如图： 二层交换机配置：
<Huawei>sys Enter system view, return user view with Ctrl+Z. [Huawei]v b 10 20 Info: This operation may take a few seconds. Please wait for a moment...done. [Huawei]int e0/0/1 [Huawei-Ethernet0/0/1]p l a [Huawei-Ethernet0/0/1]p d v 10 [Huawei-Ethernet0/0/1]un sh Info: Interface Ethernet0/0/1 is not shutdown. [Huawei-Ethernet0/0/1]int e0/0/2 [Huawei-Ethernet0/0/2]p l a [Huawei-Ethernet0/0/2]p d v 20 [Huawei-Ethernet0/0/2]int g0/0/1 [Huawei-GigabitEthernet0/0/1]p l t [Huawei-GigabitEthernet0/0/1]p t a v 10 20 [Huawei-GigabitEthernet0/0/1]int g0/0/2 [Huawei-GigabitEthernet0/0/2]p l t [Huawei-GigabitEthernet0/0/2]p t a v 10 20左边三层交换机配置：
<Huawei>sys Enter system view, return user view with Ctrl+Z. [Huawei]sysname RSW1 [RSW1]v b 10 20 100 Info: This operation may take a few seconds. Please wait for a moment...done. [RSW1]int g0/0/2 [RSW1-GigabitEthernet0/0/2]p l t [RSW1-GigabitEthernet0/0/2]p t a v 10 20 [RSW1-GigabitEthernet0/0/2]int g0/0/1 [RSW1-GigabitEthernet0/0/1]p l a [RSW1-GigabitEthernet0/0/1]p d v 100 [RSW1-GigabitEthernet0/0/1]int vlanif 10 [RSW1-Vlanif10]ip add 192.168.10.10 24 [RSW1-Vlanif10]vrrp vrid 1 virtual-ip 192.168.10.1 [RSW1-Vlanif10]vrrp vrid 1 priority 120 [RSW1-Vlanif10]vrrp vrid 1 track interface g0/0/1 [RSW1-Vlanif10]vrrp vrid 1 track interface g0/0/2 [RSW1-Vlanif10]int vlanif20 [RSW1-Vlanif20]ip add 192.168.20.10 24 [RSW1-Vlanif20]vrrp vrid 2 virtual-ip 192.168.20.1 [RSW1-Vlanif20]vrrp vrid 2 priority 115 [RSW1-Vlanif20]int vlanif100 [RSW1-Vlanif100]ip add 11.0.0.2 30 [RSW1-Vlanif100]q [RSW1]ip route-static 0.0.0.0 0.0.0.0 11.0.0.1右边三层交换机配置：
<Huawei>sys Enter system view, return user view with Ctrl+Z. [Huawei]sysname RSW2 [RSW2]v b 10 20 100 Info: This operation may take a few seconds. Please wait for a moment...done. [RSW2]int g0/0/2 [RSW2-GigabitEthernet0/0/2]p l t [RSW2-GigabitEthernet0/0/2]p t a v 10 20 [RSW2-GigabitEthernet0/0/2]int g0/0/1 [RSW2-GigabitEthernet0/0/1]p l a [RSW2-GigabitEthernet0/0/1]p d v 100 [RSW2-GigabitEthernet0/0/1]int vlanif10 [RSW2-Vlanif10]ip add 192.168.10.20 24 [RSW2-Vlanif10]vrrp vrid 1 virtual-ip 192.168.10.1 [RSW2-Vlanif10]vrrp vrid 1 priority 115 [RSW2-Vlanif10]int vlanif20 [RSW2-Vlanif20]ip add 192.168.20.20 24 [RSW2-Vlanif20]vrrp vrid 2 virtual-ip 192.168.20.1 [RSW2-Vlanif20]vrrp vrid 2 priority 120 [RSW2-Vlanif20]vrrp vrid 2 track interface g0/0/1 [RSW2-Vlanif20]vrrp vrid 2 track interface g0/0/2 [RSW2-Vlanif20]int vlanif100 [RSW2-Vlanif100]ip add 12.0.0.2 30 [RSW2-Vlanif100]q [RSW2]ip route-static 0.0.0.0 0.0.0.0 12.0.0.1路由器配置：
<Huawei>sys Enter system view, return user view with Ctrl+Z. [Huawei]sysname R1 [R1]int g0/0/0 [R1-GigabitEthernet0/0/0]ip add 11.0.0.1 30 [R1-GigabitEthernet0/0/0]int g0/0/1 [R1-GigabitEthernet0/0/1]ip add 12.0.0.1 30 [R1-GigabitEthernet0/0/1]int loo 0 [R1-LoopBack0]ip add 1.1.1.1 24 [R1-LoopBack0]q [R1]ip route-static 192.168.10.0 24 11.0.0.2 [R1]ip route-static 192.168.10.0 24 12.0.0.2 preference 70 [R1]ip route-static 192.168.20.0 24 12.0.0.2 [R1]ip route-static 192.168.20.0 24 11.0.0.2 preference 70下面开始抓包测试： 让我们关掉左边三层交换机的g0/0/1端口看看vrrp报文怎么发的：
