Enabling Vtp Version 2; Enabling Vtp Pruning - Cisco WS-C3560-48PS-S Software Configuration Manual

Chapter 13 Configuring VTP
transparent VLAN database configuration command to return the switch to VTP server mode. If
extended-range VLANs are configured on the switch, you cannot change VTP mode to server. You
receive an error message, and the configuration is not allowed.

Enabling VTP Version 2

VTP version 2 is disabled by default on VTP version 2-capable switches. When you enable VTP
version 2 on a switch, every VTP version 2-capable switch in the VTP domain enables version 2. You
can only configure the version on switches in VTP server or transparent mode.
Caution VTP version 1 and VTP version 2 are not interoperable on switches in the same VTP domain. Every
switch in the VTP domain must use the same VTP version. Do not enable VTP version 2 unless every
switch in the VTP domain supports version 2.
Note In TrCRF and TrBRF Token ring environments, you must enable VTP version 2 for Token Ring VLAN
switching to function properly. For Token Ring and Token Ring-Net media, VTP version 2 must be
disabled.
For more information on VTP version configuration guidelines, see the
page
Beginning in privileged EXEC mode, follow these steps to enable VTP version 2:
Command
Step 1 configure terminal
Step 2
vtp version 2
Step 3
end
Step 4 show vtp status
To disable VTP version 2, use the no vtp version global configuration command.
Note You can also enable VTP version 2 by using the vlan database privileged EXEC command to enter
VLAN database configuration mode and entering the vtp v2-mode VLAN database configuration
command. To disable VTP version 2, use the no vtp v2-mode VLAN database configuration command.

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 can only enable VTP pruning on a switch in VTP server
mode.
78-16156-01
13-9.
Purpose
Enter global configuration mode.
Enable VTP version 2 on the switch.
VTP version 2 is disabled by default on VTP version 2-capable switches.
Return to privileged EXEC mode.
Verify that VTP version 2 is enabled in the VTP V2 Mode field of the display.
"VTP Version" section on
Catalyst 3560 Switch Software Configuration Guide
Configuring VTP
13-13