vlan 划分
config terminal
vlan 2
name vlan 2
exit
int f0/2
switchport mode access
switchport access vlan 2
还原接口到默认状态
(config)#default interface f0/2
查看vlan信息
show vlan brief
show vlan f0/2
Trunk配置
int f0/24
switchport trunk encapsulation {isl | dot1q | negotiate}
switchport mode {dynamic(desirable auto) | trunk}
传送未标记针
switchport trunk native vlan 2
如果不需要trunk传送某个vlan的数据,可以从trunk删除这个vlan
switchport trunk allowed vlan remove vlan 2
添加传送某个vlan
switchport trunk allowed vlan add vlan 2
查看验证接口模式
show interface f0/24 switchport
以太通道
1.思科专有协议PAgP
2.标准协议LACP
注意:参与捆绑的端口必须属于同一个vlan,如果端口为中继模式,则必须全部为中继模式,物理参数必须相同(双工,半双工)
interface range f0/1 - 2
channel-protocol pagp
channel-group 1 mode {on desirable auto off}
查看以太通道状态
show etherchannel summary
show etherchannel port