I'm having a bit of a problem, I'll try and explain the best I can without posting configs.
I have recently taken charge of administering a network. Our LAN consists of 15 Catalyst switches; the models vary. We have some 2950's, 3750's, and 3750G's. Our core switch is a 3750, and we have two pop switches, one of them a 2950 (named POP1), and a 3750G (POP2).
We have a VTP domain setup across all the switches. I have checked all of them, they all have the right domain, POP2 is the only VTP server, and all of the VTP revision # is the same across all 15 switches. Also, all of our switch to switch links are trunked and encapsulated DOT1Q (which I have manually checked).
We have VLAN 109 setup across our network, that connects to another link. This VLAN uplinks through POP2 (VTP Svr) to a Cisco SOHO 91. The port on POP2 is not trunked, it's on VLAN 109. Across the network, there are a handful of ports that don't have access to the network on VLAN 109; they can't pull DHCP. The DHCP server is directly connected to the SOHO. I can pull an IP and surf when I connect a client directly into the SOHO. Curveball; I can do the same thing when I connect a client into POP1 on VLAN 109. Everyone else can't on any other switch. The only thing I can't explain is that on POP1 and POP2, VLAN 109 shows up/up when I do a "show ip int vlan 109". On any switch that is beyond that, it shows as admin down/down. A no shut does not fix this, and I'm trying to stay out of vlan database. I shouldn't have to go in there anyways since they are VTP clients.
There is a port that I desperately need up on VLAN 109, connected to UserSw1 (Catalyst 3750). VLAN 109 is admin down/down on this switch, and the connections switch to switch are trunked. UserSw1 is directly connected with POP2. UserSw1 is running 12.0, POP2 is running 12.2.
Please let me know how to further troubleshoot this problem, or if you need more info. I'm out of ideas, and the evidence from troubleshooting this has me running in circles.