拓扑图
PC2的网关为40.1.1.2或者40.1.1.1
步骤一:
r1配置
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]ip address 10.1.2.1 255.255.255.0
[Huawei-GigabitEthernet0/0/1]interface GigabitEthernet 0/0/2
[Huawei-GigabitEthernet0/0/2]ip address 40.1.1.1 255.255.255.0
[Huawei-GigabitEthernet0/0/2]q
//配置端口IP
[Huawei]sysname r1
[r1]interface GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]vrrp vrid 1 virt
[r1-GigabitEthernet0/0/1]vrrp vrid 1 virtual-ip 10.1.2.3
[r1-GigabitEthernet0/0/1]q
//设置备份组1
r2配置
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]ip address 10.1.2.2 255.255.255.0
[Huawei-GigabitEthernet0/0/1]interface GigabitEthernet 0/0/2
[Huawei-GigabitEthernet0/0/2]ip address 40.1.1.2 255.255.255.0
[Huawei-GigabitEthernet0/0/2]q
//配置端口IP
[Huawei]sysname r2
[r2]interface GigabitEthernet 0/0/1
[r2-GigabitEthernet0/0/1]vrrp vrid 1 virtual-ip 10.1.2.3
[r2-GigabitEthernet0/0/1]q
//设置备份组1
步骤二:查看信息
[r1]dis vrrp brief
[r2]dis vrrp brief
步骤四:验证
PC>ping 40.1.1.100
PC>tracert 40.1.1.100 //查看到40.1.1.100路过的端口IP
[r1]interface GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]shutdown //关闭GigabitEthernet 0/0/1端口
步骤五:加强联系,实现双路线备份
先配置r2(因为r1和r2的优先级相同,默认100,所以先配置的为主路由器,后配置的为备份路由)
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]vrrp vrid 2 virtual-ip 10.1.2.4
[Huawei-GigabitEthernet0/0/1]q
[Huawei]dis vrrp brief
//将GigabitEthernet 0/0/1加入备份组2
后r1配置
[r1]interface GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]vrrp vrid 2 virtual-ip 10.1.2.4
[r1-GigabitEthernet0/0/1]q
[r1]dis vrrp brief
//将GigabitEthernet 0/0/1加入备份组2
解析(个人理解):
通俗来讲,也就是说正常情况下pc1过r1这条路径到达pc2,r2是r1的备份
pc3过r2这条路径到达pc2,r1是r2的备份
两者都可以过数据,也就是说不会浪费资源,同时两者有互为备份,提高了传输的可靠性。