环境
Switch>enable Switch#configure terminal Switch(config)#hostname SA (更改交换机名字) SA(config)#interface port-channel 1 (聚合通道1) SA(config-if)#exit SA(config)#interface fa0/22 SA(config-if)#channel-group 1 mode on (开启聚合通道1) SA(config-if)#interface fa0/23 SA(config-if)#channel-group 1 mode on SA(config-if)#interface fa0/24 SA(config-if)#channel-group 1 mode on SA(config-if)#exit SA(config)#interface port-channel 1 SA(config-if)#switchport mode trunk (交换机间链路类型为trunk) SA(config-if)#switchport trunk allowed vlan all (允许所有VLAN通过)
配置交换机1
```bash
Switch>enable
Switch#configure terminal
Switch(config)#hostname SB
SB(config)#interface port-channel 1
SB(config-if)#exit
SB(config)#interface range fa0/22-fa0/24 (同时开启聚合通道1)
SB(config-if)#channel-group 1 mode on
SB(config-if)#exit
SB(config)#interface port-channel 1
SB(config-if)#switchport mode trunk
SB(config-if)#switchport trunk allowed vlan all