Configuring Trunking

在配置trunk之前,要看下端口是否具备trunk的能力,使用show port capabilities命令查看,如下:
Switch_A> (enable) show port capabilities 1/1
Model                  WS-X5530
Port                    1/1
Type                   1000BaseSX
Speed                  1000
Duplex                 full
Trunk encap type         802.1Q,ISL
Trunk mode              on,off,desirable,auto,nonegotiate
Channel                 no
Broadcast suppression     percentage(0-100)
Flow control             receive-(off,on,desired),send-(off,on,desired)
Security                 no
Membership             static
Fast start                yes
Rewrite                  no
5种trunk模式如下:
1.on:启用trunk
2.off:不启用trunk
3.disirable:只要对方能够trunk,它就trunk
4.aut默认的模式,不关心是否能够trunk
5.nonnnegotiate:进行trunk但是不会和对方进行协商   net130整理
设置trunk port的命令如下:
Switch_A> (enable) set trunk [module_number/port_number] [on|off|desirable|auto|nonegotiate] [trunk_encapsulation_method]
例子:
Switch_A> (enable) set trunk 1/1 on isl
Port(s) 1/1 trunk mode set to on.
Port(s) 1/1 trunk type set to isl.
Switch_A> (enable)
2004 Jul 12 20:31:18 %DTP-5-TRUNKPORTON:Port 1/1 has become isl
trunk
Switch_A> (enable)
使用show trunk命令进行验证trunk信息