Use the show vtp status command to verify the
VTP configuration.
When
initially configuring switches in a VTP domain, pay close attention to the
configuration revision number. Check to see that it increments only when
changes are made at intended VTP servers.
In the example above,
"Configuration last modified by 0.0.0.0" specifies the IP address of
the switch that updated the VLAN database of this switch.
NOTE:
In this example, VTP version 2 is available (as shown by the "VTP
Version" line of the output), but not enabled (as shown by the "VTP
V2 Mode" line of the output).
VTP Counters Use the show vtp counters
command to display statistics about VTP operation.
Output from this command verifies if VTP updates are being sent and being
received by the switch and the number of updates that have been seen.
Common Problems with VTP Configuration The following unexpected
results can occur after VTP configuration:
This topic
identifies the state of the VTP configuration using the output to the
show vtp status command.
Use the show vtp
status command to verify the VTP configuration.
Lab
Exercise 1: Catalyst 2950T and 3550 Series VTP Domain and VLAN Trunking
Configure a VLAN trunk between two Cisco Catalyst WS-C2950T-24-EI switches
and a Cisco Catalyst WS-C3550-24-EMI switch in the command-line interface (CLI)
mode.
Lab
Exercise 2: Catalyst 2950T and 3550 Series VTP Pruning
Configure VTP
pruning between two Cisco Catalyst WS-C2950T-24-EI switches and a Cisco
Catalyst WS-C3550-24-EMI switch using the command-line interface (CLI)
mode.