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| 2.8 |  | VTP Configuration and VTP Pruning |
| 2.8.7 |  | Configure VTP pruning |

Enabling VTP pruning on a VTP server enables pruning for the entire management domain. VTP pruning takes effect several seconds after it is enabled. By default, VLANs 2 through 1000 or 2 through 1001 are pruning eligible, depending upon the platform. VTP pruning does not prune traffic from VLANs that are pruning ineligible. VLAN 1 is always pruning ineligible and VLAN 1 cannot be removed from a trunk. However, the “VLAN 1 disable on trunk” feature available on Catalyst 4000, 5000, and 6000 family switches enables the pruning of user traffic, but not protocol traffic such as CDP and VTP, for VLAN 1 from a trunk. Use the vtp pruning command to make VLANs pruning eligible on a Cisco IOS-based switch.

> Switch(vlan)#vtp pruning

Once pruning is enabled, use the switchport trunk pruning command to make a specific VLAN pruning ineligible.

> Switch(config)#interface fastethernet 0/3
> Switch(config-if)#switchport trunk pruning vlan remove vlan 5

The same commands can be used to enable pruning for all VLANs except for VLANs 5-10.