Cisco Catalyst 4500 Series Software Configuration Manual page 629

Chapter 17 Configuring VLANs, VTP, and VMPS
Enabling VTP Pruning
To enable VTP pruning in the management domain, perform this task:
Command
Step 1
Switch(config)# vtp pruning
Step 2
Switch# show vtp status | include pruning
This example shows one way to enable VTP pruning in the management domain:
Switch# configure terminal
Switch(config)# vtp pruning
Pruning switched ON
This example shows how to enable VTP pruning in the management domain with any release:
Switch# vtp pruning
Pruning switched ON
This example shows how to verify the configuration:
Switch# show vtp status | include Pruning
VTP Pruning Mode: Enabled
Switch#
For information about configuring prune eligibility, see the
page
Enabling the VTP Version Number
VTP version 2 is disabled by default on VTP version-2-capable network devices. When you enable VTP
version 2 on a network device, every VTP version-2-capable network device in the VTP domain enables
version 2.
VTP version 1 and VTP version 2 are not interoperable on network devices in the same VTP domain.
Caution
Every network device in the VTP domain must use the same VTP version. Do not enable VTP version 2
unless every network device in the VTP domain supports version 2.
In a Token Ring environment, you must enable VTP version 2 or VTP version 3 for Token Ring VLAN
Note
switching to function properly on devices that support Token Ring interfaces.
To enable the VTP version, perform this task:
Command
Step 1
Switch(config)# vtp version {1 | 2 | 3}
Step 2
Switch# show vtp status | include {v1 | v2 | v3}
17-10.
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Purpose
Enables VTP pruning in the management domain.
(Optional) Verifies the configuration.
"Understanding VTP Pruning" section on
Purpose
Enables the VTP version.
(Optional) Verifies the configuration.
VLAN Trunking Protocol
17-15