vrrp配置步骤：

思路：

1.在终端处配置好IP、DNS、子网掩码2.在每台交换机处配置好创建vlan10 203.在交换机sw1、sw2、sw3每个接口处用accress 配置4.配置vrrp：SW1:vlan batch 10 20 int Ethernet0/0/1port link-type accessport default vlan 10int Ethernet0/0/2port link-type accessport default vlan 10int Ethernet0/0/3port link-type trunkport trunk allow-pass vlan 2 to 4094SW1-GigabitEthernet0/0/2port link-type trunkport trunk allow-pass vlan 2 to 4094

SW2：

vlan batch 10 20 interface GigabitEthernet0/0/3port link-type trunkport trunk allow-pass vlan 2 to 4094interface GigabitEthernet0/0/1port link-type trunkport trunk allow-pass vlan 2 to 4094

interface Vlanif20 ip address 192.168.20.253 255.255.255.0 vrrp vrid 20 virtual-ip 192.168.20.254 vrrp vrid 20 priority 200 vrrp vrid 20 preempt-mode timer delay 10 vrrp vrid 20 track interface                GigabitEthernet0/0/1 reduced 150  interface GigabitEthernet0/0/1 port link-type access port default vlan 12

SW3:

VLAN BATCH 10 20interface GigabitEthernet0/0/3port link-type trunkport trunk allow-pass vlan 2 to 4094

interface Vlanif20 ip address 192.168.20.252 255.255.255.0 vrrp vrid 20 virtual-ip 192.168.20.254 R1： interface GigabitEthernet0/0/0 ip address 192.168.12.2 255.255.255.0  int g0/0/1 ip address 192.168.4.254 24   ip route-static 192.168.20.0 24 192.168.23.1     后面还有在路由和交换机SW2 、SW3 分别配置下一跳地址，但是由于时间原因所以没有补全，请凉解！！