10-26
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 10 Configuring VTP
Configuring VTP Version 3
This example shows how to disable VTP using the off mode:
Console> (enable) set vtp mode off
Changing VTP mode for all features
VTP3 domain server modified
Note Because there is only the VLAN database in software releases 8.1(x) and 8.2(x), using the set vtp mode
off command without specifying the vlan keyword results in the same configuration as using the vlan
keyword. Note that in software release 8.3(1), support is added to propagate the MST database.
Console> (enable) show vtp domain
Version : running VTP3
Domain Name : ENG Password : configured
Notifications: disabled Switch ID : 00d0.004c.1800
Feature Mode Revision Primary ID Primary Description
-------------- -------------- ----------- -------------- ----------------------
VLAN Off
MST Off
UNKNOWN Transparent
Pruning : disabled
VLANs prune eligible: 2-1000
Console> (enable)
Configuring VTP Version 3 Passwords
Note For more information on passwords, see the “VTP Version 3 Authentication” section on page 10-13.
In VTP version 3, you can hide the VTP password from the configuration by adding the hidden keyword to
the password configuration. When you use the hidden keyword, the hexadecimal secret key that is generated
from the password is shown in the configuration instead of the password in plain text. If you configure a
password with the hidden keyword, you need to reenter the password to issue a takeover (for details on
configuring a takeover, see the “Configuring a VTP Version 3 Takeover” section on page 10-27).
Two different formats of the set vtp passwd command can be shown in the configuration: A plain text
password or an encrypted hexadecimal secret value. These two formats are exclusive; if you configure a
plain text password, it replaces a current secret password, and similarly, if you paste a secret password
into the configuration, the initial password is removed.
To configure VTP passwords, perform this task in privileged mode:
Task Command
Step 1
Disable VTP using the off mode. set vtp mode off
Step 2
Verify the VTP configuration. show vtp domain
Task Command
Step 1
Configure a VTP password. set vtp passwd passwd {hidden | secret}
Step 2
Verify the VTP password. show config
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