BGP选路规则专题文档，华为官方出品！

港控/mmm° 2023-10-12 20:45 101阅读 0赞

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了解BGP路由器对路由的处理过程，可以更好的控制BGP路由表。

BGP路由器对路由的处理过程可以概括为 图1-1。从 图1-1中可以看出：BGP路由来源包括从其他协议引入和从邻居学习两个部分。为了缩小路由表规模，可以先进行路由聚合。之后路由器进行路由选择、路由发送和路由下发IP路由表等过程。

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网上介绍BGP选路原则的文章参差不齐，甚至没有一篇文章能够讲的明白的。本文给大家分享一个华为官方出品的文档，专门介绍BGP选择原则的，希望对您有所帮助！

### 文档目录 ###

前  言....................................................................................................................................................ii
    1 BGP  路由器对路由的处理过程......................................................................................................1
    2  选路规则...........................................................................................................................................3
    3  理解 BGP  路由表.............................................................................................................................7
    4  路由属性.........................................................................................................................................13
    4.1 BGP 路由下一跳.........................................................................................................................................................15
    4.2 协议首选值..................................................................................................................................................................19
    4.3 本地优先级..................................................................................................................................................................24
    4.4 路由生成方式..............................................................................................................................................................37
    4.5 AIGP.............................................................................................................................................................................40
    4.6 AS_Path........................................................................................................................................................................44
    4.7 Origin............................................................................................................................................................................51
    4.8 MED.............................................................................................................................................................................54
    4.9 邻居类型......................................................................................................................................................................63
    4.10 IGP Cost.....................................................................................................................................................................63
    4.11 Cluster_List................................................................................................................................................................66
    4.12 Originator ID..............................................................................................................................................................68
    4.13 Router ID....................................................................................................................................................................71
    4.14 对等体地址................................................................................................................................................................71

### 文档截图（部分） ###

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### 文档下载 ###

链接：https://pan.quark.cn/s/99511d092f35
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