VLANs are created on Layer 2 switches to control broadcasts and enforce the use of a Layer 3 device for communications.
Base ethernet MAC Address: : DD:29:7D:80Motherboard assembly number: 73-3985-07Power supply part number: 34-0940-01Motherboard serial number: FAA050309QLPower supply serial number: APQ04500145Model revision number: A0Motherboard revision number: B0Model number: WS-C3508G-XL-ENSystem serial number: FAA0503L0P5Configuration register is 0x F Below is the trunk port info from both switches. It refused to get the new vlan update and it is stuck to 27 vlans. I moved the switch to transparent mode and back to client Still no joy so I deleted the and moved the switch to transparent mode and added new vlan manually and all works okay. I have also carried out your suggestion of forcing a vlan update but it still won't sync. There are 8 switches on the network and they all have a trunk to the C3750 switch and all vlans are allowed out of the trunks from the C3750 switch.I then made the following checks to find out what was wrong. But I need to get this working as a client rather than manually updating the vlan changes. Many thanks Below is the vtp status on both the vtp server and the client. They all work fine with the exception of this C3508G switch. VTP version 2 mode is disabled across the entire network. Buck Weet Burt, The revision number on the vtp server goes up in increments of one everytime a change is made to the on the vtp server and this is what the clients in the same vtp domain use as a check point to update their vlan database. I checked the configuration revision number was not higher than the vtp server .