Avaya Configuring SMDS Services User's Manual
Contents
1. IP Address 128 1 1 3 P IP Address 128 1 1 2 Addr Mask 255 255 255 0 Addr Mask 255 255 255 0 IP Address 150 50 1 2 IP Address 150 50 1 1 Addr Mask 255 255 255 0 Addr Mask 255 255 255 0 Figure 2 7 Multigroup Configuration 2 9 Configuring SMDS Services To configure multigroup follow these steps 1 In your SMDS configuration parameters enter addresses in the Group Address ARP Address and Individual Address parameters described in Chapter 3 of this book In your IP interface configuration enter the same addresses that you entered in the SMDS parameters in the previous step The equivalent IP parameters are SMDS Group Address SMDS ARP Req Address and MAC address Refer to Configuring IP Services for information about IP these parameters Add a new IP interface with a unique IP subnetwork address This address should include a network subnet and host address Enter a new Group Address ARP Address and Individual Address for this new IP interface The IP interface parameters override these same parameters in the SMDS configuration for this and subsequent IP interfaces Configuring Synchronous Lines for SMDS If you enable SMDS on a circuit Site Manager automatically sets the following synchronous line parameters Table 2 1 Synchronous Line Parameter Settings for SMDS Parameter Value BOFL Disable Promiscuous Enable Servic2. DSU CSU SMDS Router Network HSSI or Synchronous Interface Figure 2 1 Access to SMDS Network via a Router and DSU CSU The router also supports low speed SMDS through the SNI and DXI specifications standardized by the SMDS Interest Group If you are running low speed SMDS you can extend the DXI to the SMDS network thereby eliminating the need for a special SMDS DSU CSU Any synchronous interface including MCTI or MCEI link modules physically connects the router and the network Figure 2 2 2 1 Configuring SMDS Services SMDS Router L m Network l Synchronous or MCT1 MCE1 Interface Low speed only c Figure 2 2 Low Speed Access to SMDS Network Another low speed SMDS option is to use a low speed DSU CSU to connect to the network In this case a V 35 cable physically connects the router to the DSU CSU Figure 2 3 EL Low Speed SMDS Router N DSU CSU Network V 35 Interface Figure 2 3 Low Speed Access to SMDS Network via a Low Speed DSU 2 2 Implementation Notes Requirements for the Router and the DSU CSU The next sections provide configuration requirements for the router and the DSU CSU to implement high speed SMDS DXI Protocol Requirements Version 3 2 of the DXI protocol manages the data exchange between the router and the DSU CSU Becau
3. brackets italic text quotation marks screen text ellipsis points vertical line About This Guide Separates menu and option names in instructions Example Protocols AppleTalk identifies the AppleTalk option in the Protocols menu Indicates text that you need to enter and command names in text Example Use the dinfo command Indicate optional elements You can choose none one or all of the options Indicates variable values in command syntax descriptions new terms file and directory names and book titles Indicate the title of a chapter or section within a book Indicates data that appears on the screen Example set Bay Networks Trap Monitor Filters Horizontal and vertical ellipsis points indicate omitted information Indicates that you enter only one of the parts of the command The vertical line separates choices Do not type the vertical line when entering the command Example If the command syntax is show at routes nets you enter either show at routes or show at nets but not both Ordering Bay Networks Publications To purchase additional copies of this document or other Bay Networks publications order by part number from Bay Networks Press at the following numbers You may also request a free catalog of Bay Networks Press product publications Phone FAX U S Canada FAX International 1 800 845 9523 1 800 582 8000 1 916 939 1010 XV
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5. 9 3 1 7 3 4 Chapter 4 Editing SMDS Parameters This chapter provides details on how to edit SMDS parameters for the SMDS interfaces on your router Note You must have already configured at least one SMDS interface on the router in order to edit SMDS parameters If you have not yet configured an SMDS interface or want to add additional SMDS interfaces see Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software Access SMDS parameters from the Configuration Manager window Figure 4 1 Refer to Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software for instructions on how to access this window 4 1 Configuring SMDS Services local LOCAL FILE gr pet nee tober L d i Backbone Link Mode BLA HIH Version 9 00 Color Key Used Teach lp kon Donner boss Ber Quad Syr ICH 5430 Thal mus Baal DT DDR den Single Sane Single Toke IEN Empty Slot Bustes Kesource Horu le Figure 4 1 Configuration Manager Window Editing SMDS Interface Parameters To edit SMDS interface parameters follow these steps 1 Begin at the Configuration Manager window Figure 4 1 2 Select Protocols gt SMDS gt Interfaces The Configuration Manager displays the SMDS Interface List window Figure 4 2 4 2 Editing SMDS Parameters R des Fipp Ly value i Help Individu
6. Configuring SMDS Services Acronyms ARP ATM CRC DSU CSU DS DS3 DXI HSSI IEEE IP IPX LAN LMI MAC MAN OSI OSPF PDU PVCs RIP SIP SMDS SNI SNMP WAN XNS Address Resolution Protocol Asynchronous Transfer Mode Cyclic Redundancy Check Digital Service Unit Channel Service Unit Digital Service Level 1 Digital Service Level 3 data exchange interface high speed serial interface Institute of Electrical and Electronic Engineers Internet Protocol Internet Packet Exchange local area network Local Management Interface media access control metropolitan area network Open Systems Interconnection Open Shortest Path First protocol data unit permanent virtual circuits Routing Information Protocol SMDS Interface Protocol Switched Multimegabit Data Services subscriber network interface Simple Network Management Protocol wide area network Xerox Network System xvi Chapter 1 SMDS Overview Switched Multimegabit Data Service SMDS is a public high speed packet switched network service that enables you to connect local area networks LANs across wide area networks WANs SMDS technology combines cell relay technology and IEEE Standard 802 6 the link control protocol standard that controls cell transmission To send information across the network SMDS divides data into fixed 53 byte cells The use of cell technology makes SMDS well suited for traffic that consumes high bandwidth for short peri
7. Sikhs teeta aa added xiv World Wide Web WEE xiv How to Get ao xiv CONVENTIONS eege hutu eder e xiv Ordering Bay Networks Publications sse eee eee ee eee XV e Kei xvi Chapter 1 SMDS Overview How SMDS Sends LAN Data over WANS sse eee eee 1 2 SMDS Interface Protocol sse eee 1 3 Data Exchange Interface Protocol sss ssse esse eee eenn nenen 1 4 POU ASSOMDIy ud Ga a AG 1 5 SMDS Individual Addresses sss 1 7 SMDS Group s e l TT 1 7 For More Information about SMDS sese eee eee ee ee 1 7 Chapter 2 Implementation Notes Requirements for the Router and the DSU CSU sse eee 2 3 DXI Protocol Requirements AAA 2 3 Local Management Interface sese eee ee eee eee essere enesenn eee nenen 2 3 Protocols Supported by SMDS TT 2 4 Priority of Heartbeat Poll Messages sese eeeseee esse eree ee eser neee 2 4 A T ue 2 5 M ultigroup anse HT 2 7 Configuring Synchronous Lines for SMDS sss eee ee eee eee 2 10 Chapter 3 Enabling SMDS Using the MIB Object ID 3 1 Enabling SMDS on an Interface T 3 2 Chapter 4 Editing SMDS Parameters Editing SMDS Interface Parameters ee eee eee eee 4 2 SMDS Interface Parameter Descriptions 4 4 Deleting SMDS from the Router sse eee eee 4 8 Appendix A SMDS Default Settings Index vi Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 3 1 Figure 4 1 Figure 4 2 Figures SMDS Sample Network 1 2 SMDS Interfa
8. T1 lines Classes 4 Mb s through 34 Mb s are for T3 lines SMDS also offers low speed SMDS classes which operate at fractional T1 E1 speeds 56 Kb s up to 64 Kb s How SMDS Sends LAN Data over WANs LAN data is typically connectionless data This means that it has addressing information in each frame so there is no need for a prior connection between the origination and destination devices WAN data is typically connection oriented data This means that it needs a virtual circuit that is a predefined path across physical lines between the two connection points prior to sending data SMDS provides connectionless data transfer across a wide area network without establishing a logical end to end connection 1 2 SMDS Overview SMDS Interface Protocol The SMDS Interface Protocol SIP defines SMDS addressing formatting framing and error detection requirements The SIP has three levels that are similar to but do not match the protocol layers that make up the OSI protocol model e Level 3 specifies the addressing formatting and encapsulation of packet data referred to as Level 3 PDUs e Level 2 specifies the segmentation of Level 3 Protocol Data Units PDUs into short fixed length SMDS cells referred to as Level 2 PDUs e Level 1 specifies the physical connectivity that enables transmission Figure 1 2 illustrates the SIP protocol stack Level 3 Encapsulates Data into PDUs Level 2 Segments Data into 53
9. address specified by the SMDS subscription agreement that you have with your SMDS provider Provides a MAC layer address Enter the complete SMDS E 164 address for example C15082348734FFFF To configure this parameter for a multigroup or multinet configuration refer to Chapter 2 for instructions For information about IP refer to Configuring IP Services 1 3 6 1 4 1 18 3 5 9 3 1 5 Group Address E1FFFFFFFFFFFFFF A complete SMDS E 164 address specified by the SMDS subscription agreement that you have with your SMDS provider Provides a MAC layer multicast address for this SMDS interface Enter the complete SMDS E 164 group address for example E16175552876FFFF To configure this parameter for a multigroup or multinet configuration refer to Chapter 2 for instructions For information about IP refer to Configuring IP Services 1 3 6 1 4 1 18 3 5 9 3 1 6 3 3 Configuring SMDS Services Parameter Default Options Function Instructions MIB Object ID ARP Address E1FFFFFFFFFFFFFF A complete SMDS E 164 address specified by the SMDS subscription agreement that you have with your SMDS provider Provides an address resolution multicast address Enter the complete SMDS E 164 address for example E16175552876FFFF To configure this parameter for a multigroup or multinet configuration refer to Chapter 2 for instructions For information about IP refer to Configuring IP Services 1 3 6 1 4 1 18 3 5
10. and host address 4 Enter the same Group Address ARP Address and Individual Address that you entered in Step 2 for this new IP interface Note You may also configure many individual addresses for an SMDS group address but ensure that each individual address within a group is unique Multigroup Multigroup is a feature of the Internet Protocol IP that enables you to configure multiple SMDS group addresses on the same SNI which is the access interface to the SMDS network The router implements multigroup according to RFC 1209 For information about IP refer to Configuring IP Services Figure 2 6 shows a multigroup configuration Group Address Individual Address gt IP Address Group Address Individual Address amp IP Address Group Address Individual Address amp IP Address Figure 2 6 Multigrouping SMDS and IP Addresses Once you configure an SMDS group address you can then assign this group address to at least one IP subnetwork An IP address identifies the subnetwork 2 7 Configuring SMDS Services By associating or pairing a different SMDS group address with each IP address you achieve multigrouping A multigroup configuration enables you to use one SMDS physical line SND to connect many nodes located on different subnetworks It also allows you to limit broadcast and multicast traffic such as Routing Information Protocol RIP updates Address Resolutio
11. byte PDUs Level 1 Prepares Level 2 PDUs for the Physical Medium Figure 1 2 SMDS Interface Protocol Stack SIP specifies that the SMDS source and destination addresses reside in the Level 3 PDU header Figure 1 3 Each header contains a MAC level address in an E 164 address format E 164 formats are 64 bits long and provide both individual and multicast addresses Network switches use the address information in the header to route the PDU to its destination Configuring SMDS Services Header Trailer PEP EE EEE aael Figure 1 3 SMDS Level 3 PDU One or more SMDS devices for example DSUs and routers can perform the tasks of the three SIP levels as described in the next section Data Exchange Interface Protocol For SMDS high speed access classes that is speeds from 1 2 Mb s to 34 Mb s the SMDS Interest Group SIG wanted to simplify the integration of SMDS into existing network equipment and to hasten SMDS into the market To do this they divided the functions defined by the SIP levels between devices that handle local network packets for example a router and devices that interface with the digital services provided by common carriers a DSU CSU The Data Exchange Interface DXI protocol defines this division of tasks and describes the router and DSU CSU relationship Figure 1 4 Refer to the next section for more information 1 4 SMDS Overview SMDS Network SM
12. guide you must complete the following procedures e Create and save a configuration file that has at least one SMDS interface e Retrieve the configuration file in local remote or dynamic mode For instructions refer to Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software Bay Networks Customer Support Bay Networks provides live telephone technical support to our distributors resellers and service contracted customers from two U S and three international support centers If you have purchased your Bay Networks product from a distributor or authorized reseller contact the technical support staff of that distributor or reseller for assistance with installation configuration troubleshooting or integration issues xii About This Guide Customers also have the option of purchasing direct support from Bay Networks through a variety of service programs The programs include priority access telephone support on site engineering assistance software subscription hardware replacement and other programs designed to protect your investment To purchase any of these support programs including PhonePlus for 24 hour telephone technical support call 1 800 2LANWAN Outside the U S and Canada call 408 764 1000 You can also receive information on support programs from your local Bay Networks field sales office or purchase Bay Networks support directly from your
13. 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 Trademarks of Bay Networks Inc ACE AFN BCN BLN BN CN FRE LN Optivity SynOptics SynOptics Communications Wellfleet and the Wellfleet logo are registered trademarks and AN ANH ASN BaySIS BayStack BCNX BLNX BNX EZ Internetwork EZ LAN FN PathMan PhonePlus PPX Quick2Config RouterMan SPEX Bay Networks Bay Networks Press the Bay Networks logo and the SynOptics logo are trademarks of Bay Networks Inc Third Party Trademarks All other trademarks and registered trademarks are the property of their respective owners 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 are 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 ma
14. traffic Enter Enable if you want the router to check incoming addresses and control the calls it receives If not accept the default Disable To determine whether the router is rejecting addresses use the Technician Interface to look under the object w SmdsCircuitEntry at the attribute wfSmdsCircuitAddrVerifyDiscards Refer to Using Technician Interface Software for more information 1 3 6 1 4 1 18 3 5 9 3 1 17 Deleting SMDS from the Router To delete SMDS from all router circuits complete the following steps 1 From the Configuration Manager window refer to Figure 4 1 select Protocols gt SMDS gt Delete SMDS The Configuration Manager prompts Do you R Click on FALLY want to delete SMDS OK The Configuration Manager returns you to the Configuration Manager window SMDS is no longer configured on the router 4 8 Appendix A SMDS Default Settings This appendix lists the default settings for SMDS Use the Configuration Manager to edit any of the default settings listed here Table A 1 SMDS Interface Parameters Parameter Default Enable Enable Individual Address C1FFFFFFFFFFFFFF Group Address E1FFFFFFFFFFFFFF ARP Address E1FFFFFFFFFFFFFF Heartbeat Poll Enable Heartbeat Poll Interval 10 seconds Heartbeat Poll Down Count 3 messages LMI Network Mgmt Disable Enable Incoming Address Screening Disable A 1 A access Classes for SMDS 1 2 addresse
15. 08881000FFFF Individual Address C14089991002FFFF Group and ARP Address E18008881000FFFF SMDS Network Single Group Addresses fora single SNI Addr Mask 255 255 255 0 Individual Address C14089991003FFFF Group and ARP Address E18008881 000FFFF Router Router IP Address 128 1 1 4 Addr Mask 255 255 255 0 IP Address 150 50 1 1 Addr Mask 255 255 255 0 This side shows one Group Address with many Individual and IP Addresses Figure 2 5 Multinet Configuration Ne Address 128 1 1 2 Addr Mask 255 255 255 0 IP Address 150 50 1 2 Addr Mask 255 255 255 0 This side shows one Group Address with one Individual Address and many IP Addresses 2 6 Implementation Notes To configure multinet follow these steps 1 In your SMDS configuration parameters enter addresses in the Group Address ARP Address and Individual Address parameters described in Chapter 3 of this book 2 In your IP interface configuration enter the same addresses that you entered in the SMDS parameters in the previous step The equivalent IP parameters are SMDS Group Address SMDS ARP Req Address and MAC address Refer to Configuring IP Services for information about these IP parameters 3 Add anew IP interface with a unique IP address which includes a network subnet
16. CTS is the Bay Networks free 24 hour fax on demand service This automated system contains libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products The system can return a fax copy to the caller or to a third party within minutes of being accessed World Wide Web The World Wide Web WWW is a global information system for file distribution and online document viewing via the Internet You need a direct connection to the Internet and a Web Browser such as Mosaic or Netscape Bay Networks maintains a WWW Home Page that you can access at http www baynetworks com One of the menu items on the Home Page is the Customer Support Web Server which offers technical documents software agents and an E mail capability for communicating with our technical support engineers How to Get Help For additional information or advice contact the Bay Networks Technical Response Center in your area United States 1 800 2LAN WAN Valbonne France 33 92 966 968 Sydney Australia 61 2 903 5800 Tokyo Japan 81 3 328 005 Conventions This section describes the conventions used in this guide angle brackets lt gt 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 command syntax is ping lt ip_address gt you enter ping 192 32 10 12 xiv arrow character gt bold text
17. Configuring SMDS Services Router Software Version 10 0 Site Manager Software Version 4 0 Software Version BNX 6 0 Site Manager Software Version BNX 6 0 Part No 112922 Rev A January 1996 m Bay Networks 5 Bay Networks 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1988 1996 Bay Networks Inc All rights reserved Printed in the USA January 1996 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 Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 Gi of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notice for All Other Executive Agencies Notwithstanding any other license agreement that may pertain to or accompany the delivery of this computer software the rights
18. DS SMDS Switch Switch l DSU CSU DSU CSU DXI protocol defines the router and DSU CSU interface Figure 1 4 DXI Protocol For low speed SMDS 56 Kb s to 64 Kb s the DXI is extended out to the SMDS network In this case you do not need a special SMDS DSU CSU PDU Assembly SMDS PDU assembly begins when the router receives a network generated packet The router takes the entire packet and encapsulates it within a 36 byte header containing addressing length and control information and a 4 byte trailer containing a CRC value thereby creating an SMDS Level 3 PDU Figure 1 5 The router next prepares the Level 3 PDU for transmission to the DSU CSU by encapsulating it within a DXI header and trailer that provide control information Upon receiving the DXI packet the DSU CSU strips the DXI header trailer and divides the Level 3 PDU into fixed length 44 byte units called cells The DSU CSU encapsulates these cells within a 7 byte header and 2 byte trailer to form Level 2 PDUs Finally the DSU CSU inserts an additional four bytes of framing information between each Level 2 PDU and transmits the framed cells across a Digital Service Level 1 DS1 or DS3 connection to the SMDS network Figure 1 5 shows the assembly of SMD
19. S cells as specified by the DXI Configuring SMDS Services Router Receives LAN Packet Level 3 PAYLOAD Encapsulation I I PAYLOAD R r oute 36 byte header 4 byte trailer I I PAYLOAD DXI header DXI trailer DXI Level 2 PAYLOAD Segmentation sp r RE 4 byte trailer gt 1 gt Ela I 7 byte 44 byte 2 byte 7 byte 44 byte 2 byte 7 byte 44 byte 2 byte header cell trailer header cell trailer header cell trailer PAYLOAD PAYLOAD PAYLOAD Framing field Framing field SMDS Network Figure 1 5 DXI Packet Assembly 1 6 SMDS Overview SMDS Individual Addresses An SMDS individual address is a unique address that the SMDS provider assigns to an SNI Specifically an individual address is a media access control layer MAC address in an E 164 format An E 164 address is a 64 bit address which for SMDS is similar to a phone number For example the phone number 617 555 3923 becomes individual address C161 75 55 39 23 FF FF The C indicates that the address is an individual address and the I is a standard prefix There can be up to 16 individual addresses for one SNI SMDS Group Addresses An SMDS group address is one address that instructs an SMDS switch to broadcast information such as routing information packets RIP and address resolution packets ARP from the router to multiple destination nodes SMDS individual addresses within the SMDS group identify thes
20. al Address Group Address Arp Address Heartbeat Fall Heartbest Poll Interswal Figure 4 2 SMDS Interface List Window 3 Select the interface you want to edit from the scroll box in the SMDS Interface List window 4 Edit the parameters referring to the parameter descriptions following this procedure 5 Click on Apply to save your changes when you are finished Repeat Steps 3 through 5 for each SMDS interface you want to edit 6 Click on Done to exit 4 3 Configuring SMDS Services SMDS Interface Parameter Descriptions Use the following descriptions as guidelines when you edit the SMDS interface parameters Parameter Enable Default Enable Options Enable Disable Function Enables or disables SMDS on this interface Instructions Set to Disable if you want to temporarily disable SMDS on this interface MIB Object ID Parameter Default Options Function Instructions MIB Object ID rather than delete it Set this parameter to Enable if you want to re enable SMDS 1 3 6 1 4 1 18 3 5 9 3 1 2 Individual Address C1FFFFFFFFFFFFFF A complete SMDS E 164 address specified by the SMDS subscription agreement that you have with your SMDS provider Provides a MAC layer address The Configuration Manager fills in this field based on your original SMDS interface configuration Enter the new SMDS E 164 address for example C15085558734FFFF To configure this parameter for a multinet or multi
21. ce Protocol Stack see 1 3 SMDS Level 3 PDU upusset ar er nrar aara EES ege 1 4 RER ee EE 1 5 BXI Packet AssembIy nu nn e ee la 1 6 Access to SMDS Network via a Router and DSU CSU een 2 1 Low Speed Access to SMDS Network nen 2 2 Low Speed Access to SMDS Network via a Low Speed DSU 2 2 SMDS and IP Addresses for a Multinet Configuration 2 5 Multinet Configuration sees eee eee eee eee 2 6 Multigrouping SMDS and IP Addresses sss sees eee 2 7 Multigroup Configuration esse sese ee eee eee ee eee eee 2 9 SMDS Configuration Window sss ese ee ee ee eee eee 3 2 Configuration Manager Window sss see ee ee eee eee 4 2 SMDS Interface List Window sss eee eee eee 4 3 vii Tables Table 2 1 Synchronous Line Parameter Settings for SMDS een 2 10 Table A 1 SMDS Interface Parameters ese eee A 1 About This Guide If you are responsible for configuring and managing Bay Networks routers or BNX platforms read this guide to learn how to customize Bay Networks software for Switched Multimegabit Data Services SMDS This guide Configuring SMDS Services offers An overview of the SMDS protocol see Chapter 1 Implementation notes that may affect how you configure SMDS see Chapter 2 Instructions on enabling SMDS on your router see Chapter 3 Instructions on editing SMDS interface parameters and configuring SMDS see Chapter 4 Software Suites Routing and Switching softwa
22. cket Exchange IPX APPN LLC2 Bridge including Spanning Tree Native Mode LAN DECnet IV Source Routing with Bay Networks 8101 encapsulation DLSw Source Routing with Spanning Tree Internet Protocol IP including Address Resolution Protocol ARP support Xerox Network System XNS Note SMDS does not support OSI Priority of Heartbeat Poll Messages When you select SMDS on a circuit the router automatically assigns the highest priority to heartbeat poll and LMI messages that it sends to the DSU CSU The heartbeat poll and LMI messages must have priority over other data to ensure that during heavy traffic conditions the link stays up and allows these messages to get through to the DSU CSU 2 4 Multinet Implementation Notes Multinet a feature of the Internet Protocol IP allows you to support many IP networks over one SMDS line by allowing many hosts on a single logical IP subnetwork A multinet network is economical because you do not have to purchase as many SMDS group addresses from your SMDS provider as you might with other configurations Multinet configurations enable you to configure one SMDS individual address and one SMDS group address for a single SNI and then associate many logical IP subnetworks with these single SMDS addresses A logical IP subnetwork is a host that is directly connected to the SMDS network A second variation of a multinet configuration allows you to have multiple SMDS individual a
23. ddresses along with a single SMDS group address by configuring an individual address per IP host address for the same group address For information about IP refer to Configuring IP Services Figure 2 4 shows the two types of multinet configurations Type 1 Single group and individual addresses multiple IP address IP Address Group Address Individual Address gt IP Address lt IP Address Type 2 Single group address multiple individual and IP address WEE Address IP Address Group Address Individual Address IP Address Le de Address IP Address Figure 2 4 SMDS and IP Addresses for a Multinet Configuration Figure 2 5 on page 2 6 shows a sample multinet configuration where several IP networks are using one SNI Each side of the network illustrates a different use of group and individual addresses for connecting to the IP networks A multinet configuration allows for efficient network addressing and a cost effective method of implementing SMDS 2 5 Configuring SMDS Services Indicates logical IP interface Indicates physical SMDS line Single Group Address Router N Address 128 1 1 1 for a single SNI gt Individual Address C14089991000FFFF Group and ARP Address E18008881000FFFF Individual Address C14089991001FFFF Group and ARP Address E180
24. e Transparent WAN Protocol SMDS For more information on these parameters refer to Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software 2 10 Chapter 2 Enabling SMDS This chapter provides information on how to enable SMDS It assumes you have read Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software and that you have 1 Opened a configuration file 2 Specified router hardware if this is a local mode configuration file 3 Selected the link or net module connector on which you are enabling SMDS When you enable SMDS you need to configure only a few parameters The Configuration Manager supplies default values for the remaining parameters If you want to edit these default values refer to Chapter 4 for instructions Using the MIB Object ID For each parameter this chapter and Chapter 4 include default settings valid parameter options the parameter function instructions for setting the parameter and the Management Information Base MIB object ID 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 refer to Using Technician Interface Software Caution The Technician Int
25. e nodes Like an SMDS individual address the group address is a media access control layer MAC address in an E 164 format An E 164 address is a 64 bit address which for SMDS is similar to a phone number For example the phone number 508 555 1144 becomes individual address El 50 85 55 11 44 FF FF The E indicates that the address is a group address and the 1 is a standard prefix For More Information about SMDS The following documents provide technical details on SMDS and DXI protocol design and implementation Baker F and Kolb C Definitions of Managed Objects for the DS1 Interface Type RFC 1232 Network Information Center NIC SRI International Menlo Park California May 1991 Bellcore Generic Requirements for SMDS Customer Network Management Service Technical Advisory TA TSV 001062 Issue 2 February 1992 Bellcore Generic System Requirements in Support of Switched Multi Megabit Data Service Technical Reference TR TSV 000772 Issue 1 May 1991 Configuring SMDS Services Bellcore Local Access System Generic Requirements Objectives and Interfaces in Support of Switched Multi Megabit Data Service Technical Reference TR TSV 000773 Issue 1 June 1991 Cox T and Tesink K Definitions of Managed Objects for the DS3 Interface Type RFC 1233 Network Information Center NIC SRI International Menlo Park California May 1991 Klessig R and Tesink T SMDS Wide Area Data Networking with Switched Multi
26. ective dated 14 May 1991 as may be amended from time to time shall apply for interoperability purposes Licensee must notify Bay Networks in writing of any such intended examination of the Software and Bay Networks may provide review and assistance Notwithstanding any foregoing terms to the contrary if licensee licenses the Bay Networks product Site Manager licensee may duplicate and install the Site Manager product as specified in the Documentation This right is granted solely as necessary for use of Site Manager on hardware installed with licensee s network This license will automatically terminate upon improper handling of Software such as by disclosure or Bay Networks may terminate this license by written notice to licensee if licensee fails to comply with any of the material provisions of this license and fails to cure such failure within thirty 30 days after the receipt of written notice from Bay Networks Upon termination of this license licensee shall discontinue all use of the Software and return the Software and Documentation including all copies to Bay Networks Licensee s obligations under this license shall survive expiration or termination of this license Bay Networks Inc 4401 Great America Parkway Santa Clara CA 95054 8 Federal Street Billerica MA 01821 Contents About This Guide em TEE xi le le xii Before TO BEJI TEE xii Bay Networks Customer Support eee eee eee eee eee xii ul xiii INOFAGH
27. erface does not verify that the value you enter for KE a parameter is valid Entering an invalid value can corrupt your configuration 3 1 Configuring SMDS Services Enabling SMDS on an Interface To enable SMDS on an interface complete the following steps 1 Select SMDS from the WAN Protocols menu this menu appears after you select a link or net module connector that requires a WAN circuit Site Manager automatically enables protocol prioritization when you select SMDS For detailed information on protocol prioritization refer to Configuring Traffic Filters and Protocol Prioritization Click on OK to enable default SMDS The Configuration Manager displays the SMDS Configuration window Figure 3 1 Configure the SMDS parameters Individual Address Group Address and ARP Address using the descriptions that follow as a guide When you have configured all the parameters you can do one of the following Enable default SMDS To do this click on OK Edit the default values To do this click on Details Refer to Chapter 4 for instructions Individual Address Grom Orkbeeg EdFFFFFFFFFFFFFE frp direm ELFFFFFFFEFFFFFF Figure 3 1 SMDS Configuration Window 3 2 Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Enabling SMDS Individual Address C1FFFFFFFFFFFFFF A complete SMDS E 164
28. group configuration refer to Chapter 2 for instructions 1 3 6 1 4 1 18 3 5 9 3 1 5 4 4 Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Editing SMDS Parameters Group Address E1FFFFFFFFFFFFFF A complete SMDS E 164 address specified by the SMDS subscription agreement that you have with your SMDS provider Provides a MAC layer multicast address for this SMDS interface The Configuration Manager fills in this field based on your original SMDS interface configuration Enter the new SMDS E 164 group address for example E16175552876FFFF To configure this parameter for a multinet or multigroup configuration refer to Chapter 2 for instructions 1 3 6 1 4 1 18 3 5 9 3 1 6 ARP Address E1FFFFFFFFFFFFFF A complete SMDS E 164 address specified by the SMDS subscription agreement that you have with your SMDS provider Provides an address resolution multicast address The Configuration Manager fills in this field based on your original SMDS interface configuration Enter the new SMDS E 164 address for example E16175552876FFFF To configure this parameter for a multinet or multigroup configuration refer to Chapter 2 for instructions 1 3 6 1 4 1 18 3 5 9 3 1 7 4 5 Configuring SMDS Services Parameter Default Options Function Instructions MIB Object ID Parameter Default Range F
29. megabit Data Service Prentice Hall Inc Englewood New Jersey 1995 Piscitello D and Lawrence J The Transmission of IP Datagrams over the SMDS Service RFC 1209 Network Information Center NIC SRI International Menlo Park California March 1991 SMDS Interest Group SMDS Data Exchange Interface Protocol Revision 3 2 Technical Specification SIG TS 001 1991 October 1991 SMDS Interest Group SMDS DXI Local Management Interface Technical Specification SIG TS 002 1992 May 1992 The following publications provide a less technical introduction to SMDS service Davidson R and Muller N The Guide to SONET Planning Installing amp Maintaining Broadband Networks Telecom Library Inc 1991 Goldstein F ISDN in Perspective Addison Wesley Publishing Company Reading Massachusetts 1992 1 8 Chapter 2 Implementation Notes This chapter provides information about the Bay Networks implementation of SMDS Specifically it contains information about the router s DXI protocol requirements and the Local Management Interface protocol This chapter also supplies details on the use of SMDS group and individual addresses for multinet and multigroup configurations To implement high speed SMDS you need a Bay Networks router and an SMDS DSU CSU that provides DS1 or DS3 based access to the switched SMDS network A synchronous or high speed serial interface HSSD physically connects the router and the DSU CSU Figure 2 1
30. n Protocol ARP updates and Open Shortest Path First OSFP messages to their respective SMDS groups For example in Figure 2 7 two separate subnetworks share the same SNI The routers in these networks use RIP updates to communicate network information The routers broadcast RIP updates to each node on the network Because each RIP network shares an SNI the only way to prevent RIP updates from interfering with one another is to isolate these subnetworks by associating each one with a different SMDS group address 2 8 Implementation Notes Indicates logical IP interface Indicates physical SMDS line EN IP Address 128 1 1 1 Addr Mask 255 255 255 0 Single Group Addresses for a single SNI gt Individual Address C14089991000FFFF Group and ARP Address E18008881000FFFF SMDS Network Individual Address Individual Address C14089991001FFFF C14089991003FFFF Group and ARP Address Group and ARP Address E18008881000FFFF E18008881000FFFF Multiple Group Addresses Multiple Group Addresses for a single SNI for a single SNI Individual Address Individual Address C14089991002FFFF C14089991004FFFF Group and ARP Address Group and ARP Address a E18008882000FFFF E18008882000FFFF Router Router
31. ods of time Figure 1 1 illustrates an SMDS network In this illustration LAN 1 communicates to LAN 2 and 3 through a router connected to an SMDS Digital Service Unit Channel Service Unit DSU CSU The DSU CSU changes the frame based data from the router into cells that can then be sent across the SMDS network Configuring SMDS Services LAN 2 SMDS LAN 1 ESS eu O DD UI E E E T3 SMDS CSU Router Switch Er DSU SMDS LAN Router CSU T3 DSU EI SR SMDS CSU Router r sni SEL EL E Figure 1 1 SMDS Sample Network The point at which the DSU CSU meets the network is the subscriber network interface SNI This is the access point to the SMDS network Within the switching system of the SMDS network T3 communication lines connect the network switches together Because data traffic and network equipment are different for each SMDS customer SMDS defines several access classes Access classes are speeds at which data travels from the customer site to the network switch SMDS currently offers six network access classes 1 2 Mb s 4 Mb s 10 Mb s 16 Mb s 25 Mb s and 34 Mb s The 1 2 Mb s class is for
32. onous line configuration 2 10 W World Wide Web Bay Networks Home Page on xiv Index 3
33. re is available in the following suites The System Suite includes IP routing 802 1 Transparent Bridge Source Route Bridge Translation Bridge SNMP Agent Bay Networks HDLC PPP OSPF EGP BGP and basic DLSw The LAN Suite includes DECnet Phase 4 AppleTalk Phase 2 OSI VINES IPX and ATM DXI in addition to the System Suite The WAN Suite includes ATM DXI Frame Relay LAPB and X 25 in addition to the System Suite The Corporate Suite includes the System LAN and WAN suites in their entirety The ARE ATM Suite provides RFC 1483 and 1577 compliance ATM UNI 3 0 signaling in addition to the LAN Suite xi Configuring SMDS Services Audience s The ARE VNR Corporate Suite provides ATM Forum LAN Emulation in addition to the ARE ATM Suite and Corporate Suite e The BNX Suite includes IP Routing SNMP Agent Bay Networks HDLC PPP OSPF EGP BGP File Based Performance Statistics Frame Relay switching and Frame Relay billing and selected components from the Corporate ARE ATM and ARE VNR Corporate suites Availability of features and functionality described in this guide depends on the suites you are using Written for system and network managers this guide provides instructions on how to configure the Bay Networks implementation of SMDS interfaces to suit your environment We assume that you have experience with LANs and WANs SMDS and general network management tasks Before You Begin Before using this
34. reseller Bay Networks provides several methods of receiving support and information on a nonpriority basis through the following automated systems CompuServe Bay Networks maintains an active forum on CompuServe All you need to join us online is a computer a modem and a CompuServe account We also recommend using the CompuServe Information Manager software available from CompuServe The Bay Networks forum contains libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products Software agents and patches are available and the message boards are monitored by technical staff and can be a source for problem solving and shared experiences Customers and resellers holding Bay Networks service contracts can visit the special libraries to acquire advanced levels of support documentation and software To open an account and receive a local dial up number call CompuServe at 1 800 524 3388 and ask for Representative No 591 e Inthe United Kingdom call Freephone 0800 289378 In Germany call 0130 37 32 In Europe except for the United Kingdom and Germany call 44 272 760681 e Outside the U S Canada and Europe call 614 529 1349 and ask for Representative No 591 or consult your listings for an office near you Once you are online you can reach our forum by typing the command GO BAYNETWORKS at any prompt xiii Configuring SMDS Services InfoFACTS InfoFA
35. s group 1 7 used for multigroup 2 7 used for multinet 2 5 individual 1 7 used for multigroup 2 7 used for multinet 2 5 ARP Address parameter 3 4 4 5 Bay Networks CompuServe forum xiii customer support xii Home Page on World Wide Web xiv InfoFACTS service xiv publications ordering xv Technical Response Center xiv C CompuServe Bay Networks forum on xiii connections to router 2 1 connectivity using heartbeat polling 2 3 customer support See getting help cyclic redundancy check CRC values 2 3 D Data Exchange Interface DXI protocol description 1 4 requirements for SMDS Index version supported 2 3 defaults for SMDS parameters A 1 deleting SMDS from the router 4 8 DSU CSU configuration requirements for 2 3 role in SMDS network 1 4 E E 164 addresses for SMDS 1 3 Enable Incoming Address Screening parameter 4 8 Enable parameter 4 4 enabling SMDS 3 1 to 3 4 G getting help from a Bay Networks Technical Response Center xiv through CompuServe xiii through InfoFACTS service xiv through World Wide Web xiv Group Address parameter 3 3 4 5 H Heartbeat Poll Down Count parameter 4 7 Heartbeat Poll Interval parameter 4 6 heartbeat poll messages 2 4 Heartbeat Poll parameter 4 6 heartbeat polling for connections 2 3 Index 1 high speed serial interface HSSI connections 2 1 high speed SMDS description 1 2 implementing 2 1 IEEE Standard 802 6 u
36. se the router does not support earlier DXI versions the DSU CSU must support DXI Version 3 2 DXI Version 3 2 provides an optional heartbeat poll mechanism to periodically verify the router and DSU CSU connection Be sure to enable heartbeat polling on the DSU CSU The DXI also provides support for both 16 bit and 32 bit cyclic redundancy checks CRCs Network devices use CRCs to check data for transmission errors When the router or DSU CSU receives data each reads the CRC character and compares the value it calculates to the actual CRC character in the data packet Ensure that the CRC values for the router and the DSU CSU match This means that if you set the router to 16 bit CRCs you must set the DSU CSU to 16 bit CRCs If necessary you can modify the CRC values 16 bit or 32 bit for both synchronous and HSSI connections Local Management Interface The Local Management Interface LMI protocol works with the DXI to enable the router and the DSU CSU to exchange management information The LMI uses a subset of the Simple Network Management Protocol SNMP to provide for router management queries DSU CSU responses to queries and DSU CSU generated asynchronous trap events Before enabling the LMI on the router ensure that the DSU CSU supports this protocol and that you enable it on the DSU CSU 2 3 Configuring SMDS Services Protocols Supported by SMDS SMDS can operate with the following protocols AppleTalk Internet Pa
37. sed by SMDS 1 1 implementation notes 2 1 to 2 10 Individual Address parameter 3 3 4 4 InfoFACTS service xiv information sources on SMDS 1 7 L line configuration See synchronous line configuration LMI Network Mgmt parameter 4 7 Local Management Interface LMI enabling 4 7 purpose of 2 3 low speed SMDS description of 1 2 implementing 2 1 MIB object ID 3 1 multigroup description 2 7 sample configuration 2 8 setting parameters for 2 10 multinet description 2 5 sample configuration 2 5 setting parameters for 2 7 P parameters ARP Address 3 4 4 5 editing 4 1 to 4 7 Enable 4 4 Enable Incoming Address Screening 4 8 Group Address 3 3 4 5 Heartbeat Poll 4 6 Heartbeat Poll Down Count 4 7 Heartbeat Poll Interval 4 6 Individual Address 3 3 4 4 LMI Network Mgmt 4 7 protocol data unit PDU assembly 1 5 definition 1 3 protocols supported by SMDS 2 4 R router requirements for SMDS 2 3 S SMDS access classes description 1 2 addresses 1 7 defaults A 1 deleting from the router 4 8 enabling 3 1 to 3 4 implementation notes 2 1 to 2 10 information sources 1 7 LMI 2 3 overview of 1 1 to 1 7 router requirements for 2 3 sending data over WANs 1 2 supported protocols 2 4 SMDS Interface Protocol SIP definition 1 3 speeds for SMDS 1 2 subscriber network interface SNI definition 1 2 2 1 Index 2 Switched Multi megabit Data Service See SMDS synchr
38. t grant any Software license whatsoever either explicitly or implicitly except by acceptance of an order for either Software or for a Bay Networks product Equipment that is packaged with Software Each such license is subject to the following restrictions 1 Upon delivery of the Software Bay Networks grants to licensee a personal nontransferable nonexclusive license to use the Software with the Equipment with which or for which it was originally acquired including use at any of licensee s facilities to which the Equipment may be transferred for the useful life of the Equipment unless earlier terminated by default or cancellation Use of the Software shall be limited to such Equipment and to such facility Software which is licensed for use on hardware not offered by Bay Networks is not subject to restricted use on any Equipment however unless otherwise specified on the Documentation each licensed copy of such Software may only be installed on one hardware item at any time Licensee may use the Software with backup Equipment only if the Equipment with which or for which it was acquired is inoperative Licensee may make a single copy of the Software but not firmware for safekeeping archives or backup purposes Licensee may modify Software but not firmware or combine it with other software subject to the provision that those portions of the resulting software which incorporate Software are subject to the restrictions of this
39. terials 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 IMPLIED 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 Bay Networks Software License Note This is Bay Networks basic license document In the absence of a software license agreement specifying varying terms this license or the license included with the particular product shall govern licensee s use of Bay Networks software This Software License shall govern the licensing of all software provided to licensee by Bay Networks Software Bay Networks will provide licensee with Software in machine readable form and related documentation Documentation The Software provided under this license is proprietary to Bay Networks and to third parties from whom Bay Networks has acquired license rights Bay Networks will no
40. the router DSU connection down If you disable heartbeat polling this parameter is nonfunctional Set to the number of unacknowledged heartbeat poll messages that the router will tolerate before taking the router DSU connection down We recommend that you accept the default 1 3 6 1 4 1 18 3 5 9 3 1 10 LMI Network Mgmt Disable Enable Disable Enables or disables LMI network management LMI works with DXI Version 3 2 LMI is an SNMP like protocol that enables the router and the DSU CSU to exchange management information Set to Enable to enable the LMI protocol Set to Disable if the DSU CSU in your network does not support the LMI 1 3 6 1 4 1 18 3 5 9 3 1 11 4 7 Configuring SMDS Services Parameter Default Options Function Instructions MIB Object ID Enable Incoming Address Screening Disable Enable Disable Enables the router to verify the Individual and Group addresses that it receives in the incoming frames and drop any improperly addressed frames It ensures that the router receives only traffic intended for it If the router rejects an address one of three things may be happening You did not configure the SMDS addresses according to the numbers the service provider assigned The network is forwarding traffic to the router unnecessarily Notify the network provider Ifthe router shares a network entry point with another device the router may be receiving that device s
41. unction Instructions MIB Object ID Heartbeat Poll Enable Enable Disable Enables or disables DXI heartbeat polling DXI Version 3 2 provides a heartbeat polling mechanism which verifies the integrity of the router DSU connection To implement heartbeat polling the router transmits a constant stream of keep alive messages to the DSU The DSU in turn sends an acknowledgment to the router Set to Enable to enable heartbeat polling Set to Disable if the DSU CSU in your network does not support heartbeat polling 1 3 6 1 4 1 18 3 5 9 3 1 8 Heartbeat Poll Interval 10 seconds 6 to 1023 seconds Specifies the time interval between each heartbeat poll message that the router transmits If you disable heartbeat polling this parameter is nonfunctional Enter the number of seconds between the transmission of heartbeat poll messages Be sure to set the Heartbeat Poll Interval parameter to a value greater than 5 seconds the length of the heartbeat poll acknowledgment timer We recommend that you accept the default value 1 3 6 1 4 1 18 3 5 9 3 1 9 4 6 Parameter Default Range Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Editing SMDS Parameters Heartbeat Poll Down Count 3 messages 1 to 1023 messages Specifies the number of heartbeat poll messages that the router will send without acknowledgment from the DSU before it declares
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