Disabling Vtp Version 2; Enabling Vtp Pruning - Cisco WS-C2955T-12 Software Manual

Chapter 8 Configuring VLANs

Disabling VTP Version 2

Beginning in privileged EXEC mode, follow these steps to disable VTP version 2:
Command
Step 1
vlan database
Step 2
no vtp v2-mode
Step 3 exit
Step 4 show vtp status

Enabling VTP Pruning

Pruning increases available bandwidth by restricting flooded traffic to those trunk links that the traffic
must use to access the destination devices. You enable VTP pruning on a switch in VTP server mode.
Pruning is supported with VTP version 1 and version 2. If you enable pruning on the VTP server, it is
enabled for the entire VTP domain.
Only VLANs included in the pruning-eligible list can be pruned. By default, VLANs 2 through 1001 are
pruning eligible on Catalyst 2900 XL and Catalyst 3500 XL trunk ports. For information, see the
"Changing the Pruning-Eligible List" section on page
Beginning in privileged EXEC mode, follow these steps to enable VTP pruning:
Command
Step 1 vlan database
Step 2
vtp pruning
Step 3
exit
Step 4
show vtp status
78-6511-08
Purpose
Enter VLAN configuration mode.
Disable VTP version 2.
Update the VLAN database, propagate it throughout the administrative
domain, and return to privileged EXEC mode.
Verify that VTP version 2 is disabled.
In the display, check the VTP V2 Mode field.
Purpose
Enter VLAN configuration mode.
Enable pruning in the VTP administrative domain.
By default, pruning is disabled. You only need to enable pruning on one
switch in VTP server mode.
Update the VLAN database, propagate it throughout the administrative
domain, and return to privileged EXEC mode.
Verify your entries.
In the display, check the VTP Pruning Mode field.
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
8-30.
Using VTP
8-19