Cisco Systems 3560 Configuring a VTP Server

16-9

Catalyst 3560 Switch Software Configuration Guide

OL-8553-06

Chapter 16 Configuring VTP

Configuring VTP

• Do not enable VTP Version 2 on a switch unless all of the switches in the same VTP domain are

Version-2-capable. When you enable Version 2 on a switch, all of the Version-2-capable switches in

the domain enable Version 2. If there is a Version 1-only switch, it does not exchange VTP

information with switches that have Version 2 enabled.

• If there are TrBRF and TrCRF Token Ring networks in your environment, you must enable VTP

Version 2 for Token Ring VLAN switching to function properly. To run Token Ring and Token

Ring-Net, disable VTP Version 2.

When you configure VTP, you must configure a trunk port so that the switch can send and receive VTP

advertisements to and from other switches in the domain.

For more information, see the “Configuring VLAN Trunks” section on page 13-16.

If you are configuring VTP on a cluster member switch to a VLAN, use the rcommand privileged EXEC

command to log in to the member switch. For more information about the command, see the command

reference for this release.

If you are configuring extended-range VLANs on the switch, the switch must be in VTP transparent

mode.

VTP does not support private VLANs. If you configure private VLANs, the switch must be in VTP

transparent mode. When private VLANs are configured on the switch, do not change the VTP mode from

transparent to client or server mode.

Configuring a VTP Server

When a switch is in VTP server mode, you can change the VLAN configuration and have it propagated

throughout the network.

Note 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.

Beginning in privileged EXEC mode, follow these steps to configure the switch as a VTP server:

Command Purpose

Step 1 configure terminal Enter global configuration mode.

Step 2 vtp mode server Configure the switch for VTP server mode (the default).

Step 3 vtp domain domain-name Configure the VTP administrative-domain name. The name can be 1 to 32

characters. All switches operating in VTP server or client mode under the

same administrative responsibility must be configured with the same

domain name.

Step 4 vtp password password (Optional) Set the password for the VTP domain. The password can be 8 to

64 characters.

If you configure a VTP password, the VTP domain does not function

properly if you do not assign the same password to each switch in the

domain.