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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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Inter-AS Multicast Using Static RPF Peers

Inter-AS Multicast Using Static RPF Peers

As mentioned in RPF Check Rules for SA Messages, if an SA message is sent by an RPF peer, the message is accepted and forwarded to other MSDP peers. If you specify MSDP peers as static RPF peers to one another, these RPF peers accept SA messages without performing RPF checks.

Incorrect static RPF configurations may lead to looping of SA messages. Exercise caution when you configure static RPF peers. Static RPF peer relationships are usually set up among MSDP peers in multiple ASs.

Figure 6-8  Inter-AS multicast using static RPF peers

The configuration roadmap is as follows:
  1. Configure MSDP peers on RP1 and RP2.
  2. Configure RP1 and RP2 as static RPF peers of each other.
Updated: 2019-08-21

Document ID: EDOC1000141903

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