案例2：多层交换机配置
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 配置步骤：
1.配置终端设备； PC-1： 192.168.1.10 255.255.255.0 192.168.1.254 -->虚拟网关IP地址；
2.配置网络设备； #配置交换设备 @配置交换机之间的链路 -> trunk @配置交换机与终端之间的链路 - access #配置路由设备 @网关(多层交换机上的虚拟接口)
3.配置 VRRP #在哪里配置？ @在网关接口上配置 #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.验证 VRRP #验证命令： #测试方法： 1.一直用 PC-1 访问 虚拟网关IP地址； 2.断开 主网关设备，准备切换为用来带来的影响；
