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Configuring VTP
If all switches are operating in VTP client mode, do not configure a VTP domain name. If you do, it is
Caution
impossible to make changes to the VLAN configuration of that domain. Therefore, make sure you
configure at least one switch as a VTP server.
Beginning in privileged EXEC mode, follow these steps to configure the switch as a VTP client:
Command
Step 1
configure terminal
Step 2
vtp domain domain-name
Step 3
vtp mode client
Step 4
vtp password password
Step 5
end
Step 6
show vtp status
Use the no vtp mode global configuration command to return the switch to VTP server mode. To return
the switch to a no-password state, use the no vtp password privileged EXEC command. When you
configure a domain name, it cannot be removed; you can only reassign a switch to a different domain.
Disabling VTP (VTP Transparent Mode)
When you configure the switch for VTP transparent mode, VTP is disabled on the switch. The switch
does not send VTP updates and does not act on VTP updates received from other switches. However, a
VTP transparent switch running VTP Version 2 does forward received VTP advertisements on its trunk
links.
Note
Before you create extended-range VLANs (VLAN IDs 1006 to 4094), you must set VTP mode to
transparent by using the vtp mode transparent global configuration command. Save this configuration
to the startup configuration so that the switch boots up in VTP transparent mode. Otherwise, you lose
the extended-range VLAN configuration if the switch resets and boots up in VTP server mode (the
default).
Beginning in privileged EXEC mode, follow these steps to configure VTP transparent mode and save the
VTP configuration in the switch startup configuration file:
Command
Step 1
configure terminal
Step 2
vtp mode transparent
Catalyst 2928 Switch Software Configuration Guide
14-10
Purpose
Enter global configuration mode.
(Optional) Enter the VTP administrative-domain name. The name can be 1
to 32 characters. This should be the same domain name as the VTP server.
All switches operating in VTP server or client mode under the same
administrative responsibility must be configured with the same domain
name.
Configure the switch for VTP client mode. The default setting is VTP
server.
(Optional) Enter the password for the VTP domain.
Return to privileged EXEC mode.
Verify your entries in the VTP Operating Mode and the VTP Domain Name
fields of the display.
Purpose
Enter global configuration mode.
Configure the switch for VTP transparent mode (disable VTP).
Chapter 14
Configuring VTP
OL-23389-01
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Troubleshooting
