一、实验拓扑:
33-高级路由:BGP汇总:实验四 汇聚命令
二、实验要求:
1、R1部署192.168.8.1~192.168.11.1环回口;
2、R1在BGP进程下通告上述明细环回口路由;
3、R1上部署汇聚命令:aggregate-address 192.168.8.0 255.255.252.0
4、R1上部署汇聚命令:aggregate-address 192.168.8.0 255.255.252.0 summary-only
5、验证:R1部署汇总命令后,R2是否有汇总路由、明细路由?
6、验证:R1部署汇总命令后summary-only,R2是否有明细路由?

三、命令部署:
1、R1在BGP进程下通告192.168.8.0~192.168.11.0网段:
R1(config)#router bgp 1
R1(config-router)#network 192.168.8.0 mask 255.255.255.0
R1(config-router)#network 192.168.9.0 mask 255.255.255.0
R1(config-router)#network 192.168.10.0 mask 255.255.255.0
R1(config-router)#network 192.168.11.0 mask 255.255.255.0

2、R1在BGP进程下部署汇聚命令:
R1(config)#router bgp 1
R1(config-router)#aggregate-address 192.168.8.0 255.255.252.0

3、R1在BGP进程下部署汇聚命令summary-only
R1(config)#router bgp 1
R1(config-router)#aggregate-address 192.168.8.0 255.255.252.0 summary-only

四、验证:
1、验证:R2有明细和汇总:
R2#show ip route bgp
B 192.168.8.0/24 [20/0] via 12.1.1.1, 00:02:14
B 192.168.9.0/24 [20/0] via 12.1.1.1, 00:01:43
B 192.168.10.0/24 [20/0] via 12.1.1.1, 00:01:43
B 192.168.11.0/24 [20/0] via 12.1.1.1, 00:01:43
B 192.168.8.0/22 [20/0] via 12.1.1.1, 00:02:14

2、验证:R2只有汇总:
R2#show ip route bgp
B 192.168.8.0/22 [20/0] via 12.1.1.1, 00:04:15

转载于:https://blog.51cto.com/13856092/2137583

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