Changing The Pruning-Eligible List - Cisco 3020 - Catalyst Blade Switch Configuration Manual

Configuring VLAN Trunks
Command
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 gigabitethernet0/1
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 11-14
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
Step 3
switchport trunk pruning vlan {add |
except | none | remove} vlan-list
[,vlan[,vlan[,,,]]
Step 4
end
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
10-20
Purpose
(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.
Configure the list of VLANs allowed to be pruned from the trunk. (See
the "VTP Pruning" section on page
For explanations about using the add, except, none, and remove
keywords, see the command reference for this release.
Separate nonconsecutive VLAN IDs with a comma and no spaces; use a
hyphen to designate a range of IDs. Valid IDs are 2 to 1001.
Extended-range VLANs (VLAN IDs 1006 to 4094) cannot be pruned.
VLANs that are pruning-ineligible receive flooded traffic.
The default list of VLANs allowed to be pruned contains VLANs 2 to
1001.
Return to privileged EXEC mode.
Chapter 10 Configuring VLANs
"Enabling VTP Pruning" section on
11-4).
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