Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

DETAILED STEPS
Command or Action
Step 1
enable
Example:
Switch> enable
Step 2
configure terminal
Example:
Switch# configure terminal
Step 3 interface interface-id
Example:
Switch(config)# interface
gigabitethernet1/0/1
Step 4 switchport mode trunk
Example:
Switch(config-if)# switchport mode trunk
Step 5
switchport trunk allowed vlan {add | all | except |
remove} vlan-list
Example:
Switch(config-if)# switchport trunk allowed
vlan remove 2
Step 6 end
Example:
Switch(config)# end
Step 7 show interfaces interface-id switchport
Example:
Switch# show interfaces gigabitethernet1/0/1
switchport

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

Purpose
Enables privileged EXEC mode. Enter your password if
prompted.
Enters the global configuration mode.
Specifies the port to be configured, and enters interface
configuration mode.
Configures the interface as a VLAN trunk port.
(Optional) Configures the list of VLANs allowed on the trunk.
The vlan-list parameter is either a single VLAN number from
1 to 4094 or a range of VLANs described by two VLAN
numbers, the lower one first, separated by a hyphen. Do not
enter any spaces between comma-separated VLAN parameters
or in hyphen-specified ranges.
All VLANs are allowed by default.
Returns to privileged EXEC mode.
Verifies your entries in the Trunking VLANs Enabled field of
the display.
How to Configure VLAN Trunks
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