Changing The Pruning-Eligible List - Cisco Catalyst 2960 Software Configuration Manual
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Also See for Catalyst 2960:
- Configuration manual (2288 pages) ,
- Command reference manual (800 pages) ,
- Hardware installation manual (108 pages)
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Configuring VLAN Trunks
Beginning in privileged EXEC mode, follow these steps to modify the allowed list of a trunk:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
switchport mode trunk
Step 4
switchport trunk allowed vlan {add |
all | except | remove} vlan-list
Step 5
end
Step 6
show interfaces interface-id switchport Verify your entries in the Trunking VLANs Enabled field of the display.
Step 7
copy running-config startup-config
To return to the default allowed VLAN list of all VLANs, use the no switchport trunk allowed vlan
interface configuration command.
This example shows how to remove VLAN 2 from the allowed VLAN list on a port:
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# switchport trunk allowed vlan remove 2
Switch(config-if)# end
Changing the Pruning-Eligible List
The pruning-eligible list applies only to trunk ports. Each trunk port has its own eligibility list. VTP
pruning must be enabled for this procedure to take effect. The
page 14-16
Beginning in privileged EXEC mode, follow these steps to remove VLANs from the pruning-eligible list
on a trunk port:
Command
Step 1
configure terminal
Step 2
interface interface-id
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
13-18
Purpose
Enter global configuration mode.
Specify the port to be configured, and enter interface configuration
mode.
Configure the interface as a VLAN trunk port.
(Optional) Configure the list of VLANs allowed on the trunk.
For explanations about using the add, all, except, and remove keywords,
see the command reference for this release.
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.
Return to privileged EXEC mode.
(Optional) Save your entries in the configuration file.
describes how to enable VTP pruning.
Purpose
Enter global configuration mode.
Select the trunk port for which VLANs should be pruned, and enter
interface configuration mode.
Chapter 13
Configuring VLANs
"Enabling VTP Pruning" section on
OL-26520-01
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