【BGP实验系列之一】 BGP结合route-map 做MED 属性的选路 2013年3月15日 20:41:07
BGP 路径选择属性我们都知道很丰富,于是在做实验的时候就会很多因素可能影响你的实验结果,今天随手做做MED选路这个属性,但是出现了各种不可避免的失败,这两天一直在思考:拓扑如图:
各端口起lookback 1 X.X.X.X /24 各ibgp底层的IGP为rip。R1,R2各将lookback 2 通告就bgp
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
注意:本实验成功与否的至关重要一点就是IBGP邻居一定要注意设置neighbor 3.3.3.3 next-hop-self 否则就算选了另一条路,但是另一条路的下一条是不可达的,那就是路由黑洞,bgp表中也不会选这条路,结果就是还是走原路,route-map表不起效果!
data:image/png;base64,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
可以看到R3到达100.100.100.0/24以及200.200.200.0/24的下一跳都是23.1.1.2
可以看到R4到达100.100.100.0/24以及200.200.200.0/24的下一跳都是14.1.1.1
这是因为EBGP优与IBGP
现在要在R1 R2上做流量分行,R3 R4到达网络100.100.100.0/24 都是从R1走
而到达200.200.200.0/24都是从R2走
R1配置:
步骤1、access-list 1 permit 200.200.200.0 0.0.0.255
!
route-map deny200 permit 10 -------这里如果不敲permit 10 直接route-map deny200 回车默认就是序列为10
match ip address 1
set metric 10
route-map deny200 permit 20-------------注意,这个一定嘚敲,放行除了200.200.200.0的流量,否则会出现下面这个错误的路径(应为从14.1.1.1 去往100.100.100.100没被允许通过)
R4#
步骤2、应用route-map 在bgp中 做out方向------------只能是做out方向,通告EBGP邻居R4
neighbor 14.1.1.4 route-map deny200 out
注意: in 和out的区别路由条目发出去告诉邻居你该怎么走时候修改的就是out,等待收到邻居的通知你相关策略的就是in!
R2上的配置基本和R1类似,就是抓取100.100.100.100的流量,让R3去该流量走下一跳为4.4.4.4---R1
R2(config)#access-list 1pe 100.100.100.0 0.0.0.255
R2(config)#route-mapdeny100 permit10
R2(config-route-map)#match add 1
R2(config-route-map)#set metric10
R2(config)#route-map deny100 permit 20 -----------------------空的一定要设置 放行R3到达本地200.200.200.200 的流量
R2(config-route-map)#router bg 1
R2(config-router)#nei23.1.1.3 route-map deny100 out
R4完善后结果可见选路为 200.200.200.200 改走3.3.3.3----R2 OK!
data:image/png;base64,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
修改后的R3上选路结果OK
data:image/png;base64,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
配置已经贴出为附件
总结几点:
1,IBGP 邻居next-hop 一定要设置为self 否则选路就会是出现路由黑洞不可达
2.route-map空表放行, 空的不设置,导致自己的非ACL中路由被deny,
3,out 和in放向别搞错, out 是通告邻居, in是收通告, 主动和被动的关系
{:6_267:} 贴图不成功?? 我只贴拓扑图吧 ,实验现象配置了 应该是很容易看到的,
后续会继续更新实验BGP 完全搞懂BGP 支持原创 {:6_267:}{:6_267:}{:6_267:}{:6_267:} 谢谢共享资料
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