Cisco Catalyst 2960 Series User Manual

DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode. Enter your password if
prompted.
enable
Example:
Switch> enable
Step 1
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 2
Specifies the port to be configured, and enters interface
configuration mode.
interface interface-id
Example:
Switch(config)# interface
Step 3
gigabitethernet1/0/1
Configures the interface as a VLAN trunk port.switchport mode trunk
Example:
Switch(config-if)# switchport mode trunk
Step 4
(Optional) Configures the list of VLANs allowed on the trunk.switchport trunk allowed vlan {add | all | except |
remove} vlan-list
Step 5
The vlan-list parameter is either a single VLAN number from
1 to 4094 or a range of VLANs described by two VLAN
Example:
Switch(config-if)# switchport trunk allowed
numbers, the lower one first, separated by a hyphen. Do not
enter any spaces between comma-separated VLAN parameters
or in hyphen-specified ranges.
vlan remove 2
All VLANs are allowed by default.
Returns to privileged EXEC mode.end
Example:
Switch(config)# end
Step 6
Verifies your entries in the Trunking VLANs Enabled field of
the display.
show interfaces interface-id switchport
Example:
Switch# show interfaces gigabitethernet1/0/1
Step 7
switchport
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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How to Configure VLAN Trunks

Cisco Catalyst 2960 Series Specifications

General

Layer	Layer 2
Power over Ethernet (PoE)	Available on some models
RAM	128 MB
Flash Memory	32 MB
MAC Address Table Size	8000
Operating Temperature	0°C to 45°C (32 to 113°F)
Ports	24 or 48 x 10/100/1000