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CLI-based Configuration Guide - IP Multicast

AR500, AR510, AR531, AR550, AR1500, and AR2500 V200R010

This document describes the concepts and configuration procedures of IP Service features on the device, and provides the configuration examples.
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(Optional) Configuring the MSDP Mesh Group

(Optional) Configuring the MSDP Mesh Group


MSDP peers have been configured. For details, see Configuring MSDP Peers.


An autonomous system (AS) may contain multiple MSDP peers. To prevent these MSDP peers from flooding Source-Active (SA) messages, configure an MSDP mesh group to optimize data traffic control.

MSDP peers in a mesh group forward SA messages that are sent by a peer not in the mesh group and pass the RPF check to other members in the group. If SA messages are sent by a group member, the messages are accepted without the RPF check and are not forwarded to other group members. This prevents MSDP peers from flooding SA messages and simplifies the RPF checking mechanism on MSDP peers.

You can set up an MSDP mesh group by configuring the same mesh group name for multiple MSDP peers.


  1. Run system-view

    The system view is displayed.

  2. Run msdp [ vpn-instance vpn-instance-name ]

    The MSDP view is displayed.

  3. Run peer peer-address mesh-group name

    The remote MSDP peer is added to the mesh group.

    • peer-address : specifies the address of the remote MSDP peer.

    • name : specifies the name of the mesh group. Members of the same mesh group use the same group name.

    Configuration notes:

    • Members of a mesh group set up an MSDP peer relationship with one another using the mesh topology.

    • The two members between which the connection is set up must recognize each other as the member of the same mesh group.

    • One MSDP peer can join only one mesh group. If an MSDP peer is configured to join different mesh groups several times, the latest configuration takes effect.

Updated: 2019-08-09

Document ID: EDOC1100034230

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