创建VLAN#vlan database#vlan 10#exit加入VLANconf-if#switchport mode accessconf-if#switchport access vlan
.
创建VLAN
#vlan database
#vlan 10
#exit
加入VLAN
conf-if#switchport mode access
conf-if#switchport access vlan 10
封装TRUNK
SW>
cont-if#switchport trunk encapsulation dot1q
cont-if#switchport mode trunk
单臂路由配置
Route>
conf#int f0/0>no shu
conf#int f0/0.1
conf-if-sub#encapsulation dot1q 10 封装到VLAN10
conf-if-sub#ip add 0.0.0.0 0.0.0.0 设置VLAN10的网关
VLAN1本征VLAN
switchport trunk native vlan 10 修改本征VLAN
SVI
SVI方式：三层交换机代替单臂路由，在交换机上设置VLAN 10和VLAN 20的网关
EthernetChannel 以太通道
端口聚合
conft#interface port-channel 1 设置通道1
conft#interface range f0/1-22 进入0-22端口
conft-if#channel-group 1 mode on
