案例2：多層交換機配置
VRRP SW1:
undo terminal monitor system-view sysname SW1
interface gi0/0/1 port link-type trunk port trunk
allow-pass vlan all
quit
interface vlanif 1 ip address 192.168.1.1 24 quit ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SW2: undo terminal monitor system-view sysname SW2
interface gi0/0/1
port link-type trunk port trunk allow-pass vlan all
quit
interface vlanif 1 ip address 192.168.1.2 24 quit ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SW3:
undo terminal monitor system-view sysname SW3
interface gi0/0/1
port link-type trunk port trunk allow-pass vlan all
quit
interface gi0/0/2
port link-type trunk port trunk allow-pass vlan all
quit
interface gi0/0/3 port link-type access port default vlan 1 quit ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VRRP 配置步驟：
1.配置終端設備； PC-1： 192.168.1.10 255.255.255.0 192.168.1.254 -->虛擬網關IP地址；
2.配置網絡設備； #配置交換設備 @配置交換機之間的鏈路 -> trunk @配置交換機與終端之間的鏈路 - access #配置路由設備 @網關(多層交換機上的虛擬接口)
3.配置 VRRP #在哪裡配置？ @在網關接口上配置 #如何配置？ @SW1: interface vlanif 1 vrrp vrid 1 virtual-ip 192.168.1.254 vrrp vrid 1 priority 200 quit @SW2: interface vlanif 1 vrrp vrid 1 virtual-ip 192.168.1.254 vrrp vrid 1 priority 150 quit
4.驗證 VRRP #驗證命令： #測試方法： 1.一直用 PC-1 訪問 虛擬網關IP地址； 2.斷開 主網關設備，準備切換為用來帶來的影響；
