Avaya Configuring IP Multicasting and Multimedia Services Uživatelský manuál

Part No. 303527-A Rev. 00October 1998BayRS Version 13.00Site Manager Software Version 7.00 BCC Version 4.05 Configuring IP Multicasting and Multimedi

x303527-A Rev. 00Appendix A Site Manager ParametersDVMRP Parameters ...

Configuring IP Multicasting and Multimedia Services4-44303527-A Rev. 00Accepting a Report from a Nonstandard DVMRP NeighborBy default, DVMRP does not

Customizing DVMRP303527-A Rev. 004-45Configuring DVMRP Announce PoliciesA DVMRP announce policy governs the propogation of DMVRP routing information.

303527-A Rev. 005-1Chapter 5Customizing OSPF Multicast ExtensionsMOSPF is a multicasting extension of OSPF. You configure MOSPF by setting OSPF global

Configuring IP Multicasting and Multimedia Services5-2303527-A Rev. 00MOSPF OverviewMOSPF is a multicasting extension of the OSPF protocol that allows

Customizing OSPF Multicast Extensions303527-A Rev. 005-3Figure 5-1. OSPF Autonomous SystemsMOSPF supports four types of multicasting:• Intra-area mult

Configuring IP Multicasting and Multimedia Services5-4303527-A Rev. 00Configuring MOSPF GloballyYou can use Site Manager to add MOSPF extensions to OS

Customizing OSPF Multicast Extensions303527-A Rev. 005-5After you configure OSPF with multicast extensions, you can set multicast global parameters as

Configuring IP Multicasting and Multimedia Services5-6303527-A Rev. 00Enabling Deterministic MulticastingMOSPF runs in two modes:•In nondeterministic

Customizing OSPF Multicast Extensions303527-A Rev. 005-7Specifying a Forwarding Timeout ValueYou can use Site Manager to specify a value for timing ou

303527-A Rev. 00xiFiguresFigure 4-1. Multicast Routers ...4-3Figure

Configuring IP Multicasting and Multimedia Services5-8303527-A Rev. 00Specifying a Maximum Number of Queued PacketsBy default, MOSPF queues a maximum

Customizing OSPF Multicast Extensions303527-A Rev. 005-9Enabling Dynamic TTLYou can configure MOSPF to drop multicast packets that do not have a TTL h

Configuring IP Multicasting and Multimedia Services5-10303527-A Rev. 00Configuring Multicast Forwarding on an OSPF InterfaceBy default, multicast pack

Customizing OSPF Multicast Extensions303527-A Rev. 005-11Configuring Multicast-Capable External RoutesBy default, all external routes are multicast in

Configuring IP Multicasting and Multimedia Services5-12303527-A Rev. 00Configuring MOSPF Announce PoliciesUse the following Site Manager procedure to

303527-A Rev. 006-1Chapter 6Configuring QOSPFQOSPF is an extension of OSPF that works in conjunction with RSVP to provide quality of service for multi

Configuring IP Multicasting and Multimedia Services6-2303527-A Rev. 00Figure 6-1. QOSPF TopologyYou add QOSPF extensions to OSPF by enabling MOSPF in

Configuring QOSPF303527-A Rev. 006-3Enabling the Deterministic Holddown FeatureThe deterministic holddown feature ensures that a data flow does not go

Configuring IP Multicasting and Multimedia Services6-4303527-A Rev. 00Enabling Route PinningRoute pinning ensures that once resource reservations have

Configuring QOSPF303527-A Rev. 006-5Enabling the Opaque CapabilityThe OSPF opaque capability provides support for additional types of LSAs and additio

Configuring IP Multicasting and Multimedia Services6-6303527-A Rev. 00Enabling the Opaque Capability on an InterfaceBy default, if you have enabled th

303527-A Rev. 007-1Chapter 7Configuring RSVPThe Resource Reservation Protocol (RSVP) allows host systems in an IP network to reserve resources on RSVP

Configuring IP Multicasting and Multimedia Services7-2303527-A Rev. 00How RSVP WorksA network host that wants to establish a dataflow with a specified

Configuring RSVP303527-A Rev. 007-3A network host that receives an RSVP path message decides whether it wants to receive data on the proposed dataflow

Configuring IP Multicasting and Multimedia Services7-4303527-A Rev. 00Configuring RSVP GloballyWhen you start RSVP on the router, RSVP runs with defau

Configuring RSVP303527-A Rev. 007-5Choosing a SlotBy default, RSVP runs on every slot where it is configured.You can use Site Manger to specify the sl

Configuring IP Multicasting and Multimedia Services7-6303527-A Rev. 00Configuring RSVP Message LoggingYou can use Site Manager to specify the messages

Configuring RSVP303527-A Rev. 007-7Configuring RSVP on an InterfaceWhen you add RSVP to an IP interface, RSVP is configured on the interface with defa

Configuring IP Multicasting and Multimedia Services7-8303527-A Rev. 00Setting the RSVP Default Refresh TimerRSVP sends periodic refresh messages to ma

Configuring RSVP303527-A Rev. 007-9Setting the RSVP Default Lifetime MultiplierThe Lifetime Multiplier is an integer that multiplies the TIME_VALUE ob

303527-A Rev. 00xiiiTablesTable 4-1. Parts of a Routing Table Entry ...4-6Table 4-2. Re

Configuring IP Multicasting and Multimedia Services7-10303527-A Rev. 00Setting the RSVP Refresh Blockade MultiplierBy default, an RSVP interface in th

Configuring RSVP303527-A Rev. 007-11Setting the TTL OverrideBy default, RSVP uses the IP TTL value. You can use Site Manager to override this value.Si

Configuring IP Multicasting and Multimedia Services7-12303527-A Rev. 00Setting the Route Delay ValueThe route delay value specifies the approximate pe

Configuring RSVP303527-A Rev. 007-13Enabling and Disabling UDP EncapsulationBy default, RSVP uses UDP encapsulation on this interface only if it deter

303527-A Rev. 008-1Chapter 8Reserving Line ResourcesThis chapter covers the following topics:Topic PageAbout Line Resource Reservation8-2How the Resou

Configuring IP Multicasting and Multimedia Services8-2303527-A Rev. 00About Line Resource ReservationEmerging real-time multicast applications for dig

Reserving Line Resources303527-A Rev. 008-3Supported MediaYou must enable the Resource Manager on 10-Mb/s and 100-Mb/s Ethernet, FDDI, MCT1, HSSI, and

Configuring IP Multicasting and Multimedia Services8-4303527-A Rev. 00Setting the Estimated BandwidthTo activate resource reservation, specify a line

Reserving Line Resources303527-A Rev. 008-5Setting the Reservable BandwidthTo enable RSVP reservable resources, specify the portion of this line’s ban

Configuring IP Multicasting and Multimedia Services8-6303527-A Rev. 00Specifying the Traffic Queuing AlgorithmBy default, the Line Resource Manager (L

Reserving Line Resources303527-A Rev. 008-7Specifying the LRM Policing AlgorithmBy default, LRM does not check RSVP packets against the flowspec (poli

Configuring IP Multicasting and Multimedia Services8-8303527-A Rev. 00Setting the Bandwidth IntervalBy default, LRM measures instantaneous bandwidth o

Reserving Line Resources303527-A Rev. 008-9Setting the Inflate Reservations PercentageBy default, LRM does not add a safety tolerance to each RSVP res

Configuring IP Multicasting and Multimedia Services8-10303527-A Rev. 00Specifying the Unreserved Policing AlgorithmLRM uses one of two policing algori

Reserving Line Resources303527-A Rev. 008-11Specifying the Unreserved Queue LengthIf the Unreserved Policing Algorithm parameter is set to Queue Limit

Configuring IP Multicasting and Multimedia Services8-12303527-A Rev. 00Specifying the Multiline Select AlgorithmIf you configured LRM on a multiline c

Reserving Line Resources303527-A Rev. 008-13Setting the Multiline Threshold BandwidthWhen using the first fit multiline select algorithm (see “Specify

Configuring IP Multicasting and Multimedia Services8-14303527-A Rev. 00Setting the Reservation LatencyBy default, the maximum latency for a reserved f

Reserving Line Resources303527-A Rev. 008-15Setting the Maximum Reservable Bandwidth for a DataflowBy default, there is no maximum amount of bandwidth

303527-A Rev. 00xv PrefaceThis guide describes configuring IGMP, DVMRP, MOSPF, QOSPF, RSVP, and line services on a Bay Networks® router.You can use th

Configuring IP Multicasting and Multimedia Services8-16303527-A Rev. 00Setting the Maximum Buffer Space for a DataflowBy default, there is no maximum

303527-A Rev. 009-1Chapter 9Configuring IGMP RelayThis chapter consists of the following topics:Topic PageConcepts and Terminology9-2Enabling and Disa

Configuring IP Multicasting and Multimedia Services9-2303527-A Rev. 00Concepts and TerminologyA router configured as an IGMP Relay (IGMP-R) device pro

Configuring IGMP Relay303527-A Rev. 009-3Figure 9-1. Multicast Network Topology with an IGMP Relay DeviceTo an IGMP host on a directly attached networ

Configuring IP Multicasting and Multimedia Services9-4303527-A Rev. 00In Figure 9-2, for example, the following events occur on the IGMP-R device:1. I

Configuring IGMP Relay303527-A Rev. 009-5In addition to soliciting multicast group membership information from directly attached networks, the IGMP-R

Configuring IP Multicasting and Multimedia Services9-6303527-A Rev. 00In Figure 9-4, the following events occur:1. A host on LAN B sends an unsolicite

Configuring IGMP Relay303527-A Rev. 009-7Enabling and Disabling IGMP Relay GloballyBy default, IGMP Relay is disabled on the router. You can use the B

Configuring IP Multicasting and Multimedia Services9-8303527-A Rev. 00Using Site ManagerWhen you configure the IGMP Relay function globally, Site Mana

Configuring IGMP Relay303527-A Rev. 009-9Specifying a Timeout Value for Multicast Table EntriesBy default, the timeout period for an entry in the mult

Configuring IP Multicasting and Multimedia Servicesxvi303527-A Rev. 00Text ConventionsThis guide uses the following text conventions:angle brackets (&

Configuring IP Multicasting and Multimedia Services9-10303527-A Rev. 00Configuring Upstream Data ForwardingBy default, an IGMP-R device connected to a

Configuring IGMP Relay303527-A Rev. 009-11Using Site ManagerSpecifying the Relay Interface TypeUse the Type parameter to specify that the IGMP-R inter

Configuring IP Multicasting and Multimedia Services9-12303527-A Rev. 00Using the BCCNavigate to the interface-level IGMP prompt and enter:relayAn inte

Configuring IGMP Relay303527-A Rev. 009-13Using Site ManagerConfiguring Unsolicited Reports on an Upstream InterfaceBy default, an IGMP-R device sends

Configuring IP Multicasting and Multimedia Services9-14303527-A Rev. 00Using the BCCNavigate to an interface-level IGMP prompt and enter:relayNavigate

Configuring IGMP Relay303527-A Rev. 009-15Using Site ManagerSite Manager ProcedureYou do this System responds1. In the Configuration Manager window, c

Configuring IP Multicasting and Multimedia Services9-16303527-A Rev. 00Configuring an AS Boundary Router for Use with IGMP RelayAn IGMP-R device commu

Configuring IGMP Relay303527-A Rev. 009-17Figure 9-5. IGMP-R Routing ProtocolsFigure 9-5 shows how a Bay Networks MOSPF AS boundary router receives RI

Configuring IP Multicasting and Multimedia Services9-18303527-A Rev. 00Configuring a Backup MOSPF Boundary RouterIGMP Relay supports two types of back

Configuring IGMP Relay303527-A Rev. 009-19Configuring IGMP Relay with Router RedundancyIGMP operates with BayRS router redundancy in hot stand-by mode

Preface303527-A Rev. 00xvii Acronymsitalic text Indicates file and directory names, new terms, book titles, and variables in command syntax descriptio

303527-A Rev. 00A-1 Appendix ASite Manager ParametersFor each parameter associated with a multicast protocol or service, this appendix provides the Si

Configuring IP Multicasting and Multimedia ServicesA-2303527-A Rev. 00DVMRP ParametersThis section describes the DVMRP global, circuit, and tunnel par

Site Manager Parameters303527-A Rev. 00A-3 Parameter: Leaf TimeoutPath: Configuration Manager > Protocols > IP > Multicast > DVMRP > Gl

Configuring IP Multicasting and Multimedia ServicesA-4303527-A Rev. 00Parameter: Garbage TimeoutPath: Configuration Manager > Protocols > IP >

Site Manager Parameters303527-A Rev. 00A-5 Parameter: Neighbor Probe IntervalPath: Configuration Manager > Protocols > IP > Multicast > DV

Configuring IP Multicasting and Multimedia ServicesA-6303527-A Rev. 00Parameter: Pruning EnablePath: Configuration Manager > Protocols > IP >

Site Manager Parameters303527-A Rev. 00A-7 DVMRP Circuit ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > Multicast

Configuring IP Multicasting and Multimedia ServicesA-8303527-A Rev. 00Parameter: MetricPath: Configuration Manager > Protocols > IP > Multica

Site Manager Parameters303527-A Rev. 00A-9 Parameter: Forward Cache TTLPath: Configuration Manager > Protocols > IP > Multicast > DVMRP &g

Configuring IP Multicasting and Multimedia Servicesxviii303527-A Rev. 00IP Internet ProtocolISDN Integrated Services Digital NetworkISO International

Configuring IP Multicasting and Multimedia ServicesA-10303527-A Rev. 00Parameter: Route ListenPath: Configuration Manager > Protocols > IP >

Site Manager Parameters303527-A Rev. 00A-11 DVMRP Tunnel ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > Multicast

Configuring IP Multicasting and Multimedia ServicesA-12303527-A Rev. 00Parameter: ThresholdPath: Configuration Manager > Protocols > IP > Mul

Site Manager Parameters303527-A Rev. 00A-13 Parameter: Route SupplyPath: Configuration Manager > Protocols > IP > Multicast > DVMRP > T

Configuring IP Multicasting and Multimedia ServicesA-14303527-A Rev. 00Parameter: Report Depend ProbePath: Configuration Manager > Protocols > I

Site Manager Parameters303527-A Rev. 00A-15 IGMP ParametersThis section describes the IGMP global configuration, static host, and entry interface para

Configuring IP Multicasting and Multimedia ServicesA-16303527-A Rev. 00Parameter: Estimated GroupsPath: Configuration Manager > Protocols > IP &

Site Manager Parameters303527-A Rev. 00A-17 Parameter: Forward Cache LimitPath: Configuration Manager > Protocols > IP > Multicast > IGMP

Configuring IP Multicasting and Multimedia ServicesA-18303527-A Rev. 00Parameter: Nonlocal ReportsPath: Configuration Manager > Protocols > IP &

Site Manager Parameters303527-A Rev. 00A-19 IGMP Static Host ParametersParameter: Circuit NamePath: Configuration Manager > Protocols > IP >

Preface303527-A Rev. 00xix Bay Networks Technical PublicationsYou can now print Bay Networks technical manuals and release notes free, directly from t

Configuring IP Multicasting and Multimedia ServicesA-20303527-A Rev. 00IGMP Entry Interface ParametersParameter: EnablePath: Configuration Manager >

Site Manager Parameters303527-A Rev. 00A-21 Parameter: Designated Router TimeoutPath: Configuration Manager > Protocols > IP > Multicast >

Configuring IP Multicasting and Multimedia ServicesA-22303527-A Rev. 00Parameter: Query SuppressionPath: Configuration Manager > Protocols > IP

Site Manager Parameters303527-A Rev. 00A-23 IP Configuration ParametersParameter: IP AddressPath: Select IP from the Select Protocols window and click

Configuring IP Multicasting and Multimedia ServicesA-24303527-A Rev. 00Parameter: Transmit Bcast AddrPath: Select IP from the Select Protocols window

Site Manager Parameters303527-A Rev. 00A-25 Resource Manager ParametersParameter: Estimated BandwidthPath: Configuration Manager > XCVR, HSSI, MCT1

Configuring IP Multicasting and Multimedia ServicesA-26303527-A Rev. 00Parameter: Traffic Queuing AlgorithmPath: Configuration Manager > XCVR, HSSI

Site Manager Parameters303527-A Rev. 00A-27 Parameter: Bandwidth Interval (Secs)Path: Configuration Manager > XCVR, HSSI, MCT1, or COM Connector co

Configuring IP Multicasting and Multimedia ServicesA-28303527-A Rev. 00Parameter: Unreserved Policing AlgorithmPath: Configuration Manager > XCVR,

Site Manager Parameters303527-A Rev. 00A-29 Parameter: Multiline Select AlgorithmPath: Configuration Manager > XCVR, HSSI, MCT1, or COM Connector c

ii303527-A Rev. 004401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1998 Bay Networks, Inc.All rights re

Configuring IP Multicasting and Multimedia ServicesA-30303527-A Rev. 00Parameter: Reservation LatencyPath: Configuration Manager > XCVR, HSSI, MCT1

Site Manager Parameters303527-A Rev. 00A-31 OSPF Parameters for Multicast and QoS ExtensionsOSPF Global ParametersParameter: Multicast ExtensionsPath:

Configuring IP Multicasting and Multimedia ServicesA-32303527-A Rev. 00Parameter: Opaque CapabilityPath: Configuration Manager > Protocols > IP

Site Manager Parameters303527-A Rev. 00A-33 Parameter: Max Queued Multcast PacketsPath: Configuration Manager > Protocols > IP > OSPF > Gl

Configuring IP Multicasting and Multimedia ServicesA-34303527-A Rev. 00OSPF Interface ParametersParameter: Multicast Downstream IGMP RelayPath: Config

Site Manager Parameters303527-A Rev. 00A-35 RSVP ParametersRSVP Global ParametersParameter: Opaque OnPath: Configuration Manager > Protocols > I

Configuring IP Multicasting and Multimedia ServicesA-36303527-A Rev. 00Parameter: Log FilterPath: Configuration Manager > Protocols > IP > RS

Site Manager Parameters303527-A Rev. 00A-37 RSVP Interface ParametersParameter: EnablePath: Configuration Manager > Protocols > IP > RSVP >

Configuring IP Multicasting and Multimedia ServicesA-38303527-A Rev. 00Parameter: TTLPath: Configuration Manager > Protocols > IP > RSVP >

Site Manager Parameters303527-A Rev. 00A-39 Announce Policy Parameters for Both DVMRP and MOSPFUse the following descriptions to set DVMRP and MOSPF a

303527-A Rev. 001-1Chapter 1Multicasting and Multimedia OverviewThis overview covers the following topics:Topic PageMulticast Host Groups1-2Multicast

Configuring IP Multicasting and Multimedia ServicesA-40303527-A Rev. 00Parameter: NamePath: Configuration Manager > Protocols > IP > Policy F

Site Manager Parameters303527-A Rev. 00A-41 Parameter: ActionPath: Configuration Manager > Protocols > IP > Policy Filters > DVMRP > An

Configuring IP Multicasting and Multimedia ServicesA-42303527-A Rev. 00Parameter: AdvertisePath: Configuration Manager > Protocols > IP > Pol

Site Manager Parameters303527-A Rev. 00A-43 DVMRP-Specific Announce Policy ParametersUse the following descriptions to set DVMRP-specific announce pol

Configuring IP Multicasting and Multimedia ServicesA-44303527-A Rev. 00IGMP Group Policy ParametersUse the following descriptions to set IGMP group po

Site Manager Parameters303527-A Rev. 00A-45 Parameter: SourcesPath: Configuration Manager > Protocols > IP > Policy Filters > IGMPDefault:

Configuring IP Multicasting and Multimedia ServicesA-46303527-A Rev. 00Parameter: PrecedencePath: Configuration Manager > Protocols > IP > Po

Site Manager Parameters303527-A Rev. 00A-47 Parameter: CircuitsPath: Configuration Manager > Protocols > IP > Policy Filters > IGMPDefault

Configuring IP Multicasting and Multimedia ServicesA-48303527-A Rev. 00MTM Static Forwarding Policy ParametersUse the following descriptions to set MT

Site Manager Parameters303527-A Rev. 00A-49 Parameter: PreferencePath: Configuration Manager > Protocols > IP > Policy Filters > MTMDefaul

Configuring IP Multicasting and Multimedia Services1-2303527-A Rev. 00Multicast Host Groups IP multicasting is a method for addressing, routing, and d

Configuring IP Multicasting and Multimedia ServicesA-50303527-A Rev. 00Parameter: SourcesPath: Configuration Manager > Protocols > IP > Polic

Site Manager Parameters303527-A Rev. 00A-51 IGMP Boundary Group ParametersUse the following descriptions to set IGMP boundary group parameters.Paramet

Configuring IP Multicasting and Multimedia ServicesA-52303527-A Rev. 00Parameter: Prefix LengthPath: Configuration Manager > Protocols > IP >

303527-A Rev. 00B-1 Appendix B Multicasting ToolsThis appendix describes Bay Networks Technician Interface tools that allow you to troubleshoot a mult

Configuring IP Multicasting and Multimedia ServicesB-2303527-A Rev. 00mtraceThe mtrace command allows you trace the branch of a multicast tree from a

Multicasting Tools303527-A Rev. 00B-3 <source> is the source of the multicast tree.<destination> is the receiver for a particular multicas

Configuring IP Multicasting and Multimedia ServicesB-4303527-A Rev. 00mrinfoThe mrinfo command displays the capabilities of a DVMRP multicast router.

Multicasting Tools303527-A Rev. 00B-5 rsvpThe rsvp command allows you to view information about RSVP and set global configuration parameters.Enter the

Configuring IP Multicasting and Multimedia ServicesB-6303527-A Rev. 00 For example, the following rsvp command specifies the RSVP previous hops:$ rsvp

303527-A Rev. 00Index-7Aacronyms, xviiaddressesmulticast, 1-3supplying for tunnel, 4-34Advertise Self parameter, 4-29, A-9BBandwidth, A-27Bandwidth In

Multicasting and Multimedia Overview303527-A Rev. 001-3Multicast AddressesEach host group is assigned a unique multicast address. To reach all members

Index-8303527-A Rev. 00Eeducational services, xixEnable parameterDVMRPcircuit, 4-22, A-7global, 4-9, A-2tunnel, 4-35, A-11IGMPglobal, 3-5, A-15interfa

303527-A Rev. 00Index-9Leaf Timeout parameter, 4-15, A-3leaky bucket policing algorithm, 8-10Line Resource Managerpolicing algorithm, 8-7, 8-10Line Re

Index-10303527-A Rev. 00policy parameters (continued)Networks (announce), A-40Precedence (announce), A-41, A-46, A-49Prefix Length parameter, 3-21, A-

303527-A Rev. 00Index-11timergarbage, 4-13leaf, 4-15neighbor report, 4-14route expiration, 4-12RSVP default refresh, 7-8traffic filters, affect on mul

Configuring IP Multicasting and Multimedia Services1-4303527-A Rev. 00Multicast Extensions to OSPFMulticasting Extensions to OSPF (MOSPF) enhances the

Multicasting and Multimedia Overview303527-A Rev. 001-5IGMP RelayA router configured as an IGMP Relay (IGMP-R) device provides the following services

303527-A Rev. 002-1Chapter 2Starting Multicasting and Multimedia ServicesThis chapter explains how to perform a basic configuration -- that is, a conf

Configuring IP Multicasting and Multimedia Services2-2303527-A Rev. 00Starting IGMPWhen you configure any multicasting protocol described in this manu

Starting Multicasting and Multimedia Services303527-A Rev. 002-3Starting DVMRPTo start DVMRP on the router:1.Configure a circuit on a slot and connect

303527-A Rev. 00iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the acco

Configuring IP Multicasting and Multimedia Services2-4303527-A Rev. 00Starting MOSPFMOSPF is a multicasting extension of OSPF. To enable MOSPF, you mu

Starting Multicasting and Multimedia Services303527-A Rev. 002-5Starting RSVPTo start RSVP on the router:1.Configure a circuit on a slot and connector

Configuring IP Multicasting and Multimedia Services2-6303527-A Rev. 00RSVP is now running on the router with default values for all parameters. You cu

303527-A Rev. 003-1Chapter 3Configuring and Customizing IGMPThis chapter covers the following topics describing the Internet Group Management Protocol

Configuring IP Multicasting and Multimedia Services3-2303527-A Rev. 00IGMP Concepts and TerminologyThe Internet Group Management Protocol (IGMP) allow

Configuring and Customizing IGMP303527-A Rev. 003-3IGMP Host ReportsA host that receives a membership query from a local router can respond with a hos

Configuring IP Multicasting and Multimedia Services3-4303527-A Rev. 00Customizing Global IGMPWhen you configure a multicasting protocol on the router,

Configuring and Customizing IGMP303527-A Rev. 003-5Enabling and Disabling IGMPWhen you configure IGMP on the router, IGMP is automatically enabled.You

Configuring IP Multicasting and Multimedia Services3-6303527-A Rev. 00Estimating the Number of GroupsBy default, IGMP estimates that 20 groups will be

Configuring and Customizing IGMP303527-A Rev. 003-7Using Site ManagerSite Manager ProcedureYou do this System responds1. In the Configuration Manager

iv303527-A Rev. 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring IP Multicasting and Multimedia Services3-8303527-A Rev. 00Specifying a Version Threshold TimeBy default, 540 seconds can elapse after IGMP

Configuring and Customizing IGMP303527-A Rev. 003-9Configuring LoggingYou can use the BCC or Site Manager to specify the messages you want IGMP to log

Configuring IP Multicasting and Multimedia Services3-10303527-A Rev. 00Enabling Join AcknowledgmentsBy default, IGMP does not respond with an acknowle

Configuring and Customizing IGMP303527-A Rev. 003-11Specifying a Forwarding Cache LimitBy default, IGMP allows a maximum of 512 entries in the MTM for

Configuring IP Multicasting and Multimedia Services3-12303527-A Rev. 00Accepting a Nonlocal ReportBy default, IGMP rejects join and leave messages fro

Configuring and Customizing IGMP303527-A Rev. 003-13Customizing IGMP on an InterfaceWhen you add a multicast protocol to an IP interface, IGMP is enab

Configuring IP Multicasting and Multimedia Services3-14303527-A Rev. 00Enabling and Disabling IGMP on an InterfaceWhen you add a multicasting protocol

Configuring and Customizing IGMP303527-A Rev. 003-15Specifying a Query RateBy default, IGMP sends a group membership query on the interface every 120

Configuring IP Multicasting and Multimedia Services3-16303527-A Rev. 00Using Site ManagerSite Manager ProcedureYou do this System responds1. In the Co

Configuring and Customizing IGMP303527-A Rev. 003-17Specifying a Membership Timeout IntervalBy default, a local group membership is valid for 260 seco

303527-A Rev. 00v ContentsPrefaceBefore You Begin ...

Configuring IP Multicasting and Multimedia Services3-18303527-A Rev. 00Specifying a Designated Router Timeout IntervalBy default, 140 seconds can elap

Configuring and Customizing IGMP303527-A Rev. 003-19Specifying a Maximum Host Response TimeBy default, a host must wait 100 tenths of a second before

Configuring IP Multicasting and Multimedia Services3-20303527-A Rev. 00Specifying the Lifetime of a Cache Entry for MtraceIGMP creates entries in the

Configuring and Customizing IGMP303527-A Rev. 003-21Configuring a Static Host EntryA network may include a member of a multicast group that is unable

Configuring IP Multicasting and Multimedia Services3-22303527-A Rev. 00Configuring an IGMP Boundary GroupYou configure an IGMP boundary group by suppl

Configuring and Customizing IGMP303527-A Rev. 003-23Configuring IGMP PoliciesSite Manager allows you to create IGMP group pollicies and IGMP Static Fo

Configuring IP Multicasting and Multimedia Services3-24303527-A Rev. 00Use the following procedure to configure IGMP Static Forwarding Entry policies:

303527-A Rev. 004-1Chapter 4Customizing DVMRPThis chapter describes the Distance Vector Multicast Routing Protocol (DVMRP).Topic PageDVMRP Concepts an

Configuring IP Multicasting and Multimedia Services4-2303527-A Rev. 00DVMRP Concepts and TerminologyDVMRP is a multicasting protocol that provides a m

Customizing DVMRP303527-A Rev. 004-3Figure 4-1. Multicast RoutersADBCUnicastrouterMulticastrouterEa1a2b1b2c1c2d1d2d3e1MulticasthostMulticastcircuitTun

vi303527-A Rev. 00Chapter 3 Configuring and Customizing IGMPIGMP Concepts and Terminology ...

Configuring IP Multicasting and Multimedia Services4-4303527-A Rev. 00At startup, a DVMRP multicasting router:1. Initializes its routing table with in

Customizing DVMRP303527-A Rev. 004-5How DVMRP Chooses a RouteEach DVMRP interface is configured with a metric that indicates the cost of the hop. A ro

Configuring IP Multicasting and Multimedia Services4-6303527-A Rev. 00Routing TableTable 4-1 shows the principal items in a routing table entry.Note t

Customizing DVMRP303527-A Rev. 004-7Shortest-Path TreesRoute information used by DVMRP is independent of any other routing information used by the rou

Configuring IP Multicasting and Multimedia Services4-8303527-A Rev. 00Customizing DVMRP GloballyWhen you start DVMRP on the router, DVMRP runs with de

Customizing DVMRP303527-A Rev. 004-9Disabling and Reenabling DVMRPYou can use Site Manager to disable and reenable DVMRP on the router.Site Manager Pr

Configuring IP Multicasting and Multimedia Services4-10303527-A Rev. 00Setting the Update IntervalPeriodically, each multicasting router issues full o

Customizing DVMRP303527-A Rev. 004-11Configuring Tree PruningIf no members are detected on a branch of the shortest path tree for a given group, DVMRP

Configuring IP Multicasting and Multimedia Services4-12303527-A Rev. 00Configuring DVMRP TimersWhen a router adds or updates a route, it uses configur

Customizing DVMRP303527-A Rev. 004-13Setting the Garbage TimerThe garbage timer determines how long DVMRP advertises a route as unreachable before it

303527-A Rev. 00viiConfiguring Tree Pruning ...4-11Configuring DV

Configuring IP Multicasting and Multimedia Services4-14303527-A Rev. 00Setting the Neighbor Report TimerThe neighbor report timer specifies how long t

Customizing DVMRP303527-A Rev. 004-15Setting the Leaf TimerThe leaf timer determines whether or not a network or tunnel local to a given interface is

Configuring IP Multicasting and Multimedia Services4-16303527-A Rev. 00Specifying a Probe IntervalThe probe interval determines how often DVMRP sends

Customizing DVMRP303527-A Rev. 004-17Specifying a Route Switch IntervalThe route switch interval specifies how long the router should wait, without re

Configuring IP Multicasting and Multimedia Services4-18303527-A Rev. 00Estimating the Number of RoutesBy default, DVMRP preallocates a routing table f

Customizing DVMRP303527-A Rev. 004-19Logging Debugging MessagesBy default, DVMRP does not log debugging messages. You can use Site Manager to enable t

Configuring IP Multicasting and Multimedia Services4-20303527-A Rev. 00Specifying the Maximum Number of RoutesBy default, DVMRP stores all learned rou

Customizing DVMRP303527-A Rev. 004-21Enabling and Disabling Routing PoliciesBy default, routing policies are globally disabled.This parameter allows y

Configuring IP Multicasting and Multimedia Services4-22303527-A Rev. 00Customizing DVMRP on a CircuitYou customize DVMRP on a circuit by modifying DVM

Customizing DVMRP303527-A Rev. 004-23Disabling Multicast Support on a Unicast TunnelBy default, DVMRP:• Propagates multicast routing information on th

viii303527-A Rev. 00Chapter 5 Customizing OSPF Multicast ExtensionsMOSPF Overview ...

Configuring IP Multicasting and Multimedia Services4-24303527-A Rev. 00Calculating a Route Metric and Comparing Route CostsBy default, a circuit has a

Customizing DVMRP303527-A Rev. 004-25Specifying a ThresholdThreshold values control the scope of datagram delivery. The threshold is the minimum IP TT

Configuring IP Multicasting and Multimedia Services4-26303527-A Rev. 00By default, DVMRP uses a TTL value of 1. You can use Site Manager to specify a

Customizing DVMRP303527-A Rev. 004-27Configuring a Forwarding TableTo minimize the amount of time that it spends looking up routes, DVMRP creates and

Configuring IP Multicasting and Multimedia Services4-28303527-A Rev. 00By default, DVMRP uses a TTL of 7200 seconds (two hours) for entries in the for

Customizing DVMRP303527-A Rev. 004-29Disabling Advertisement of Local NetworksBy default, DVMRP advertises its own local networks over this circuit. U

Configuring IP Multicasting and Multimedia Services4-30303527-A Rev. 00Advertising a Default RouteBy default, DVMRP does not supply a default route on

Customizing DVMRP303527-A Rev. 004-31Listening for a Default RouteBy default, DVMRP does not listen for a default route on this circuit.You can use Si

Configuring IP Multicasting and Multimedia Services4-32303527-A Rev. 00Accepting a Report from a Nonstandard DVMRP NeighborBy default, DVMRP does not

Customizing DVMRP303527-A Rev. 004-33Configuring a TunnelYou configure a DVMRP tunnel by setting parameters as described under the following topics:To

303527-A Rev. 00ixChapter 8 Reserving Line ResourcesAbout Line Resource Reservation ...

Configuring IP Multicasting and Multimedia Services4-34303527-A Rev. 00Supplying Addresses for the TunnelTo identify a unicast tunnel, you must supply

Customizing DVMRP303527-A Rev. 004-35Disabling and Reenabling the TunnelWhen you configure a tunnel on a circuit, the tunnel is enabled by default. Yo

Configuring IP Multicasting and Multimedia Services4-36303527-A Rev. 00Choosing the Encapsulation ModeBy default, DVMRP encapsulates a tunneled multic

Customizing DVMRP303527-A Rev. 004-37Specifying the CostBy default, DVMRP assigns a metric of 1 to a tunnel. You can use Site Manager to specify a cos

Configuring IP Multicasting and Multimedia Services4-38303527-A Rev. 00Specifying a TTLBy default, DVMRP assigns a TTL value of 1 to a tunnel. This va

Customizing DVMRP303527-A Rev. 004-39Configuring a Forwarding Table for the TunnelBy default, DVMRP preallocates a forwarding table for 32 entries. Yo

Configuring IP Multicasting and Multimedia Services4-40303527-A Rev. 00When configuring a cache size, you must also keep in mind the TTL value for ent

Customizing DVMRP303527-A Rev. 004-41Advertising a Default RouteBy default, DVMRP does not supply a default route on this tunnel.You can use Site Mana

Configuring IP Multicasting and Multimedia Services4-42303527-A Rev. 00Listening for a Default RouteBy default, DVMRP does not listen for a default ro

Customizing DVMRP303527-A Rev. 004-43Specifying an Encapsulation Mode for Control MessagesTo maintain backward compatibility with earlier versions of