SW1(config)#int f0/0

SW1(config-if)#switchport trunk encapsulation dot1q

SW1(config-if)#switchport mode trunk

SW1(config-if)#end

SW1#

*Mar 1 00:20:17.543: %SYS-5-CONFIG_I: Configured from console by console

SW1#show int f0/0 switchport

Name: Fa0/0

Switchport: Enabled

Administrative Mode: trunk

Operational Mode: down

Administrative Trunking Encapsulation: dot1q

Negotiation of Trunking: Disabled

Access Mode VLAN: 0 ((Inactive))

Trunking Native Mode VLAN: 1 (default)

Trunking VLANs Enabled: ALL

Trunking VLANs Active: none

Priority for untagged frames: 0

Override vlan tag priority: FALSE

Voice VLAN: none

Appliance trust: none

SW1#

CCNA VLAN Trunk 實驗