Configuring VTP
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.
Before you create extended-range VLANs (VLAN IDs 1006 to 4094), you must set VTP mode to
Note
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
Step 3
end
Step 4
show vtp status
Step 5
copy running-config startup-config
To return the switch to VTP server mode, use the no vtp mode global configuration command.
If extended-range VLANs are configured on the switch, you cannot change the VTP mode to server. You
Note
receive an error message, and the configuration is not allowed.
You can also configure VTP transparent mode by using the vlan database privileged EXEC command
Note
to enter VLAN database configuration mode and by entering the vtp transparent command, similar to
the second procedure under the
transparent VLAN database configuration command to return the switch to VTP server mode. If
extended-range VLANs are configured on the switch, you cannot change VTP mode to server. You
receive an error message, and the configuration is not allowed.
Cisco IE 3000 Switch Software Configuration Guide
14-12
Purpose
Enter global configuration mode.
Configure the switch for VTP transparent mode (disable VTP).
Return to privileged EXEC mode.
Verify your entries in the VTP Operating Mode and the VTP Domain
Name fields of the display.
(Optional) Save the configuration in the startup configuration file.
Only VTP mode and domain name are saved in the switch running
Note
configuration and can be copied to the startup configuration file.
"Configuring a VTP Server" section on page
Chapter 14
Configuring VTP
14-9. Use the no vtp
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