BGP实验的问题：R1 R2 R3 R4 R5全部都是互联,R1属于AS100，R2R3R4属于AS200，R6属于AS300，然后R1有个环回 R1 R2 R3 R4都为300欧姆 R5为600欧姆是求开...
\u7269\u7406\uff1aR1=R2=R3=R4=30\u03a9,R5=60\u3002\u6c42\u5f00\u5173\u6253\u5f00\u4e0e\u95ed\u5408\u65f6a\uff0cb\u4e4b\u95f4\u7684\u7b49\u6548\u7535\u963b\u3002\u5f00\u5173\u65ad\u5f00\u65f6\uff1a R1,R2,R5\u5e76\u8054\uff0cR2\u4e0eR4\u4e32\u8054\uff0cR1\u4e0eR3\u4e32\u8054\uff0c\u5f97Rab=20\u03a9
\u5f00\u5173\u95ed\u5408\u65f6\uff1a R1,R2\u5e76\u8054\uff0cR3,R4\u5e76\u8054\uff0c\u56db\u4e2a\u7535\u963b\u4e24\u4e24\u4e32\u8054\u540e\u4e0eR5\u5e76\u8054\uff0c\u5f97Rab=300/11\u03a9
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\u5f00\u5173\u65ad\u5f00\u65f6\uff1a R1,R2,R5\u5e76\u8054\uff0cR2\u4e0eR4\u4e32\u8054\uff0cR1\u4e0eR3\u4e32\u8054\uff0c\u5f97Rab=20\u03a9
\u5f00\u5173\u95ed\u5408\u65f6\uff1a R1,R2\u5e76\u8054\uff0cR3,R4\u5e76\u8054\uff0c\u56db\u4e2a\u7535\u963b\u4e24\u4e24\u4e32\u8054\u540e\u4e0eR5\u5e76\u8054\uff0c\u5f97Rab=300/11\u03a9
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另外，你的R2R4之间应该没有起邻居关系，只要把R2R4起邻居，也可以学到。
是什么互联 是全互联?没图没真相
BGP传递路由的规则：BGP学来的路由的下一跳如果不可达 那么这条路由不可用 也不会传递
iBGP学来的路由不会传递给iBGP邻居
eBGP学来的路由 如果该路由也不存在于IGP表中 那么不可用 也不会传递
R2和R4之间建立ibgp邻居，同时要更改下一跳，华为命令为peer xxx next-hop-local，思科为
neighbor xxx next-hop-self
R2和R4之间起ibgp应该可以学到
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扩展阅读：扫一扫题目出答案 ... bgp综合配置实验 ... 固态硬盘用mbr还是gpt ... bgp ibgp实验ensp ... 一键修复丢失dll的方法 ... bgp路由协议配置实验 ... 华为bgp配置实例 ... ensp实验bgp路由注入 ... bgp基本配置实验 ...
