Avaya ST2 User's Manual
Contents
1. Parameter Default Options Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Neighbor Type Local Local Tunnel Specifies the type of connection to this neighbor Set this parameter to Tunnel if the router is connected to the neighbor via an ST2 tunnel 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 6 Neighbor Priority Level 8 1 to 16 Assigns a priority value to the neighbor If you enter multiple ST2 route exploration neighbors in the forwarding table use this parameter to rank them First choice is the neighbor with the lowest value 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 7 Next Hop IP Address None A valid IP address Specifies the IP address of the next hop router or host Set to the IP address of the neighbor router or host 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 3 3 16 Appendix A Site Manager Default Settings This appendix lists the default ST2 settings for Site Manager Use the Configuration Manager to edit any of the Site Manager default settings listed here ST2 Interface Parameter Defaults Parameter Default Enable Enable IP Address None Accept Time Out 10 seconds Accept Retry 3 retries Connect Time Out 10 seconds Connect Retry 5 retries Disconnect Time Out 10 seconds Disconnect Retry 3 retries HID Change Time O2. 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 Xiv 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 Acronyms ANSI ARP ATM CMIP EGP FDDI HID MAC MOP OSI OSPF QENET RIP SCMP SNMP ST2 1 800 845 9523 1 800 582 8000 1 916 939 1010 American National Standards Institute Address Resolution Protocol Asynchronous Transfer Mode Common Management Information Protocol Exterior Gateway Protocol Fiber Distributed Data Interface hop identifier media access control Maintenance Operations Protocol Open Systems Interconnection Open Shortest Path First Quad Ethernet Link M
3. 3 2 Adding an ST2 Interface to a Circuit sssssssssssseeeeeneeeenmenn nnns 3 2 Customizing an ST2 Interface ek 3 5 Configuring ST2 on the Router enne nennen ens 3 11 Building a Neighbors Forwarding Table sese 3 13 Appendix A Site Manager Default Settings ST2 Interface Parameter Defaults sssssssssseeeeeeenmeee eene A 1 ST2 GlobalParameter Defaults mrene ri tt as A 2 ST2 Neighbor Parameter Defaults rrrnrrrnannnvnnorrrnnnnnrnnrnrrnnnnnrnnnnvrnnnnnnnnnnnrennnnrnnnnnnennn A 2 Index vi Figures Figure 1 1 ST2 Point to Multipoint Stream sse 1 2 Figure 1 2 ST2 Neighbors AA 1 4 Figure 2 1 Setting Up a Point to Point Stream sss 2 2 Figure 2 2 Adding a Target to a Stream sss 2 5 Figure 3 1 IP Configuration Window ooccconncnnnncccnnnccnnnacccononn nano nc cnnr naar nc cnn nnne 3 3 Figure 3 2 Edit ST2 Interfaces Window ssssssssssseeenene nene 3 6 Figure 3 3 ST2 Base Group Parameters Window sess 3 11 Figure 3 4 ST2 Neighbors Window ssseeeeeennnenen nens 3 14 Figure 3 5 ST2 Neighbor Configuration Window rrrrnrvrnnnnvnnrnrrrnnnnvnnrerrrrnnnrnnnrnnren 3 14 vii Tables Table 1 1 SZ Features AE ARE A e Maal at Ad 1 5 About This Guide This guide describes how to configure a Bay Networks router or BNX platform as a Stream Prot
4. Interfaces Window Parameter Default Options Function Instructions MIB Object ID Enable Enable Enable Disable Enables and disables ST2 on this interface By default the router enables ST2 when you add the ST2 protocol to the circuit If you want to disable ST2 on the interface use this parameter 1 3 6 1 4 1 18 3 5 16 1 2 2 1 2 3 6 Configuring an Intermediate Agent Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID IP Address None Any valid IP address Specifies the IP address of this ST2 interface Supply a unique IP address in dotted decimal notation 1 3 6 1 4 1 18 3 5 16 1 2 2 1 6 Accept Time Out 10 seconds 1 to 999 Specifies the time in seconds between ST2 accept message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 7 Accept Retry 3 retries 1 to 100 Specifies the maximum retry count for accept messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 8 3 7 Configuring ST2 Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Ra
5. JER Neighbor Priority Level 4 Figure 3 4 ST2 Neighbors Window ST2 Neighbor Configuration Canoel Configuration Mode local ax EE Agent LOCAL FILE Valves Help Next Hop IP Address D Type of Neighbor Local Figure 3 5 ST2 Neighbor Configuration Window 3 14 Configuring an Intermediate Agent Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Enable Enable Enable Disable Specifies whether the record for this neighbor is active Use this parameter to disable a configured neighbor 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 Route Exploration Capability No Yes No Specifies whether the neighbor is capable of route exploration Determine this characteristic of the ST2 neighbor and supply the proper value 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 4 Hello Protocol Enable Enable Hello When Stream Active Disable Specifies whether the router should send Hello messages to the neighbor The parameter also specifies the type of Hello procedure Select Enable to use the normal Bay Networks hello procedure Select Hello When Stream Active to use the hello procedure only when a stream is running to a neighbor 1 3 6 1 4 1 18 3 5 16 1 2 3 1 2 5 3 15 Configuring an Intermediate Agent
6. 1 Configuring ST2 Services Video stream origin Key IP ST2 interface Was ST2 stream lt gt Network BayNet ST2 1 BayNet ST2 3 Video stream targets Figure 1 1 ST2 Point to Multipoint Stream ST2 Agents Each IP router supporting the stream is configured with the hardware and software required for ST2 data transmissions in addition each router is running ST2 agent software Such routers are considered to be ST2 capable 1 2 ST2 Concepts and Terminology An ST2 agent that receives control messages and stream data directly from an origin application or delivers control messages and stream data to a target application is considered to be a host agent ST2 agents that forward control messages and data to the next agent downstream are considered to be intermediate agents A Bay Networks router can be configured as an intermediate ST2 agent The ST2 environment in Figure 1 1 includes three Bay Networks routers BayNet ST2 1 BayNet ST2 2 and BayNet ST2 3 Stream Control Messages ST2 agents communicate with each other by exchanging messages defined by the Stream Control Message Protocol SCMP For example an origin that wants to establish a stream sends an SCMP connect message to the next hop IP router downstream The connection request includes e A list of one or more targets e hop identifier H
7. Configuring ST2 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 112924 Rev A January 1996 a Bay Networks CES 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 righ
8. ID An HID is suggested by the upstream agent The downstream agent may accept the HID or propose an alternative HID e A flowspec listing the network resources required for the stream To accept a connection request from an upstream agent the agent returns an SCMP ACCEPT message In ST2 Features on page 1 5 Table 1 1 lists all the SCMP messages currently supported by the Bay Networks implementation of ST2 Neighbors and Tunnels An ST2 agent exchanges SCMP messages with next hop agents In an ST2 environment next hop agents are considered to be neighbors Neighbors can be connected in two ways directly or through an ST2 tunnel In Figure 1 2 the ST2 agent on Router A has two neighbors the agent on Router B and the agent on Router D Router A and Router B are connected directly they both have an interface to Network 1 Router A and Router D are connected through a tunnel that includes Network 2 and Network 3 and a router that does not have ST2 capabilities Router C Configuring ST2 Services Tunnels are configured by the network administrator to establish ST2 streams in networks where not all IP routers are ST2 capable For transmission through a tunnel SCMP messages and ST2 data are encapsulated in IP datagrams and forwarded through a non ST2 router and decapsulated at the destination A non ST2 router can provide a tunnel for both stream data and control messages however a router that lacks ST2 capability c
9. agent runs on every slot that has been configured with an ST2 interface To customize the way an ST2 agent operates on the router begin at the Configuration Manager window and perform the following operations 1 Turellirg Cepebility T unnellng Enable Select Protocols gt IP gt ST2 gt Global The ST2 Base Group Parameters window appears Figure 3 3 Edit the parameters and click on OK SI Base Group Record EN Cancel on figuration Mode local OK SHE Agent LOCAL FILE Help Enable ENABLE NOT CAPABLE Figure 3 3 ST2 Base Group Parameters Window Configuring ST2 Services Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Enable Enable Enable Disable Determines whether ST2 is enabled on the slot By default the router starts ST2 on the slot when you configure an ST2 interface on a circuit If you do not want ST2 to be started on the slot select Disable 1 3 6 1 4 1 18 3 5 16 1 2 1 2 Tunnelling Capability No Yes No Specifies whether ST2 can use a tunnel to establish a neighbor to neighbor connection By default ST2 does not have tunneling capability If your network requires the use of tunnels select Yes 1 3 6 1 4 1 18 3 5 16 1 2 1 5 Tunnelling Enable Disable Enab
10. annot guarantee the resources listed in the flowspec IP Router A N IP Router C SS S Net 3 IP Router B IP Router D ST2 agent gt Direct neighbor connection Tunneled neighbor connection Figure 1 2 ST2 Neighbors ST2 Concepts and Terminology Resource Manager An SCMP CONNECT request includes a flowspec that lists the communications resources required by the proposed stream On a Bay Networks router an ST2 agent that receives a connect request from an agent upstream passes the flowspec to the local Resource Manager The Resource Manager allocates and guarantees the resources required by the stream For information on the Resource Manager see Configuring Line Services or Configuring Customer Access and Trunks BNX Software depending on the type of installed software ST2 Features Table 1 1 lists ST2 features and indicates the ones called out in RFC 1190 Experimental Internet Stream Protocol Version 2 and the ones supported by the current version of Bay Networks router software Table 1 1 ST2 Features Feature RFC 1190 Current Version Multiline circuits n a yes Peak bandwidth reservation n a yes Bandwidth policing n a yes Autorouting using IP route tables n a yes IP encapsulation of ST2 yes yes Adding targets during connection yes yes HID negotiation yes yes SCMP ACCEPT yes yes SCMP ACK yes yes SCMP CHANGE REQUEST yes n
11. aterials 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 not g
12. bors from its ST2 neighbors table This table which is configured by the network administrator consists of entries that describe the characteristics of a next hop neighbor and provide the next hop address The table notes those neighbors that can perform exploratory routing When resources are not available via a route stored in the IP routing table the ST2 agent selects a neighbor that is capable of exploratory routing Establishing a Connection with a Downstream Neighbor Once the SCMP session has been established the downstream intermediate agent becomes the upstream agent for the next hop and issues a connect message The message contains an HID value and the flowspec for the stream Adding a Target to a Stream Once a stream has been established from the origin to a target the origin can issue additional connect requests to add targets to the stream Each connect request identifies the stream and specifies the target to add In Figure 2 2 for example target T4 has been added to the stream established between the video origin and T6 To create a new branch in the stream if one is required the intermediate ST2 agent follows the steps described in Determining the Next Hop Downstream on page 2 3 and in the previous section Establishing a Connection with a Downstream Neighbor 2 4 The Role of an ST2 Intermediate Agent Video stream origin Network BayNet ST2 1 BayNet ST2 3 BayNet ST2 2 Vide
13. creates a semblance of an end to end connection establishment typical of a virtual circuit protocol However control messages are never exchanged directly between origin and targets 2 1 Configuring ST2 Services Receiving a Connect Request from Upstream An intermediate ST agent receives connect requests on ST2 interfaces from upstream agents A connect request can specify a single target the typical case or multiple targets In Figure 2 1 for example BayNet ST2 1 an intermediate agent receives a connect request from ST2 1 The connect request specifies a single target for the stream T6 The request also includes a flowspec listing the network resources required for the transmission Video stream origin Key ET IP ST2 interface Sms ST2 stream e Network BayNet ST2 3 BayNet ST2 2 Video stream targets Figure 2 1 Setting Up a Point to Point Stream The Role of an ST2 Intermediate Agent The ST2 agent on BayNet ST2 1 using the information in the connection request 1 Negotiates a hop identifier HID with the previous hop ST2 1 2 Reserves the local and network resources required to support the stream 3 Passes the flowspec to the Bay Networks resource manager Determining the Next Hop Downstream An ST2 agent on a Bay Networks router uses two methods to determine the next downstream hop in the stream e P inherited routing the primary method using the IP routing
14. eaeeeeaeeeceaaeeeeaaeeseaeeesaeeseceeeessaaeeneaes xii eu xii IMOFAGTS tris ai PT vide xiii World Wide E he te tind at eite Ati xiii How to Get Help EEE EE iaaaiE xiv GONVentions EE xiv Ordering Bay Networks Publications sess XV ACIORVITIS nie Deeg eta tuns E E RE E ee E DR eM XV Chapter 1 ST2 Concepts and Terminology ST2And Pusse ETE 1 1 pce Em 1 2 Stream Control Messages ssssssssssesssseeeeeee enne en nennen senten nenne nennen 1 3 NETAS A 1 3 Resource Manager iii A iste 1 5 ER TEE 1 5 Chapter 2 The Role of an ST2 Intermediate Agent Setting Up a Stream Segment sse nennen 2 1 Receiving a Connect Request from Upstream ssssseseeeee 2 2 Determining the Next Hop Downstream essen 2 3 Using the IP Routing Table IP Inherited Routing eseeessssss 2 3 Using the ST2 Neighbor Table Exploratory Routing sesesss 2 4 Establishing a Connection with a Downstream Neighbor esses 2 4 Adding a Target to a Stream ssssssssssssssssseeeeeeeen nennen nennen nes 2 4 Forwarding ST2 Data Downstream sse nennen nn 2 5 Shutting Down a Stream ceccceecceeceeeee cece eeeeeeeecaeeeeeaaeeseaeeeesaaeeseeeeescaeeeseeeeessaeeeseneees 2 6 Chapter 3 Configuring an Intermediate Agent Selecting a Slot and Configuring a Circuit ccceccececeeeeeeeeeeeeeaeeeeeeeeeeaeeeeeeeeessaeeneeneees
15. icense Licensee shall not make the resulting software available for use by any third party Neither title nor ownership to Software passes to licensee Licensee shall not provide or otherwise make available any Software in whole or in part in any form to any third party Third parties do not include consultants subcontractors or agents of licensee who have licensee s permission to use the Software at licensee s facility and who have agreed in writing to use the Software only in accordance with the restrictions of this license Third party owners from whom Bay Networks has acquired license rights to software that is incorporated into Bay Networks products shall have the right to enforce the provisions of this license against licensee Licensee shall not remove or obscure any copyright patent trademark trade secret or similar intellectual property or restricted rights notice within or affixed to any Software and shall reproduce and affix such notice on any backup copy of Software or copies of software resulting from modification or combination performed by licensee as permitted by this license Bay Networks Inc 4401 Great America Parkway Santa Clara CA 95054 8 Federal Street Billerica MA 01821 Bay Networks Software License continuea 10 11 12 Licensee shall not reverse assemble reverse compile or in any way reverse engineer the Software Note For licensees in the European Community the Software Direct
16. ies 1 to 100 Specifies the maximum retry count for HID change messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 14 3 9 Configuring ST2 Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Refuse Time Out 10 seconds 1 to 999 Specifies the time in seconds between ST2 refuse message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 15 Refuse Retry 3 retries 1 to 100 Specifies the maximum retry count for refuse messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 16 Hello Time Out 10 seconds 1 to 100 Specifies the time in seconds between ST2 hello message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 17 3 10 Configuring an Intermediate Agent Parameter Default Range Function Instructions MIB Object ID Hello Retry 5 retries 1 to 100 Specifies the maximum retry count for hello messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 18 Configuring ST2 on the Router An ST2
17. ircuit on the connector or configure a WAN circuit 1f this connector requires one For instructions on performing these operations refer to Configuring Routers or Configuring Customer Access and Trunks BNX Software depending on the type of installed software Adding an ST2 Interface to a Circuit ST2 requires the services of IP Every circuit that you configure with an ST2 interface must also be configured with an IP interface Once you have set up a slot and configured a circuit you are finished with the Add Circuit window 1 Click on OK on the Add Circuit window The Select Protocols window appears 2 Select IP and ST2 from the Select Protocols window and click on OK Site Manager displays the IP configuration window Figure 3 1 3 Edit the parameters on the screen 4 Click on OK 3 2 Configuring an Intermediate Agent e IP CONFIGURATION EI Configuration Mode local SNMP Agent LOCAL FILE TP Address 1 Subnet Mask o 0 0 0 Transmit Boast Addr o 0 0 0 UnNumbered Assoc Addr Figure 3 1 IP Configuration Window Parameter Default Options Function Instructions MIB Object ID IP Address 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 3 3 Configuring ST2 Service
18. irect 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 xiii Configuring ST2 Services How to Get Help For additional information or advice contact the Bay Networks Technical Response Center in your area United States Valbonne France Sydney Australia Tokyo Japan Conventions 1 800 2LAN WAN 33 92 966 968 61 2 903 5800 81 3 328 005 This section describes the conventions used in this guide angle brackets lt gt arrow character gt bold text brackets italic text quotation marks screen text ellipsis points vertical line 1 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 jp address you enter ping 192 32 10 12 Separates menu and option names in instructions Example Protocols gt 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
19. ive 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 Software S ites ui dte ate EH en adt e t ae xi fie Te xii Bay Networks Customer Support cecceceeeceeeeeeeec
20. le Disable Enables and disables tunneling on a router that has tunneling capability If you select Yes for the Tunneling Capability parameter use this parameter to enable and disable that feature on the router 1 3 6 1 4 1 18 3 5 16 1 2 1 6 3 12 Configuring an Intermediate Agent Building a Neighbors Forwarding Table The network administrator constructs an ST2 neighbors forwarding table on the router and supplies an entry for each neighbor router that has ST2 capability To create an entry describing an ST2 neighbor begin at the Configuration Manager window and perform the following operations 1 Select Protocols gt IP gt ST2 gt Neighbors The ST2 Neighbors window appears Figure 3 4 Click on Add The Neighbor Configuration window appears Figure 3 5 Edit the parameters in this window to supply the IP address of the neighbor and indicate the type of neighbor Click on OK The ST2 Neighbors window reappears displaying the addresses of all configured neighbors Click on the neighbor whose characteristics you want to describe or modify Edit the parameters in this window and click on Apply The router uses the information you have supplied to create a forwarding table entry for the neighbor Click on Done 3 13 Configuring ST2 Services f l ST Neighbors Done TD Apply Enable LI Route Exploration Capablity 7777 Hello Protocol 7 Neighbor Type
21. lid parameter options the parameter function instructions for setting the parameter and the Management Information Base MIB object ID This chapter shows you how to set parameters using Site Manager You can also use the Technician Interface to modify parameters by issuing set and commit commands that specify the MIB object ID For more information about using the Technician Interface to access the MIB refer to Using Technician Interface Software Caution The Technician Interface does not verify that the value you enter for a parameter is valid Entering an invalid value can corrupt your configuration The following sections show you how to use Site Manager to configure a Bay Networks router as an ST2 capable intermediate agent Selecting a Slot and Configuring a Circuit on page 3 2 e Adding an ST2 Interface to a Circuit on page 3 2 e Customizing an ST2 Interface on page 3 5 e Configuring ST2 on the Router on page 3 11 Building a Neighbors Forwarding Table on page 3 13 3 1 Configuring ST2 Services Selecting a Slot and Configuring a Circuit Before you can add an S T2 interface to a circuit you must perform the following Operations to ensure that the slot is properly set up for IP and ST2 1 Open a configuration file 2 Specify a slot and configure a link module on the slot if the configuration file 1s a local mode file 3 Select a link or net module connector and configure a c
22. nge Function Instructions MIB Object ID Connect Time Out 10 seconds 1 to 999 Specifies the time in seconds between ST2 connect message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 9 Connect Retry 5 retries 1 to 100 Specifies the maximum retry count for connect messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 10 Disconnect Time Out 10 seconds 1 to 999 Specifies the time in seconds between ST2 disconnect message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 11 3 8 Configuring an Intermediate Agent Parameter Default Options Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Disconnect Retry 3 retries 1 to 100 Specifies the maximum retry count for disconnect messages on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 12 HID Change Time Out 10 seconds 1 to 999 Specifies the time in seconds between ST2 HID change message retries on this interface Use the default unless the application requires otherwise 1 3 6 1 4 1 18 3 5 16 1 2 2 1 13 HID Change Retry 3 retr
23. o SCMP CHANGE yes no continued Configuring ST2 Services Table 1 1 ST2 Features continued Feature RFC 1190 Current Version SCMP CONNECT yes yes SCMP DISCONNECT yes yes SCMP ERROR IN REQUEST yes yes SCMP ERROR IN RESPONSE yes yes SCMP HELLO yes yes SCMP HID CHANGE yes yes SCMP HID APPROVE yes yes SCMP HID REJECT yes yes SCMP HID CHANGE REQUEST yes no SCMP NOTIFY yes no SCMP REFUSE yes yes SCMP STATUS yes no SCMP STATUS RESPONSE yes no SCMP OPCODE 18 userdata no yes 1 6 Chapter 2 The Role of an ST2 Intermediate Agent This chapter examines the role played by an intermediate ST2 agent running on a Bay Networks router in an ST2 environment The chapter consists of the following sections e Setting Up a Stream Segment on page 2 1 e Adding a Target to a Stream on page 2 4 e Forwarding ST2 Data Downstream on page 2 5 e Shutting Down a Stream on page 2 6 Setting Up a Stream Segment As part of ST2 stream setup a Bay Networks router configured as an intermediate agent Receives an SCMP connect request from an upstream ST2 neighbor Establishes a connection with the upstream neighbor Determines the appropriate downstream neighbor Reserves resources on the downstream interface Sends an SCMP connection request to the downstream neighbor Nn EF ju NY PF Establishes a connection with the downstream neighbor Stream setup
24. o stream targets Figure 2 2 Adding a Target to a Stream Forwarding ST2 Data Downstream An ST agent receives data packets encapsulated by an ST header A data packet received by an ST agent contains the HID assigned to the stream for the branch from the previous hop to itself The agent uses the HID to obtain quickly the necessary forwarding information for the next hop 2 5 Configuring ST2 Services The forwarding information identifies the next hop agent and includes the HID and address of the next hop Shutting Down a Stream Two SCMP messages Disconnect and Refuse allow ST2 agents to shut down a stream in an orderly manner An intermediate agent receives SCMP Disconnect messages on its upstream ST2 interfaces Disconnect messages can be generated by the origin or in the case of network failure by a next hop agent upstream An intermediate agent receives SCMP Refuse messages on its downstream ST2 interfaces Refuse messages can be generated by an ST2 target or by a next hop agent downstream The ST2 agent acknowledges the request to shut down the stream and performs the appropriate action In the case of a Disconnect message the agent sends a Disconnect to the next hop agent or agents downstream In the case of a Refuse message the agent sends a Refuse message to the next hop upstream 2 6 Chapter 3 Configuring an Intermediate Agent For each ST2 parameter this manual provides default settings va
25. ocol 2 ST2 intermediate agent Software Suites Routing and Switching software 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 The ARE VNR Corporate Suite provides ATM Forum LAN Emulation in addition to the ARE ATM Suite and Corporate Suite 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 xi Configuring ST2 Services Audience This manual is intended for network administrators who have experience using Site Manager to configure the Internet Protocol IP and IP routing protocols on Bay Networks routers Bay Networks Customer Support Bay Networks provide
26. odule Routing Information Protocol Stream Control Message Protocol Simple Network Management Protocol Stream Protocol 2 XV Chapter 1 ST2 Concepts and Terminology The Internet Stream Protocol ST2 enables a network application to reserve resources on internet routers for an ST2 stream a transmission path from a data origin to one or more data targets The capability to reserve Internet resources makes ST2 well suited for video conferencing real time simulation and other multimedia applications An ST2 stream is a point to point or point to multipoint connection Figure 1 1 shows an ST2 stream established between a single video streaming unit the origin of the transmissions and six receiving target video systems The stream is simplex data flows in one direction only downstream from the origin to the targets ST2 and IP Underlying and supporting an ST2 stream is an internet topology that includes multiple IP routers capable of providing and guaranteeing the resources required for the data transmission For example the topology underlying the stream in Figure 1 1 includes seven routers An ST2 stream creates a semblance of an end to end connection establishment typical of a virtual circuit protocol However messages are never exchanged directly between origin and targets Each router discovers the next hop IP routers and is concerned only with the part of the stream between itself and these routers 1
27. on 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 3 4 Configuring an Intermediate Agent Parameter UnNumbered Assoc Address Note S72 cannot be configured on an unnumbered interface in the current software version Default Range Function Instructions MIB Object ID 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 1f the subnets have the same mask as the associated address Specify the address of any numbered interface on the router 1 3 6 1 4 1 18 3 5 3 2 1 4 1 110 Customizing an ST2 Interface This section shows you how to customize an interface that you have added to a router circuit Begin at the Configuration Manager window and perform the following operations 1 Select Protocols IP ST2 Interfaces The Edit ST2 Interfaces window appears Figure 3 2 Edit the parameters and click on Apply Click on Done 3 5 Configuring ST2 Services l Edit 512 Interfaces en IAS OR NN lom Enable IP Address Accept Tine Nut n Connect Tine Out o Connect Retry Apply i Values Help Figure 3 2 Edit ST2
28. rant 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 l
29. ries 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 Xii 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 n 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 InfoFACTS InfoFACTS 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 d
30. s Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Subnet Mask 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 with this parameter Specifies 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 1 3 6 1 4 1 18 3 5 3 2 1 4 1 6 Transmit Bcast Addr 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 notati
31. s 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 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 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 libra
32. table e ST2 exploratory routing the backup method using the ST2 neighbor table Using the IP Routing Table IP Inherited Routing In IP inherited routing the ST2 agent obtains the address of the next hop router from the IP routing table This table consists of entries describing routes that have been learned by the routing protocols configured on the router OSPF and BGP for example The routing table also contains entries for static routes that is routes that have been inserted by the network administrator Each entry in the IP routing table includes a target IP network a next hop IP address an interface address and other information There is no information in a routing table entry however to distinguish an ST2 route that is a hop with an ST2 capable router on the other end For this reason it is possible for ST2 to select a route that it cannot use If ST2 selects a route that is not ST2 capable and does not provide a tunnel to an ST2 agent ST2 does not use the route and returns an SCMP REFUSE message upstream with the reason code No Route to Destination If the required resources are not available via a path stored in the IP routing table ST2 uses exploratory routing See Using the ST2 Neighbor Table Exploratory Routing on page 2 4 2 3 Configuring ST2 Services Using the ST2 Neighbor Table Exploratory Routing In exploratory routing the ST2 agent obtains information about its ST2 capable neigh
33. ts 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 AEN 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 EN 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 O 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 m
34. ut 3 8 Disconnect Retry 3 9 Disconnect Time Out 3 8 Enable 3 6 Hello Retry 3 11 Hello Time Out 3 10 HID Change Retry 3 9 HID Change Time Out 3 9 IP Address 3 7 1 Refuse Retry 3 10 Refuse Time Out 3 10 neighbors Enable 3 15 Hello Protocol 3 15 Neighbor Priority Level 3 16 Neighbor Type 3 16 Next Hop IP Address 3 16 Route Exploration Capability 3 15 ST2 capable defined 1 2 stream definition of 1 1 setting up 2 1 shutting down 2 6 Stream Control Message Protocol SCMP 1 3 T target adding to a stream 2 4 definition of 1 1 tunnel defined 1 4 Index 2
35. ut 10 seconds HID Change Retry 3 retries Refuse Time Out 10 seconds Refuse Retry 3 retries Hello Time Out 10 seconds Hello Retry 5 retries A 1 Configuring ST2 Services ST2 Global Parameter Defaults ST2 Neighbor Parameter Defaults Parameter Default Enable Enable Tunneling Capability No Tunneling Enable Disable Parameter Default Route Exploration Capability No Hello Protocol Enable Neighbor Type Local Neighbor Priority Level 8 Next Hop IP Address None A 2 A agent defined 1 2 Bay Networks publications ordering x C connect request forwarding downstream 2 4 receiving from upstream 2 2 D data packets forwarding downstream 2 5 E exploratory routing 2 4 F flowspec 1 3 H hop identifier HID 1 3 host agent defined 1 3 Index intermediate agent defined 1 3 internet relationship to ST2 1 1 IP parameters IP Address 3 3 Subnet Mask 3 4 Transmit Bcast Addr 3 4 IP inherited routing 2 3 N neighbor defined 1 3 next hop determining 2 3 O origin definition of 1 1 R resource manager role in ST2 setup 1 5 routing exploratory 2 4 IP inherited 2 3 S SCMP Stream Control Message Protocol 1 3 Index 1 ST2 parameters global Enable 3 12 Tunnelling Capability 3 12 Tunnelling Enable 3 12 interface Accept Retry 3 7 Accept Time Out 3 7 Connect Retry 3 8 Connect Time O
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