All trunk ports are configured as follows: interface FastEthernet0/48 description *****Connect to Idea Stream Data Center***** switchport trunk encapsulation dot1q switchport trunk native vlan 12 switchport trunk allowed vlan 12,50 switchport mode t...

Unfortunatly I need them to pass vlan information. I just have to give up and accept this implementation isn't going to work. I'll have to eliminate the two transparent switches. Thanks.

Do all switches in the path have to be configured as nonegotiate? I also need to allow certain vlans to transverse the trunk.

You are correct. I've attached a word doc with all the information I have. Thanks for your help.

I found the following on Cisco web:Error Message DTP-5-DOMAINMISMATCH: Unable to perform trunk negotiation on port [chars] because of VTP domain mismatch. Explanation This message means that the two ports involved in trunk negotiation belong to...