How to configure trunk on Cisco Catalyst Switch

Hi Rene

Please can you advise what I can do, I am trying to create vlan 50 on this switch and keep getting following

SW1(config)#vlan 50
VTP VLAN configuration not allowed when device is not the primary server for vlan database.
SW1#sh vtp status
VTP Version : 3 (capable)
VTP version running : 3
VTP Domain Name : CCIE-domain
VTP Pruning Mode : Disabled (Operationally Disabled)
VTP Traps Generation : Disabled
Device ID : aabb.cc00.0700

Feature VLAN:
--------------
VTP Operating Mode : Server
Number of existing VLANs : 8
Number of existing extended VLANs : 0
Configuration Revision : 0
Primary ID : 0000.0000.0000
Primary Description :
MD5 digest : 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Feature MST:
--------------
VTP Operating Mode : Transparent
Feature UNKNOWN:
--------------
VTP Operating Mode : Transparent

 

I tried deleting vlan.dat but to no avail

 

Thanks