Verifying Trunking

Verifying Trunking

1900 Series Switch

1900Switch#show trunk A
Displays trunking information about port 0/26
DISL state: On, Trunking: On, Encapsulation type: ISL

1900Switch#

2900 and 2950 Series Switches

29x0Switch#show int fa 0/1 switchport
Shows the status of the interface, including trunking information
Name: Fa0/1

Switchport: Enabled

Administrative mode: trunk

Operational Mode: trunk

Administrative Trunking Encapsulation: isl

Operational Trunking Encapsulation: isl

29x0Switch#

Configuring Dot1Q Trunks

Configuring Dot1Q Trunks

2900 Series Switch

2900Switch(config)#int fa 0/1	Enters interface mode
2900Switch(config-if)#switchport mode trunk	Turns port to trunking mode
2900Switch(config-if)#switchport trunk encapsulation dot1q	Sets encapsulation type to Dot1Qthis is the default encapsulation type

2950 Series Switch

2950Switch(config)#int fa 0/1	Enters interface mode
2950Switch(config-if)#switchport mode trunk	Turns port to trunking mode