Router(config)# interface range gigabitethernet1/1 - 2
Router(config-if)#no ip address
Router(config-if)#switchport
Router(config-if)#switchport trunk encapsulation dot1q
Router(config-if)#switchport mode trunk
Router(config-if)#switchport trunk native vlan 1
Router(config-if)#channel-group 1 mode on
产生配置结果如下：
interface Port-channel1 ；自动产生，并且一定要如下所示，否则可能会有问题。
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/1
no ip address
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 1
channel-group 1 mode on
!
interface GigabitEthernet1/2
no ip address
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 1
channel-group 1 mode on
如果有问题，使用命令
#no int port-channel 1
#int range g2/1 -2
#no switchport