Enabling Vtp Version 2 - Cisco Catalyst 3550 series Software Configuration Manual

Configuring VTP
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
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 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 configuration mode and by entering the vtp transparent command, similar to the second
procedure under the
VLAN 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.

Enabling VTP Version 2

VTP version 2 is disabled by default on VTP version 2-capable switches. When you enable VTP
version 2 on a switch, every VTP version 2-capable switch in the VTP domain enables version 2. You
can only configure the version on switches in VTP server or transparent mode.
VTP version 1 and VTP version 2 are not interoperable on switches in the same VTP domain. Every
Caution
switch in the VTP domain must use the same VTP version. Do not enable VTP version 2 unless every
switch in the VTP domain supports version 2.
Catalyst 3550 Multilayer Switch Software Configuration Guide
13-12
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 13 Configuring VTP
13-9. Use the no vtp transparent
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