1、R1配置:
[R1]interface g0/0/0
[R1-GigabitEthernet0/0/0]ip address 24
[R1]interface g0/0/1
[R1-GigabitEthernet0/0/1]ip address 24
2、R2配置:
[R2]interface g0/0/0
[R2-GigabitEthernet0/0/0]ip add
[R2-GigabitEthernet0/0/0]ip address 24
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add
[R2-GigabitEthernet0/0/1]ip address 24
3、R3配置:
[R3]interface g0/0/0
[R3-GigabitEthernet0/0/0]ip ad
[R3-GigabitEthernet0/0/0]ip address 24
[R3]interface g0/0/0
[R3-GigabitEthernet0/0/0]ip ad
[R3-GigabitEthernet0/0/0]ip address 24
[R3-LoopBack1]ip address 24
4、R1、R2配置vrrp,並監控g0/0/1
[R1-GigabitEthernet0/0/0]vrrp vrid 1 virtual-ip
[R1-GigabitEthernet0/0/0]vrrp vrid 1 track interface g0/0/1 reduced 50
[R2-GigabitEthernet0/0/0]vrrp vrid 1 virtual-ip
[R2-GigabitEthernet0/0/0]vrrp vrid 1 track interface g0/0/1 reduced 51
5、R1、R2、R3配置靜態路由,確保全網互通
[R1]ip route-static
[R2]ip route-static
[R3]ip route-static
[R3]ip route-static
6、測試
R1上查看vrrp
R2上查看
PC上測試
7、模擬R2->R3線路故障,測試路由
在PC上跟蹤路由
R2上看vrrp
vrrp自動切換R2為master路由,鏈路備份成功。