交换机端口3种类型access:接入终端,如PC,属于一个VLAN,不打tagtrunk:交换机见连接,承载多个VLAN,打taghybrid:接入终端或交换间连接,承载多个VLAN,默认VLAN打标
[S9306-GigabitEthernet2/0/42]dis this#interface GigabitEthernet2/0/42 原先的为trunk,port link-type