华为认证VRP特性描述-IP业务--MSDP部分配置文档 华为IP技术...

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5 MSDP ...........................................................................................................................................5-1
5.1 简介..............................................................................................................................................................5-2
5.1.1 PIM-SM 域..........................................................................................................................................5-2
5.1.2 MSDP 实现域间组播..........................................................................................................................5-2
5.2 MSDP 对等体...............................................................................................................................................5-4
5.3 MSDP 消息...................................................................................................................................................5-5
5.3.1 携带（S，G）信息的Source-Active 消息.......................................................................................5-6
5.3.2 SA 消息中封裝组播数据....................................................................................................................5-7
5.3.3 SA-Req 消息与SA-Resp 消息...........................................................................................................5-8
5.4 控制SA 消息的传递...................................................................................................................................5-9
5.4.1 RPF 检查.............................................................................................................................................5-9
5.4.2 Mesh Group 的应用..........................................................................................................................5-11
5.4.3 MBGP 与MSDP 的配合使用..........................................................................................................5-12
5.5 Anycast RP..................................................................................................................................................5-14
5.5.1 Anycast RP 应用环境........................................................................................................................5-14
5.5.2 Anycast RP 实现过程........................................................................................................................5-14
5.5.3 Anycast RP 的功能............................................................................................................................5-15
5.6 多实例的MSDP........................................................................................................................................5-15
5.7 MSDP 的应用.............................................................................................................................................5-16
5.7.1 AS 内PIM-SM 域间组播..................................................................................................................5-16
5.7.2 AS 间组播..........................................................................................................................................5-17
5.7.3 Anycast RP.........................................................................................................................................5-20
5.8 参考资料清单............................................................................................................................................5-21
图5-1 MSDP 实现域间组播..............................................................................................................................5-3
图5-2 MSDP 对等体位置..................................................................................................................................5-4
图5-3 MSDP 消息格式......................................................................................................................................5-5
图5-4 携带（S，G）信息的SA 消息格式.....................................................................................................5-6
图5-5 （S，G）Entry 字段格式......................................................................................................................5-7
图5-6 封裝了组播数据的SA 消息格式..........................................................................................................5-8
图5-7 MSDP 对等体配置方案........................................................................................................................5-10
图5-8 Mesh Group 内部成员之间的MSDP 对等体连接..............................................................................5-11
图5-9 MSDP 与MBGP 的配合使用..............................................................................................................5-13
图5-10 Anycast RP 典型组网图......................................................................................................................5-14
图5-11 AS 内PIM-SM 域间组播....................................................................................................................5-16
图5-12 使用MBGP 对等体实现AS 间组播................................................................................................5-17
图5-13 使用BGP 对等体实现AS 间组播....................................................................................................5-18
图5-14 使用静态RPF 对等体实现AS 间组播.............................................................................................5-19
图5-15 Anycast RP 应用..................................................................................................................................5-20
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