HCIP BGP Comprehensive Experiment Establishing peers, route reflectors, federation, route announcement and aggregation

实验内容：

实验过程：

拓扑

各个路由器IP的配置

[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip a 12.1.1.1 24
[r1-GigabitEthernet0/0/0]int lo0
[r1-LoopBack0]ip a 10.10.10.10 24

在AS2中使用oSPF协议

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]a 0
[r2-ospf-1-area-0.0.0.0]network 172.16.0.1 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 172.16.112.1 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 172.16.192.1 0.0.0.0

 对所有路由启用BGP协议,and peer establishment

R1

[r1]bgp 1
[r1-bgp]route-select
[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.1.1.2 as 2

R2

[r2]bgp 64512
[r2-bgp]route-select
[r2-bgp]router-id 2.2.2.2
[r2-bgp]confederation id 2
[r2-bgp]confederation peer-as 64513
[r2-bgp]peer 12.1.1.1 as 1
[r2-bgp]peer 172.16.160.1 as 64512
[r2-bgp]peer 172.16.160.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.80.1 as 64513
[r2-bgp]peer 172.16.80.1 connect-interface LoopBack 0
[r2-bgp]peer 172.16.80.1 ebgp-max-hop 2
[r2-bgp]peer 172.16.160.1 next-hop-local
[r2-bgp]peer 172.16.80.1 next-hop-local

R3

[r3]bgp 64512
[r3-bgp]router-id 3.3.3.3
[r3-bgp]confederation id 2
[r3-bgp]peer 172.16.144.1 as 64512
[r3-bgp]peer 172.16.144.1 connect-interface LoopBack 0
[r3-bgp]peer 172.16.192.1 as 64512
[r3-bgp]peer 172.16.192.1 connect-interface LoopBack 0

R4

[r4]bgp 64512
[r4-bgp]router-id 4.4.4.4
[r4-bgp]confederation id 2
[r4-bgp]confederation peer-as 64513
[r4-bgp]peer 172.16.160.1 as 64512
[r4-bgp]peer 172.16.160.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.96.1 as 64513
[r4-bgp]peer 172.16.96.1 connect-interface LoopBack 0
[r4-bgp]peer 172.16.96.1 ebgp-max-hop 2

R5

[r5]bgp 64513
[r5-bgp]router-id 5.5.5.5
[r5-bgp]confederation id 2
[r5-bgp]confederation peer-as 64512
[r5-bgp]peer 172.16.192.1 as 64512
[r5-bgp]peer 172.16.192.1 connect-interface LoopBack 0
[r5-bgp]peer 172.16.192.1 ebgp-max-hop 2
[r5-bgp]peer 172.16.48.1 as 64513
[r5-bgp]peer 172.16.48.1 connect-interface LoopBack 0

R6

[r6]bgp 64513
[r6-bgp]router-id 6.6.6.6
[r6-bgp]confederation id 2
[r6-bgp]peer 172.16.80.1 as 64513
[r6-bgp]peer 172.16.80.1 connect-interface LoopBack 0
[r6-bgp]peer 172.16.96.1 as 64513
[r6-bgp]peer 172.16.96.1 connect-interface LoopBack 0

R7

[r7]bgp 64513
[r7-bgp]router-id 7.7.7.7
[r7-bgp]confederation id 2
[r7-bgp]confederation peer-as 64512
[r7-bgp]peer 172.16.48.1 as 64513
[r7-bgp]peer 172.16.48.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.144.1 as 64512
[r7-bgp]peer 172.16.144.1 connect-interface LoopBack 0
[r7-bgp]peer 172.16.144.1 ebgp-max-hop 2
[r7-bgp]peer 78.1.1.1 as 3
[r7-bgp]peer 172.16.48.1 next-hop-local
[r7-bgp]peer 172.16.144.1 next-hop-local

R8

[r8]bgp 3
[r8-bgp]router-id 8.8.8.8
[r8-bgp]peer 78.1.1.2 as 2

 R1\R8\AS2宣告路由信息  

R1

[r1]bgp 1
[r1-bgp]network 10.10.10.10 24

R8

[r8]bgp 3
[r8-bgp]network 80.80.80.80 24

R2

[r2]bgp 64512
[r2-bgp]import-route ospf 1

R7

[r7]bgp 64513
[r7-bgp]import-route ospf 1

 破除IBGP之间的水平分割,配置路由反射器

R3

[r3]bgp 64512
[r3-bgp]peer 172.16.192.1 reflect-client

R6

[r6]bgp 64513
[r6-bgp]peer 172.16.96.1 reflect-client

Routes are aggregated inR2\R7上配置

[r2]bgp 64512
[r2-bgp]aggregate 172.16.0.0 16 detail-suppressed 


[r7]bgp 64513
[r7-bgp]aggregate 172.16.0.0 16 detail-suppressed 

测试

 

 实验结束