Default VTP configuration values depend on the switch model and the
software version. The default values for the Catalyst 2900, 4000 and 6000
series switches are as follows:

- VTP domain name: None
- VTP mode: Server
- VTP password: None
- VTP trap: Disabled (SNMP traps communicating VTP status)
The VTP domain name can be specified or learned from VTP updates seen
from other switches. By default, the domain name is not set.
You can set
a password for the VTP management domain. The password must be the same for all
switches in the domain in order for the VLAN database to be synchronized
between switches.
Steps to configure VTP on a switch
The steps to configure VTP
will vary per design and switch mode, but the general steps to configuring a
switch are as follows:
Step 1 Establish a design as to
what switches will be servers, client or transparent and what the boundaries
are for the VTP domain.
Step 2 Verify the
current VLAN information on any switch that will be configured as
server.
Step 3 Configure the switch
mode.
Step 4 Specify the VTP domain
name.
Step 5 Specify the version number, if
other than default.
Step 6 Specify the VTP
password (optional).
Step 7 Verify the
configuration.
Step 8 Verify that updates are
being sent from or received by the switch as intended.
To
configure a switch to become part of a VTP domain, follow these steps from
privileged EXEC mode.
