Chapter 8 Configuring VLANs
How VLAN Trunks Work
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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
78-6511-05
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 the following procedure to take
effect. The “Enabling VTP Pruning” section on page 8-25 describes how to enable
VTP pruning.
Beginning in privileged EXEC mode, follow these steps to remove VLANs from
the pruning-eligible list on a trunk port:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Enter interface configuration mode, and select the trunk
port for which VLANs should be pruned.
Step 3
switchport trunk pruning vlan
remove vlan-id
Enter the VLANs to be removed from the pruning-eligible
list.
Separate nonconsecutive VLAN IDs with a comma and no
spaces; use a hyphen to designate a range of IDs. Valid IDs
are from 2 to 1001.
VLANs that are pruning-ineligible receive flooded traffic.
Step 4
exit Return to privileged EXEC mode.
Step 5
show interface interface-id
switchport
Verify your settings.
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