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Configuration Guide - IP Multicast

S7700 and S9700 V200R010C00

This document describes IP multicast basics and how to configure IP multicast features, including IGMP/MLD, PIM (IPv4&IPv6), MSDP, multicast VPN, Layer 3 multicast CAC, Layer 2 multicast CAC, IGMP/MLD snooping, and multicast VLAN, IPv4&IPv6 multicast route management, static multicast MAC address, multicast network.
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Configuring an RP

Configuring an RP

Context

To use the Anycast RP feature, configure multiple RPs with the same address in a PIM-SM domain. Before configuring Anycast RP in the PIM-SM domain, configure a loopback interface on each switch and assign the same IP address to the loopback interfaces. Then configure these interfaces as static RPs or candidate rendezvous points (C-RPs).

  • To use a static RP, configure the RP address on each switch in the PIM-SM domain.
  • To use a dynamic RP, C-RP address only on the switches that need to provide the Anycast RP function.
NOTE:

After an RP is configured, the RP interface address needs to be advertised using a unicast routing protocol so that each switch on the network has a reachable route to the RP interface.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface loopback interface-number

    The loopback interface view is displayed.

  3. Run:

    ip address ip-address { mask | mask-length }

    An IP address is configured for the loopback interface.

  4. (For dynamic RP configuration) Run:

    pim sm

    PIM-SM is enabled on the interface.

    This command is not required if you configure a static RP.

  5. Run:

    quit

    Return to the system view.

  6. Run:

    pim [ vpn-instance vpn-instance-name ]

    The PIM view is displayed.

  7. Configure the loopback interface address as a static RP address or C-RP address.

    • Configure a static RP.

      Run:

      static-rp rp-address

      The loopback interface address is configured as a static RP address.

    • Configure a dynamic RP.

      NOTE:

      When configuring dynamic RP, configure candidate bootstrap routers (C-BSRs). Ensure that the C-BSR and the C-RP addresses are different. For details on how to configure a C-BSR, see Configuring a C-BSR.

      Run:

      c-rp loopback interface-number

      The loopback interface address is configured as a C-RP address.

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Updated: 2019-08-21

Document ID: EDOC1000141903

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