18.8 BFD基础

6.配置RIP路由协议与BFD联动

1）R1配置的RIP，并使能RIP的BFD功能

[R1]RIP 1  
[R1-rip-1]version 2
[R1-rip-1]network 12.0.0.0
[R1-rip-1]network 13.0.0.0
[R1-rip-1]network 1.0.0.0
[R1]bfd
[R1]bfd 1 bind peer-ip 13.1.1.3 interface GigabitEthernet 0/0/2 one-arm-echo 
 //配置Router_1的单臂BFD特性
[R1-bfd-session-1]discriminator local 1
[R1-bfd-session-1]min-echo-rx-interval 200
[R1-bfd-session-1]commit
[R1]interface GigabitEthernet 0/0/2
[R1-GigabitEthernet0/0/2]rip bfd static
 //使能接口 GigabitEthernet0/0/2静态 BFD 功能

2）R2配置的RIP

[R2]RIP 1
[R2-rip-1]version 2
[R2-rip-1]network 12.0.0.0
[R2-rip-1]network 23.0.0.0
[R2-rip-1]network 2.0.0.0
[R3-rip-1]network 3.0.0.0

3）R3配置的RIP

[R3]RIP 1
[R3-rip-1]version 2
[R3-rip-1]network 13.0.0.0
[R3-rip-1]network 23.0.0.0

4）验证配置结果

[R1]dis bfd session all
Local Remote     PeerIpAddr      State     Type        InterfaceName            
1     -          13.1.1.3        Up        S_IP_IF     GigabitEthernet0/0/2     

5）关闭R1的G0/0/2，BFD会话关闭

[R1]interface GigabitEthernet 0/0/2
[R1-GigabitEthernet0/0/2]shutdown 
[R1-GigabitEthernet0/0/2]dis bfd session all
1     -          13.1.1.3        Down      S_IP_IF     GigabitEthernet0/0/2   

6）查看路由器A的RIP路由表，下一跳是R2

[R1]dis ip routing-table protocol rip
  2.2.2.2/32  RIP     100  1           D   12.1.1.2        GigabitEthernet0/0/0
        3.3.3.3/32  RIP     100  2           D   12.1.1.2        GigabitEthernet0/0/0
       13.0.0.0/8   RIP     100  2           D   12.1.1.2        GigabitEthernet0/0/0
       23.0.0.0/8   RIP     100  1           D   12.1.1.2        GigabitEthernet0/0/0

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