bgp路由反射器实验

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1、BGP路由反射器实验2009-09-0409:15:43标签：cisco路由bgp反射器原创作品，允许转载，转载时请务必以超链接形式标明文章原始出处、作者信息和本声明。否则将追究法律责任。http://ccjjzj.blog.51cto.com/802460/198667BGP路由反射器实验报告一、实验目的配置IBGP路由器使用路由反射器和简单的路由过滤器二、拓扑结构图三、实验步骤1.   配置基本接口地址(略)测试:sanjose3(config)#doping192.168.1.5sanjose3(config

2、)#doping172.24.1.18通基本地址配置成功2.   配置内部IBGP协议采用ripSanjose3(config-if)#routerripSanjose3(config-router)#net192.168.1.0Sanjose3(config-router)#net172.24.0.0sanjose1(config-if)#routerripsanjose1(config-router)#net192.168.1.0sanjose2(config-if)#routerripsanjose2(con

3、fig-router)#net172.24.0.03.   配置bgp协议sanjose3(config)#routerbgp100sanjose3(config-router)#neigh192.168.1.5remote-as100sanjose3(config-router)#neigh172.24.1.18remote-as100sanjose3(config-router)#net200.100.50.0sanjose1(config)#routerbgp100sanjose1(config-router

4、)#neigh192.168.1.6remote-as100sanjose2(config)#routerbgp100sanjose2(config-router)#neigh172.24.1.17remote-as100sanjose2(config-router)#net199.9.9.0查看结果:sanjose2#shipbgpNetworkNextHopMetricLocPrfWeightPath*>199.9.9.00.0.0.0032768ir>i200.100.50.0172.24.1.1701000

5、isanjose3#shipbgpNetworkNextHopMetricLocPrfWeightPathr>i199.9.9.0172.24.1.1801000isanjose1#shipbgpNetworkNextHopMetricLocPrfWeightPathr>i200.100.50.0192.168.1.601000isanjose1#showiprouteR200.100.50.0/24[120/1]via192.168.1.6,00:00:11,Serial0/0R172.24.0.0/16[120

6、/1]via192.168.1.6,00:00:11,Serial0/0192.168.1.0/30issubnetted,1subnetsC192.168.1.4isdirectlyconnected,Serial0/0问题:为什么在sanjose1上看不到哦啊199.9.9.0网络的bgp条目原因:因为在一个自治系统内,由于水平分割的原则,通过IBGP学习到的路径从来不会公告给其他IBGP4.   配置路由反射器打破水平分割sanjose3(config)#routerbgp100sanjose3(config

7、-router)#neigh192.168.1.5route-reflector-clientsanjose3(config-router)#neigh172.24.1.18route-reflector-clientsanjose1#shipbgpNetworkNextHopMetricLocPrfWeightPath*>i199.9.9.0172.24.1.1801000i*>i200.100.50.0192.168.1.601000isanjose1#shiprouteB199.9.9.0/24[200/0]

8、via172.24.1.18,00:00:52B200.100.50.0/24[200/0]via192.168.1.6,00:01:48R172.24.0.0/16[120/1]via192.168.1.6,00:00:14,Serial0/0192.168.1.0/30issubnetted,1subnetsC192.168.1.4isdirectlyc