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CLI-based Configuration Guide - IP Multicast

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document describes the principles and configurations of IP multicast, and provides configuration examples.
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Inter-AS Multicast Using MBGP and MSDP

Inter-AS Multicast Using MBGP and MSDP

Both Multiprotocol Border Gateway Protocol (MBGP) connections and MSDP connections are TCP connections. You can set up an MBGP peer relationship between two MSDP peers to ensure that SA messages can pass the RPF check.

Figure 6-7  Inter-AS multicast using MBGP and MSDP

As shown in Figure 6-7, the RPs in different PIM-SM domains are not directly connected to each other and the RPs and ASBRs are deployed on different routers. After you set up MSDP peer relationships between the RPs, you can also set up MBGP peer relationships between them to ensure that SA messages can pass the RPF check.

  • IBGP: set up IBGP peer relationships for RPs in the same AS, such as RP1 and RP2, and RP3 and RP4.

  • EBGP: set up EBGP peer relationships for RPs in different ASs, such as RP1 and RP3, and RP2 and RP4.

The MBGP peer relationship and MSDP peer relationship must be set up on the same interface. MBGP and MSDP are frequently used together. For details about MBGP, see "BGP" in the Huawei AR Series Access Routers Configuration Guide- IP Routing.

Updated: 2019-06-12

Document ID: EDOC1000097181

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