BGP实验

1.ip配置：

 R1

[R1]int e0/0/0
[R1-Ethernet0/0/0]ip add 12.1.1.1 24

R2

[R2]int e0/0/0
[R2-Ethernet0/0/0]ip add 12.1.1.2 24

[R2]int e0/0/1
[R2-Ethernet0/0/1]ip add 23.1.1.2 24

[R2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 25.1.1.2 24

R3

[R3]int e0/0/0
[R3-Ethernet0/0/0]ip add 23.1.1.3 24 

[R3]int e0/0/1
[R3-Ethernet0/0/1]ip add 34.1.1.3 24 

R4

[R4]int e0/0/0
[R4-Ethernet0/0/0]ip add 34.1.1.4 24 

[R4]int e0/0/1
[R4-Ethernet0/0/1]ip add 47.1.1.4 24  

R5

[R5]int e0/0/0
[R5-Ethernet0/0/0]ip add 56.1.1.5 24  

[R5]int e0/0/1
[R5-Ethernet0/0/1]ip add 25.1.1.5 24 

R6

[R6]int e0/0/0
[R6-Ethernet0/0/0]ip add 67.1.1.6 24  

[R3]int e0/0/1
[R3-Ethernet0/0/1]ip add 56.1.1.6 24 

R7

[R7]int e0/0/0
[R7-Ethernet0/0/0]ip add 47.1.1.7 24  

[R7]int e0/0/1
[R7-Ethernet0/0/1]ip add 67.1.1.7 24 

[R7]int g0/0/0
[R7-GigabitEthernet0/0/0]ip add 78.1.1.7 24 

R8

[R8]int e0/0/0
[R3-Ethernet0/0/0]ip add 78.1.1.8 24  

测试连通性

 

 

2.启动OSPF协议

  R2

[R2]ospf 1 router-id 2.2.2.2    
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0] network 12.1.1.0 0.0.0.255 
[R2-ospf-1-area-0.0.0.0] network 23.1.1.2 0.0.0.0 

[R2-ospf-1-area-0.0.0.0] network 25.1.1.2 0.0.0.0 

[R2-ospf-1-area-0.0.0.0]   network 2.2.2.2 0.0.0.

R3

[R3]ospf 1 router-id 3.3.3.3  
[R3-ospf-1]area 0
[R3-ospf-1-area-0.0.0.0]network 23.1.1.3 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 34.1.1.3 0.0.0.0 

[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0 

R4

 

[R4]ospf 1 router-id 4.4.4.4  
[R4-ospf-1]area 0
[R4-ospf-1-area-0.0.0.0]network 34.1.1.4 0.0.0.0 
[R4-ospf-1-area-0.0.0.0]network 47.1.1.4 0.0.0.0 

[R4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0 

R5

 

[R5]ospf 1 router-id 5.5.5.5    
[R5-ospf-1]area 0
[R5-ospf-1-area-0.0.0.0]network 56.1.1.5 0.0.0.0 
[R5-ospf-1-area-0.0.0.0]network 25.1.1.5 0.0.0.0 

[R5-ospf-1-area-0.0.0.0]network 5.5.5.5 0.0.0.0 

R6

 

[R6]ospf 1 router-id 6.6.6.6   
[R6-ospf-1]area 0
[R6-ospf-1-area-0.0.0.0]network 67.1.1.6 0.0.0.0 
[R6-ospf-1-area-0.0.0.0]network 56.1.1.6 0.0.0.0 

[R6-ospf-1-area-0.0.0.0]network 6.6.6.6 0.0.0.0 

R7

 

[R7]ospf 1 router-id 2.2.2.2    
[R7-ospf-1]area 0
[R7-ospf-1-area-0.0.0.0] network 47.1.1.7 0.0.0.0 
[R7-ospf-1-area-0.0.0.0] network 67.1.1.7 0.0.0.0 

[R7-ospf-1-area-0.0.0.0] network 78.1.1.7 0.0.0.0 

[R7-ospf-1-area-0.0.0.0] network 7.7.7.7 0.0.0.0 

3.部署BGP协议

R1

[R1]bgp 100
[R1-bgp]router-id 1.1.1.1
[R1-bgp] peer 12.1.1.2 as-number 20 
 

R2

 

[R2]bgp 234
[R2-bgp]router-id 2.2.2.2
[R2-bgp]confederation id 20
[R2-bgp]confederation peer-as 456
[R2-bgp] peer 3.3.3.3 as-number 234 

[R2-bgp] peer 3.3.3.3 connect-interface LoopBack0

[R2-bgp] peer 12.1.1.1 as-number 100 

[R2-bgp] peer 25.1.1.5 as-number 456 

 

R3

[R3]bgp 234
[R3-bgp]router-id 3.3.3.3
[R3-bgp]confederation id 20

[R3-bgp] confederation peer-as 456
[R3-bgp]peer 2.2.2.2 as-number 234 
[R3-bgp]peer 2.2.2.2 connect-interface LoopBack0
[R3-bgp]peer 4.4.4.4 as-number 234 
[R3-bgp]peer 4.4.4.4 connect-interface LoopBack0
 

 R4

[R4]bgp 234
[R4-bgp]router-id 4.4.4.4
[R4-bgp]confederation id 20

[R4-bgp] confederation peer-as 456
[R4-bgp]peer 3.3.3.3 as-number 234 
[R4-bgp]peer 3.3.3.3 connect-interface LoopBack0

[R4-bgp]peer 47.1.1.7 as-number 456 

R5

[R5]bgp 456
[R5-bgp]router-id 5.5.5.5
[R5-bgp]confederation id 20

[R5-bgp] confederation peer-as 234
[R5-bgp]peer 6.6.6.6 as-number 456 
[R5-bgp]peer 6.6.6.6 connect-interface LoopBack0

[R5-bgp]peer 25.1.1.2 as-number 234 

R6

[R6]bgp 456
[R6-bgp]router-id 6.6.6.6
[R6-bgp]confederation id 20

[R6-bgp] confederation peer-as 234
[R6-bgp] peer 5.5.5.5 as-number 456 
[R6-bgp] peer 5.5.5.5 connect-interface LoopBack0
[R6-bgp] peer 7.7.7.7 as-number 456 
[R6-bgp] peer 7.7.7.7 connect-interface LoopBack0

R7

 

[R7]bgp 456
[R7-bgp]router-id 7.7.7.7
[R7-bgp]confederation id 20

[R7-bgp] confederation peer-as 234
[R7-bgp] peer 6.6.6.6 as-number 456 
[R7-bgp] peer 6.6.6.6 connect-interface LoopBack0
[R7-bgp]  peer 78.1.1.8 as-number 300 

[R7-bgp]  peer 47.1.1.4 as-number 234 

R8

 

[R8]bgp 300
[R8-bgp]router-id 8.8.8.8
[R8-bgp] peer 78.1.1.7 as-number 20 

4.配置路由反射器

 R3

[R3-bgp]peer 2.2.2.2 enable
[R3-bgp]peer 2.2.2.2 reflect-client

[R3-bgp]peer 4.4.4.4 enable
[R3-bgp]peer 4.4.4.4 reflect-client

R6

 

[R6-bgp]peer 5.5.5.5 enable
[R6-bgp]peer 5.5.5.5 reflect-client

[R6-bgp]peer 7.7.7.7 enable
[R6-bgp]peer 7.7.7.7 reflect-client

5.测试