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18-13
Cisco IE 2000 Switch Software Configuration Guide
OL-25866-01
Chapter 18 Configuring VTP
How to Configure VTP
Enabling VTP Pruning
Configuring VTP on a Per-Port Basis
Adding a VTP Client Switch to a VTP Domain
Before You Begin
Before adding a VTP client to a VTP domain, always verify that its VTP configuration revision number
is lower than the configuration revision number of the other switches in the VTP domain. Switches in a
VTP domain always use the VLAN configuration of the switch with the highest VTP configuration
revision number. With VTP versions 1 and 2, adding a switch that has a revision number higher than the
revision number in the VTP domain can erase all VLAN information from the VTP server and VTP
domain. With VTP version 3, the VLAN information is not erased.
Command Purpose
Step 1
configure terminal Enters global configuration mode.
Step 2
vtp pruning Enables pruning in the VTP administrative domain.
By default, pruning is disabled. You need to enable pruning on only one switch
in VTP server mode.
Step 3
end Returns to privileged EXEC mode.
Step 4
show vtp status Verifies your entries in the VTP Pruning Mode field of the display.
Command Purpose
Step 1
configure terminal Enters global configuration mode.
Step 2
interface interface-id Identifies an interface, and enters interface configuration mode.
Step 3
vtp Enables VTP on the specified port.
Step 4
end Returns to privileged EXEC mode.
Step 5
show running-config interface
interface-id
Verifies the change to the port.
Step 6
show vtp status Verifies the configuration.
Command Purpose
Step 1
show vtp status Checks the VTP configuration revision number.
If the number is 0, add the switch to the VTP domain.
If the number is greater than 0, follow these steps:
a. Write down the domain name.
b. Write down the configuration revision number.
c. Continue with the next steps to reset the switch configuration revision number.
Step 2
configure terminal Enters global configuration mode.