VTP version 3, can't add VLAN

[Jean-Francois Gagnon]

Hello!

I'm currently running under VTP version 3.

Somehow, I can't add another VLAN.

switch1(config)#vlan 41
VTP VLAN configuration not allowed when device is not the primary server for vlan database.

Running:

Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.2(4)E3, RELEASE SOFTWARE (fc2)

WS-C3750X-48P 

I don't have the command:

vtp primary force 

Details:
switch1(config)#do show vtp stat
VTP Version capable : 1 to 3
VTP version running : 3
VTP Domain Name : myvtpdomain
VTP Pruning Mode : Enabled
VTP Traps Generation : Disabled
Device ID : 6d21.549e.2e81

Feature VLAN:
--------------
VTP Operating Mode : Server
Number of existing VLANs : 12
Number of existing extended VLANs : 0
Maximum VLANs supported locally : 1005
Configuration Revision : 15
Primary ID : 6d21.549e.2e81
Primary Description : ...
MD5 digest : ...

Feature MST:
--------------
VTP Operating Mode : Transparent

Feature UNKNOWN:
--------------
VTP Operating Mode : Transparent

Thanks for your help!

[Julio E. Moisa · Accepted solution]

Hi

If it is your VTP server, you can configure the following:

switch# vtp primary force

switch# vtp primary vlan 

Note: it is not configured from configuration terminal.

There are many diference configuring vtp v2 and v3, the server will not take the server role if you dont set up: vtp primary 

:-)

[acampbell]

Hi,

Have a read at this link from the 3750E config guide.
This explains the workings of VTP3.
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750e_3560e/software/release/15-0_2_se/configuration/guide/scg3750e/swvtp.html#wp1297372

You will need to make your VTP3 server a primary device to allow it to update the vlan database

!

vtp  primary

!

Hope this helps