queued on each slot for all flows before MOSPF finishes building multicast trees e If you disable queuing packets are dropped before the tree is calculated e Ifyou specify a maximum value the first few data packets for a multicast flow are queued before MOSPF finishes building the multicast tree To disable queuing or to specify a different maximum number of queued packets complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose OSPF MOSPF The OSPF menu opens 4 Choose Global The Edit OSPF Global Parameters window opens 5 Set the Multicast Max Queued Pkts parameter Click on Help or see the parameter description on page A 35 6 Click on OK You return to the Configuration Manager window 5 6 117355 D Rev 00 Customizing OSPF Multicast Extensions Enabling Dynamic TTL You can configure MOSPF to drop multicast packets that do not have a
297. the duration of time that this route will be included in routing updates without the receipt of a subsequent update indicating that the route is reachable The difference between this value and the Route Expiration Timeout value represents the duration of time that the route will be advertised as unreachable without subsequent refreshment Enter a value from 40 through 8000 seconds 2 hours 13 minutes and 20 seconds that is greater than the value you specified for Route Expiration Timeout to allow for sufficient time for the route to be advertised as unreachable 1 3 6 1 4 1 18 3 5 3 12 1 9 Estimated Routes Configuration Manager gt Protocols gt IP gt DVMRP gt Global 25 An integer of 10 or greater Specifies the estimated number of routes in the routing table Enter a value that the router can use for preallocating routing tables For an MBone implementation a value of 3000 or higher is recommended Note that routes are kept on a per source network basis independent of multicast groups This number must include a route for every network that is local to a circuit configured for multicasting This allows the router to utilize memory efficiently Exceeding this size during router operation will not cause an error but may cause the router to consume more memory than is required 1 3 6 1 4 1 18 3 5 3 12 1 10 117355 D Rev 00 A 5 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options F
298. the learned network use the default null 1 3 6 1 4 1 18 3 5 3 2 6 15 1 9 A 66 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Incoming Gateways Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Null A list of IP addresses Specifies the addresses of one or more routers that can send DVMRP updates to this router If you configure a list this policy applies to DVMRP advertisements from the routers in the list To apply this policy to any router use the default null If non null the octet string contains one or more 4 octet IP addresses 1 3 6 1 4 1 18 3 5 3 2 6 15 1 10 Received on Interfaces Configuration Manager gt Protocols gt IP gt Policy Filters gt DVMRP gt Accept Policies Null A list of IP addresses Specifies a list of inbound interfaces This policy applies to advertisements that arrive on the interfaces on this list To create a policy that applies to advertisements that arrive on any interface accept the default null 1 3 6 1 4 1 18 3 5 3 2 6 15 1 11 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions
299. ticasting and Multimedia Services Unicast network Multicast traffic 1 IGMP go Configure IGMP static y Router with forwarding policy as follows _DVMPP or MOSPF _ __ multicast protocols Forwarding Mode Static to Dynamic on outgoing interfaces In Circuit Specify interface 1 Traffic forwarded per multicast protocol rules Multicast network Host Multicast receivers IP0103A Forwarding Multicast Traffic from a Static Nonmulticast Figure 1 3 Network to a Dynamic Multicast Network 117355 D Rev 00 Configure IGMP static forwarding policy as follows Forwarding Mode Static In Circuit Specify interface 1 Out Circuits Specify interfaces 2 and 3 Multicast traffic Multicasting and Multimedia Overview v 1IGMP Router without DVMRP or MOSPF multicast protocols 2 IGMP 3 IGMP IP0102A Figure 1 4 Forwarding Multicast Traffic over Static Interfaces 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Configuring Multicast Migration To configure your network to transfer both multicast and nonmulticast traffic using multicast migration tools follow these steps 1 Make sure that IGMP is configured on the router interfaces that will be receiving or forwarding the multicast or nonmulticast traffic IGMP is automatically enab
300. ting and Multimedia Services Unicast Routing Protocols on the IGMP Relay Device An IGMP Relay device does not run any multicast routing protocols You can configure a unicast routing protocol RIP or OSPF on the IGMP Relay device and add it to the upstream IP interface to the multicast router The unicast protocol advertises the networks attached locally to the IGMP Relay device You can configure the IGMP Relay device with no routing protocols In this case you must statically insert routes to the IGMP Relay device s locally attached networks Routing Protocols on the Multicast Router The IGMP Relay device supports the following types of multicast router e MOSPF boundary router For information see Configuring MOSPF for Use with IGMP Relay on page 9 18 e DVMRP router For information see Configuring a DVMRP Router for Use with IGMP Relay on page 9 20 9 8 117355 D Rev 00 Configuring IGMP Relay Enabling and Disabling IGMP Relay Globally By default IGMP Relay is disabled on the router You can use the BCC or Site Manager to enable and disable IGMP Relay globally Using the BCC To enable or disable IGMP Relay on the router navigate to the global IGMP prompt for example box ip igmp and enter relay The IGMP Relay prompt appears IGMP Relay is now running and enabled globally To disable IGMP Relay navigate to the IGMP Relay prompt and enter delete For example the following comma
301. tions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Refresh Multiple Configuration Manager gt Protocols gt IP gt RSVP gt Circuit 3 1 to 65 536 Specifies the number of refresh intervals that must elapse before a PATH or RESV message that is not refreshed will time out Specify the number of refresh intervals for a PATH or RESV message 1 3 6 1 4 1 18 3 5 16 1 1 6 1 9 RSVP TTL Configuration Manager gt Protocols gt IP gt RSVP gt Circuit 0 no TTL override 0 to 255 Specifies a TTL value used on this interface for messages that this node originates If set to a value other than 0 the node determines the TTL via other means This overrides the IP TTL value Set the TTL to 0 if you want the node to use the IP TTL value 1 3 6 1 4 1 18 3 5 16 1 1 6 1 10 Refresh Interval Configuration Manager gt Protocols gt IP gt RSVP gt Circuit 3000 An integer indicating the refresh interval in hundredths of a second Specifies the minimum period between refresh transmissions of a given PATH or RESV message on an interface Specify the interval in hundredths of a second The default 3000 hundredths of a second is equal to 30 seconds 1 3 6 1 4 1 18 3 5 16 1 1 6 1 11 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter
302. tting OSPF global and interface parameters This chapter covers the following topics Topic Page MOSPF Concepts and Terminology 5 2 Configuring MOSPF Globally 5 4 Enabling Multicast Migration Between MOSPF and Nonmulticast Interfaces 5 8 Configuring Multicast Forwarding on an OSPF Interface 5 9 Configuring Multicast Capable External Routes 5 10 Configuring MOSPF Accept DVMRP Route Policies 11 117355 D Rev 00 5 1 Configuring IP Multicasting and Multimedia Services MOSPF Concepts and Terminology Multicast OSPF MOSPF is a multicasting extension of the OSPF protocol that allows a router to forward multicast IP traffic within an OSPF Version 2 autonomous system AS An OSPF environment typically consists of an AS divided into multiple areas connected by an OSPF backbone You can configure an OSPF MOSPF router as one of the following e Miulticasting internal router IR that establishes neighbor relationships with adjacent routers within an area e Multicasting border router BR with interfaces to one or more areas and to the OSPF backbone e Multicasting AS boundary router ASBR with one or more interfaces to external autonomous systems Figure 5 1 shows an OSPF MOSPFE AS consisting of two OSPF areas connected by an OSPF backbone 5 2 117355 D Rev 00 Customizing OSPF Multicast Extensions eee eee ee ee ee ee eee ee ee ee ee ee ee ey Key IR BR ASBR Bounda
303. tunnel interface When configuring a cache size you must also keep in mind the TTL value for entries If you specify a large cache size you can specify a larger TTL value A smaller cache requires a smaller TTL for cache entries By default DVMRP assigns a TTL value of 7200 seconds 2 hours to an entry in a tunnel forwarding table You can use the BCC or Site Manager to assign a value from 300 seconds 5 minutes through 86 400 seconds 24 hours Specifying the Forwarding Table Size To specify the forwarding table size you can use the BCC or Site Manager Using the BCC To specify the size of the forwarding table for a tunnel navigate to a tunnel prompt for example box tunnels dvmrp 2 2 2 2 2 2 4 5 and enter cache size lt enitries gt entries is the number of entries that DVMRP preallocates for the forwarding table The default value is 32 entries For example the following command causes DVMRP to preallocate space for a forwarding table with 50 entries for tunnel 2 3 4 5 4 4 2 3 dvmrp 2 3 4 5 4 4 2 3 cache size 50 dvmrp 2 3 4 5 4 4 2 3 117355 D Rev 00 4 59 Configuring IP Multicasting and Multimedia Services Using Site Manager To configure a cache size for the forwarding table complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose
304. twork associated with this interface e Forwards multicast datagrams on this interface in native mode that is as multicast datagrams Using the BCC or Site Manager you can disable multicast support on the interface Using the BCC To disable or reenable multicast support navigate to a DVMRP interface prompt for example box ethernet 2 2 ip 2 3 4 5 255 255 255 0 dvmrp and enter routing lt state gt state is one of the following enabled default disabled For example the following command disables DVMRP multicast routing on IP interface 2 3 4 5 dvmrp 2 3 4 5 routing disabled dvmrp 2 3 4 5 117355 D Rev 00 4 33 Configuring IP Multicasting and Multimedia Services Using Site Manager To disable and reenable multicast support complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose DVMRP The DVMRP menu opens 4 Choose Circuit The DVMRP Circuit Parameters window opens 5 Set the Route Enable parameter Click on Help or see the parameter description on page A 8 6 Click on Apply and then click on Done You return to the Configuration Manager window 4 34 117355 D Rev 00 Calculating the Cost of an Interface Customizing DVMRP By default an interface has a cost of 1 Bay Networks recommends the values spe
305. uing Algorithm parameter Click on Help or see the parameter description on page A 29 4 Click on OK You return to the Configuration Manager window 8 6 117355 D Rev 00 Reserving Line Resources Specifying the LRM Policing Algorithm By default LRM uses the leaky bucket policing algorithm for reserved traffic to make sure that all traffic using reserved bandwidth follows the flowspec that appears in the reserve message For the controlled load service LRM attempts to carry any packets that do not adhere to the flowspec You can disable the policing algorithm if you know that an upstream router is policing traffic or that the applications generating the reserved traffic consistently adhere to the flowspec and do not require policing Note that leaky bucket policing requires additional processing by the router To specify the LRM policing algorithm complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on any connector for a line that is configured for RSVP The Edit Connector window opens Click on Edit Line Resources in the Edit Connector window The Edit Line Resources window opens Set the Policing Algorithm parameter Click on Help or see the parameter description on page A 30 Click on OK You return to the Configuration Manager window 117355 D Rev 00 8 7 Configuri
306. ult Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Report Depend Probe Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel Disable Enable Disable Specifies the conditions under which DVMRP accepts a route report According to the protocol DVMRP must send a probe packet before sending the route report packet to its neighbors Some vendor implementations however do not send probes before sending reports By default DVMRP processes all received route reports Enable this feature if you want DVMRP to process only routes received from neighbors that have sent probe packets in accordance with the protocol 1 3 6 1 4 1 18 3 5 3 12 3 1 28 Prune Life Time Configuration Manager gt Protocols gt IP gt DVMRP gt Tunnel 7200 0 to 86 400 seconds Specifies in seconds the lifetime of a prune message that DVMRP sends to a neighbor on this tunnel Set this parameter from 0 through 86 400 seconds 24 hours The default 7200 seconds is equal to 2 hours 1 3 6 1 4 1 18 3 5 3 12 3 1 29 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Local IP Address Configuration Manager gt Protocols gt I
307. ulticast traffic only to those routers that want to receive traffic for a particular multicast group PIM reduces the traffic flow over WAN links and reduces overhead costs for processing unwanted multicast packets PIM is independent of any specific unicast routing protocol but does require the presence of a unicast routing protocol somewhere in the internetwork PIM uses the information from the unicast routing table to create and maintain the shared multicast tree that enables routers to communicate in a PIM network The Bay Networks implementation of PIM supports only sparse mode A typical PIM sparse mode network consists of several multipoint data streams each targeted to a small number of LANs in the internetwork For example customers whose networks consist of multiple hosts on different LANs can use PIM to simultaneously access a video data stream such as a video teleconference on a different subnet In sparse mode PIM uses a shared multicast distribution tree that is rooted at the central core point of the PIM network known as the rendezvous point RP router Sources use RPs routers to identify themselves to other routers on the network receivers use RPs routers to learn about new sources PIM is scalable making it ideal for a large network such as an ISP 6 2 117355 D Rev 00 Customizing Protocol Independent Multicast This section covers the following topics Topic Page Comp
308. unction Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Neighbor Probe Interval Configuration Manager gt Protocols gt IP gt DVMRP gt Global 10 5 to 30 seconds Specifies how often DVMRP should send a probe on interfaces from which no neighbors have been heard If the neighbor is running DVMRP mrouted ensure that the probe interval value matches the value used by the neighbor 1 3 6 1 4 1 18 3 5 3 12 1 11 Route Switch Timeout Configuration Manager gt Protocols gt IP gt DVMRP gt Global 140 20 to 2000 seconds Specifies in seconds how long DVMRP should wait without receiving a subsequent route update from the original neighbor before switching to a different neighbor advertising equal cost for this route Enter a value from 20 through 2000 seconds 33 minutes 20 seconds If the neighbor is running DVMRP mrouted you should accept the default value 140 seconds 1 3 6 1 4 1 18 3 5 3 12 1 12 Debug Level Configuration Manager gt Protocols gt IP gt DVMRP gt Global 0 0 or a debug level Turns the DVMRP log on or off for DVMRP debugging messages and specifies the level of debug messages By default 0 the log is turned off Specify a level only when directed by Customer Support personnel to investigate a problem 1 3 6 1 4 1 18 3 5
309. ure if you want DVMRP to listen for a default route on this interface 1 3 6 1 4 1 18 3 5 3 12 2 1 25 A 10 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Report Depend Probe Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit Disable Enable Disable Specifies the conditions under which DVMRP accepts a route report According to the protocol DVMRP must send a probe packet before sending the route report packet to its neighbors Some vendor implementations however do not send probes before sending reports By default DVMRP processes all received route reports Enable this feature if you want DVMRP to process only routes received from neighbors that send probe packets 1 3 6 1 4 1 18 3 5 3 12 2 1 26 Prune Life Time Configuration Manager gt Protocols gt IP gt DVMRP gt Circuit 7200 0 to 86 400 seconds Specifies in seconds the lifetime of a prune message that DVMRP sends to a neighbor on this interface Enter a value from 0 through 86 400 seconds 24 hours The default 7200 seconds is equal to 2 hours 1 3 6 1 4 1 18 3 5 3 12 2 1 27 117355 D Rev 00 Configuring IP Multicasting and Multimedia Services DVMRP Tunnel Parameters Parameter Path Default Options Function Instructions MIB Object ID Para
310. ust be configured on the interface Using the BCC To create a DVMRP unicast accept policy navigate to the global DVMRP prompt for example box ip dvmrp and enter unicast accept lt po name gt lt polname gt is the name of the DVMRP unicast accept policy 117355 D Rev 00 4 69 Configuring IP Multicasting and Multimedia Services For example the following command creates a DVMRP unicast accept policy named dvmrppol3 dvmrp unicast accept dvmrppol3 unicast accept dvmrppol3 dvmrp To customize a DVMRP unicast accept policy set one or more of the following parameters Table 4 4 Table 4 4 DVMRP Unicast Accept Policy BCC Parameters Parameter Values d default Description action accept d ignore Specifies whether to accept or ignore the interfaces or networks for a route that matches this policy To import the matching route from the IP unicast routing table to the DVMRP routing table specify accept If you do not want to import the matching route specify ignore inject null d Specifies a list of IP networks that DVMRP injects into the DVMRP list of IP addresses and routing table in place of the advertised networks This parameter masks has meaning only if the action is set to accept To inject the advertised network use the default null Use this parameter to insert an aggregate or default network along with the actual network interface null d To apply th
311. ute 1 3 6 1 4 1 18 3 5 3 2 6 14 1 7 DVMRP Networks Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies An empty list A list of network identifiers Specifies which networks match this policy Each identifier consists of a network number a mask and a flag to indicate whether the ID refers to a specific network or a range of networks Accept the default to match any route or specify the networks that match this policy 1 3 6 1 4 1 18 3 5 3 2 6 14 1 5 A 74 117355 D Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Inject List Configuration Manager gt Protocols gt IP gt Policy Filters gt MOSPF gt Accept DVMRP Route Policies An empty list See below Advertises networks that differ from the actual network in the routing table This octet string should only be non null if the action is Accept and if you want to advertise networks that differ from the actual network in the routing table For example if a number of networks in a certain range are in the table an aggregate could be advertised instead of the individual networks If non null the octet string contains one or more 2 tuples in the following form First 4 octets network number Next 4 octets network mask Upon receiving a route that matches this filter the router advertises all networks in this list If the list is null
312. uter LRM Line Resource Manager LSA link state advertisement MBone multicast backbone MCTI multichannel T1 MIB management information base MOSPF multicasting extensions to OSPF MTM Multicast Table Manager OSPF Open Shortest Path First PIM Protocol Independent Multicast PPP Point to Point Protocol QoS quality of service RFC Request for Comments RIP Routing Information Protocol RP rendezvous point RSVP Resource Reservation Protocol SPT shortest path tree TTL time to live UDP User Datagram Protocol xxii 117355 D Rev 00 Preface Related Publications For more information about IP services refer to the following publications BCC show Commands for IP Services Bay Networks part number 305755 A Rev 00 Provides descriptions of all show commands for IP services including the commands that display IGMP and DVMRP configuration and statistical data Configuring IP ARP RIP and OSPF Services Bay Networks part number 117356 E Rev 00 Provides a description of IP ARP RIP and OSPF services and instructions for configuring them Configuring IP Exterior Gateway Protocols BGP and EGP Bay Networks part number 305752 A Rev 00 Provides a description of Border Gateway Protocol BGP and Exterior Gateway Protocol EGP services and instructions for configuring them Configuring GRE NAT RIPSO and BFE Services Bay Networks part number 305753 A Rev 00 Provides a description of Generic Routing Encapsulation GRE
313. vation Latency parameter line resources 8 14 A 33 Resource Manager 1 5 8 3 Resource Reservation Protocol See RSVP RFC 1075 4 54 round robin multiline select algorithm line resources 8 12 route costs DVMRP defined 4 10 interface 4 35 tunnel 4 56 Route Delay parameter RSVP circuit 7 12 A 58 Route Enable parameter DVMRP circuit 4 34 A 8 Route Expiration Timeout parameter DVMRP global 4 14 A 4 Route Listen parameter DVMRP tunnel 4 64 A 14 route metric defined 4 5 Route Preference parameter DVMRP unicast accept policies 4 72 A 61 Route Supply parameter DVMRP tunnel 4 63 A 14 Route Switch Timeout parameter DVMRP global 4 24 A 6 Route Type parameter DVMRP unicast accept policies 4 72 A 63 RP Data Threshold parameter PIM global 6 22 A 39 117355 D Rev 00 RSVP Resource Reservation Protocol bandwidth estimated 8 4 reservable 8 5 deleting from an interface 7 14 disabling 7 7 displaying information using Technician Interface B 5 enabling 7 7 estimated bandwidth 8 4 lifetime multiplier 7 9 logging messages 7 6 messages logging event 7 6 multiplier lifetime 7 9 refresh blockade 7 10 overview 7 1 refresh blockade multiplier 7 10 refresh timer 7 8 reservable bandwidth 8 5 route delay value 7 12 rsvp command B 5 setting parameters using Technician Interface B 5 slot configuring on 7 5 starting 2 10 TTL override 7 11 UDP encapsulation 7
314. with the highest configured priority as the primary BSR for the domain If two C BSRs have equal priority then PIM elects the C BSR with the higher IP address as the BSR for the domain Set to Enable to configure a PIM router as a C BSR Set to Disable to prevent a PIM router from being elected as the primary BSR for the domain 1 3 6 1 4 1 18 3 5 3 14 1 20 117355 D Rev 00 A 41 Configuring IP Multicasting and Multimedia Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Candidate BSR IP Address Configuration Manager gt Protocols gt IP gt PIM gt Global 0 0 0 0 Any valid IP address or a circuitless IP address Specifies the IP address or circuitless IP address for a C BSR PIM uses the C BSR to distribute the RP set information to all routers in the PIM domain Specify an IP address or circuitless IP address for each C BSR in a PIM domain in dotted decimal notation 1 3 6 1 4 1 18 3 5 3 14 1 21 Candidate BSR Priority Configuration Manager gt Protocols gt IP gt PIM gt Global 0 0 to 255 Specifies the priority level assigned to the C BSR The higher the number the higher the priority PIM elects the C BSR with the highest priority as the primary BSR for the PIM domain If two C BSRs have equal
315. your version of BayRS 117355 D Rev 00 xix Configuring IP Multicasting and Multimedia Services Text Conventions This guide uses the following text conventions angle brackets lt gt bold text braces brackets ellipsis points Indicate that you choose the text to enter based on the description inside the brackets Do not type the brackets when entering the command Example If the command syntax is ping lt p_address gt you enter ping 192 32 10 12 Indicates command names and options and text that you need to enter Example Enter show ip alerts routes Example Use the dinfo command Indicate required elements in syntax descriptions where there is more than one option You must choose only one of the options Do not type the braces when entering the command Example If the command syntax is show ip alerts routes you must enter either show ip alerts or show ip routes but not both Indicate optional elements in syntax descriptions Do not type the brackets when entering the command Example If the command syntax is show ip interfaces alerts you can enter either show ip interfaces or show ip interfaces alerts Indicate that you repeat the last element of the command as needed Example If the command syntax is ethernet 2 1 lt parameter gt lt value gt you enter ethernet 2 1 and as many parameter value pairs as needed XX 117355

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