Avaya Configuring IP Multicasting Services Manual de usuario

Part No. 114064 Rev. AAugust 1996Router Software Version 11.0Site Manager Software Version 5.0Configuring IPMulticasting Services

Configuring IP Multicasting ServicesA-26 114064 Rev. AParameter: Neighbor Priority LevelPath: Configuration Manager > Protocols > IP > ST2 >

114064 Rev. A Index-1Aagent, defined, 5-3BBay NetworksCompuServe forum, xxCustomer Service FTP, xixhome page on World Wide Web, xixInfoFACTS service, x

Configuring IP Multicasting ServicesIndex-2 114064 Rev. Afrom a Bay Networks Technical ResponseCenter, xxifrom the Support Source CD, xxthrough CompuS

Index114064 Rev. A Index-3Enable, 5-13, A-20Hello Retry, A-24Hello Time Out, A-24HID Change Retry, A-23HID Change Time Out, A-22IP Address, 5-13, A-20

114064 Rev. A xiTablesTable 4-1. Recommended TTL and Threshold Values ...4-16Table 5-1. ST2 Features ...

114064 Rev. A xiiiAbout This GuideIf you are responsible for configuring and managing Bay Networks™ routers, youneed to read this guide. This guide pro

Configuring IP Multicasting Servicesxiv 114064 Rev. AConventionsangle brackets (< >) Indicate that you choose the text to enter based on thedesc

About This Guide114064 Rev. A xvAcronymsAUI Attachment Unit InterfaceBOOTP Bootstrap ProtocolBRI Basic Rate InterfaceCCITT International Telegraph and

Configuring IP Multicasting Servicesxvi 114064 Rev. AOrdering Bay Networks PublicationsTo purchase additional copies of this document or other Bay Net

114064 Rev. A xviiTechnical Support and Online ServicesTo ensure comprehensive network support to our customers and partnersworldwide, Bay Networks Cu

Configuring IP Multicasting Servicesxviii 114064 Rev. ABay Networks Customer ServiceIf you purchased your Bay Networks product from a distributor or a

Technical Support and Online Services114064 Rev. A xixBay Networks Information ServicesBay Networks Information Services provide up-to-date support in

ii 114064 Rev. A4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1988–1996 Bay Networks, Inc.All rights

Configuring IP Multicasting Servicesxx 114064 Rev. ASupport Source CDThis CD-ROM -- sent quarterly to all contracted customers -- is a complete BayNet

Technical Support and Online Services114064 Rev. A xxiInfoFACTSInfoFACTS is the Bay Networks free 24-hour fax-on-demand service. Thisautomated system

114064 Rev. A 1-1Chapter 1Multicasting OverviewThe following sections describe IP multicasting concepts and terminology.• Multicast Host Groups -- pag

Configuring IP Multicasting Services1-2 114064 Rev. AAn IP multicasting host group can consist of zero or more members and places norestrictions on it

Multicasting Overview114064 Rev. A 1-3Multicast ProtocolsAn IP router fully configured for multicasting runs a host group membershipprotocol and a mult

114064 Rev. A 2-1Chapter 2Starting IP Multicasting ServicesThe following sections show you how to perform a basic configuration -- that is, aconfigurati

Configuring IP Multicasting Services2-2 114064 Rev. A2. Supply the following information:• An IP address for this interface. There is no default for t

Starting IP Multicasting Services114064 Rev. A 2-3Starting ST2Before you can select a protocol to run on the router, you must configure a circuitthat t

114064 Rev. A iiiBay Networks Software LicenseThis Software License shall govern the licensing of all software provided to licensee by Bay Networks (“

Configuring IP Multicasting Services2-4 114064 Rev. AThe instructions in this chapter show you how to start ST2 using all default valuesand settings.F

114064 Rev. A 3-1Chapter 3Customizing IGMPThis chapter consists of the following sections describing the Internet GroupManagement Protocol (IGMP).• IG

Configuring IP Multicasting Services3-2 114064 Rev. AIGMP Concepts and TerminologyThe Internet Group Management Protocol (IGMP) allows a host to regis

Customizing IGMP114064 Rev. A 3-3If at least one host on the local network specifies that it is a member of a givengroup, the router will forward to th

Configuring IP Multicasting Services3-4 114064 Rev. AEstimating the Number of GroupsBy default, IGMP estimates that 20 groups will be simultaneously a

Customizing IGMP114064 Rev. A 3-5Configuring IGMP on an InterfaceThe following sections show you how to configure interface-specific IGMPfeatures using S

Configuring IP Multicasting Services3-6 114064 Rev. ASpecifying a Membership Timeout IntervalBy default, a local group membership is valid for 260 sec

Customizing IGMP114064 Rev. A 3-7Configuring a Static Host EntryA network may include a member of a multicast group that is unable to register itsnetwo

114064 Rev. A 4-1Chapter 4Customizing DVMRPThis chapter consists of the following sections describing the Distance VectorMulticast Routing Protocol (D

iv 114064 Rev. ABay Networks Software License(continued)9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer the So

Configuring IP Multicasting Services4-2 114064 Rev. A• Configuring a Tunnel -- page 4-18Selecting the Encapsulation Mode -- page 4-18Specifying the Cos

Customizing DVMRP114064 Rev. A 4-3Figure 4-1. Multicast RoutersAt startup, a DVMRP multicasting router1. Initializes its routing table with informatio

Configuring IP Multicasting Services4-4 114064 Rev. AIn Figure 4-1, for example, Router D becomes active and issues routing probes onfour multicasting

Customizing DVMRP114064 Rev. A 4-5In Figure 4-1, for example, Router D receives two reports for the networkconnected to multicasting Router A, one fro

Configuring IP Multicasting Services4-6 114064 Rev. AThe principal items in a forwarding table entry areShortest-Path TreesRoute information used by D

Customizing DVMRP114064 Rev. A 4-7A network that is not on the shortest path to a source network from a multicastrouter is considered to be a leaf. In

Configuring IP Multicasting Services4-8 114064 Rev. AConfiguring Tree PruningIf a host drops out of a multicast group, multicast routers may continue t

Customizing DVMRP114064 Rev. A 4-9Configuring DVMRP TimersWhen a router adds or updates a route, it uses configurable aging timers to controlthe useful

Configuring IP Multicasting Services4-10 114064 Rev. ASetting the Neighbor Report TimerThe neighbor report timer specifies how long the router waits to

Customizing DVMRP114064 Rev. A 4-11Specifying a Probe IntervalThe probe interval determines how often DVMRP sends a probe on interfacesfrom which no n

114064 Rev. A vContentsConfiguring IP Multicasting Services iAbout This GuideBefore You Begin ...

Configuring IP Multicasting Services4-12 114064 Rev. AEstimating the Number of RoutesBy default, DVMRP preallocates a routing table for 25 entries. Yo

Customizing DVMRP114064 Rev. A 4-13Specifying the Maximum Number of RoutesBy default, DVMRP stores all learned routes in the routing table. You can us

Configuring IP Multicasting Services4-14 114064 Rev. AConfiguring DVMRP on a CircuitThe following sections describe DVMRP circuit-specific features.Enab

Customizing DVMRP114064 Rev. A 4-15Calculating a Route Metric and Comparing Route CostsBy default, a circuit has a cost of 1. You can use Site Manager

Configuring IP Multicasting Services4-16 114064 Rev. ASpecifying a ThresholdThreshold values control the scope of datagram delivery. The threshold is

Customizing DVMRP114064 Rev. A 4-17Configuring a Forwarding TableTo keep to a minimum the amount of time that it spends looking up routes,DVMRP creates

Configuring IP Multicasting Services4-18 114064 Rev. ADisabling Advertisement of Local NetworksBy default, DVMRP advertises its own local networks ove

Customizing DVMRP114064 Rev. A 4-19Specifying the CostBy default, DVMRP assigns a metric of 1 to a tunnel. You can use Site Manager tospecify a cost v

Configuring IP Multicasting Services4-20 114064 Rev. AConfiguring a Forwarding Table for the TunnelBy default, DVMRP preallocates a forwarding table fo

114064 Rev. A 5-1Chapter 5Customizing ST2 ServicesThis chapter consists of the following sections describing services provided by theInternet Stream P

vi 114064 Rev. AChapter 3Customizing IGMPIGMP Concepts and Terminology ...

Configuring IP Multicasting Services5-2 114064 Rev. AST2 Concepts and TerminologyThe Internet Stream Protocol (ST2) enables a network application to r

Customizing ST2 Services114064 Rev. A 5-3Figure 5-1. ST2 Point-to-Multipoint StreamST2 AgentsEach IP router supporting the stream is configured with th

Configuring IP Multicasting Services5-4 114064 Rev. AAn ST2 agent that receives control messages and stream data directly from anorigin application or

Customizing ST2 Services114064 Rev. A 5-5Tunnels are configured by the network administrator to establish ST2 streams innetworks where not all IP route

Configuring IP Multicasting Services5-6 114064 Rev. AResource ManagerAn SCMP CONNECT request includes a flowspec that lists the communicationsresources

Customizing ST2 Services114064 Rev. A 5-7The Role of an ST2 Intermediate AgentThis section examines the role played by an intermediate ST2 agent runni

Configuring IP Multicasting Services5-8 114064 Rev. AReceiving a Connect Request from UpstreamAn intermediate ST agent receives connect requests on ST

Customizing ST2 Services114064 Rev. A 5-9The ST2 agent on BayNet/ST2 1, using the information in the connection request:1. Negotiates a hop identifier

Configuring IP Multicasting Services5-10 114064 Rev. AUsing the ST2 Neighbor Table (Exploratory Routing)In exploratory routing, the ST2 agent obtains

Customizing ST2 Services114064 Rev. A 5-11Figure 5-4. Adding a Target to a StreamHow the Agent Forwards ST2 Data DownstreamAn ST agent receives data p

114064 Rev. A viiSpecifying a Route Switch Interval ...4-11Estimating the Number

Configuring IP Multicasting Services5-12 114064 Rev. AThe forwarding information identifies the next-hop agent and includes the HIDand address of the n

Customizing ST2 Services114064 Rev. A 5-13Configuring the Tunnel CapabilityBy default, ST2 does not have tunneling capability. If your network requires

Configuring IP Multicasting Services5-14 114064 Rev. ASetting Interface Timers and CountersYou can use Site Manager to set the following ST2 timers:•

Customizing ST2 Services114064 Rev. A 5-15Site Manager: Accept Time Out parameter: page A-20Site Manager: Accept Retry parameter: page A-21Site Manage

Configuring IP Multicasting Services5-16 114064 Rev. AConfiguring the Neighbors Forwarding TableYou can use Site Manager to store the following informa

114064 Rev. A A-1Appendix ASite Manager Multicast ParametersDVMRP ParametersDVMRP Global ParametersParameter: EnablePath: Configuration Manager > Pr

Configuring IP Multicasting ServicesA-2 114064 Rev. AParameter: Triggered Update IntervalPath: Configuration Manager > Protocols > IP > Multic

Site Manager Multicast Parameters114064 Rev. A A-3Parameter: Route Expiration TimeoutPath: Configuration Manager > Protocols > IP > Multicast

Configuring IP Multicasting ServicesA-4 114064 Rev. AParameter: Estimated RoutesPath: Configuration Manager > Protocols > IP > Multicast >

Site Manager Multicast Parameters114064 Rev. A A-5Parameter: Route Switch TimeoutPath: Configuration Manager > Protocols > IP > Multicast >

viii 114064 Rev. AHow the Agent Adds a Target to a Stream ...5-10How the Agent Forwards ST2

Configuring IP Multicasting ServicesA-6 114064 Rev. AParameter: Fragmented MTU ThresholdPath: Configuration Manager > Protocols > IP > Multica

Site Manager Multicast Parameters114064 Rev. A A-7DVMRP Circuit ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > Mult

Configuring IP Multicasting ServicesA-8 114064 Rev. AParameter: MetricPath: Configuration Manager > Protocols > IP > Multicast > DVMRP >

Site Manager Multicast Parameters114064 Rev. A A-9Parameter: Forward Cache TTLPath: Configuration Manager > Protocols > IP > Multicast > DV

Configuring IP Multicasting ServicesA-10 114064 Rev. ADVMRP Tunnel ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > M

Site Manager Multicast Parameters114064 Rev. A A-11Parameter: ThresholdPath: Configuration Manager > Protocols > IP > Multicast > DVMRP >

Configuring IP Multicasting ServicesA-12 114064 Rev. AParameter: Local IP AddressPath: Configuration Manager > Protocols > IP > Multicast >

Site Manager Multicast Parameters114064 Rev. A A-13IGMP ParametersIGMP Global Configuration ParametersParameter: EnablePath: Configuration Manager >

Configuring IP Multicasting ServicesA-14 114064 Rev. AIGMP Static Host ParametersParameter: Version Threshold TimePath: Configuration Manager > Prot

Site Manager Multicast Parameters114064 Rev. A A-15IGMP Entry Interface ParametersParameter: Static Group AddressPath: Configuration Manager > Proto

114064 Rev. A ixFiguresFigure 4-1. Multicast Routers ...4-3Figure 5-

Configuring IP Multicasting ServicesA-16 114064 Rev. AParameter: Interface Query RatePath: Configuration Manager > Protocols > IP > Multicast

Site Manager Multicast Parameters114064 Rev. A A-17IP Configuration ParametersParameter: Max Host Response TimePath: Configuration Manager > Protocol

Configuring IP Multicasting ServicesA-18 114064 Rev. AParameter: Transmit Bcast AddrPath: Select IP from the Select Protocols window and click on OK.D

Site Manager Multicast Parameters114064 Rev. A A-19ST2 ParametersST2 Global ParametersParameter: EnablePath: Configuration Manager > Protocols >

Configuring IP Multicasting ServicesA-20 114064 Rev. AST2 Interface ParametersParameter: EnablePath: Configuration Manager > Protocols > IP >

Site Manager Multicast Parameters114064 Rev. A A-21Parameter: Accept RetryPath: Configuration Manager > Protocols > IP > ST2 > InterfacesDe

Configuring IP Multicasting ServicesA-22 114064 Rev. AParameter: Disconnect Time OutPath: Configuration Manager > Protocols > IP > ST2 > In

Site Manager Multicast Parameters114064 Rev. A A-23Parameter: HID Change RetryPath: Configuration Manager > Protocols > IP > ST2 > Interfac

Configuring IP Multicasting ServicesA-24 114064 Rev. AST Neighbors Forwarding Table ParametersParameter: Hello Time OutPath: Configuration Manager >

Site Manager Multicast Parameters114064 Rev. A A-25Parameter: Route Exploration CapabilityPath: Configuration Manager > Protocols > IP > ST2 &