We have a problem sometimes with our 35xx switches not passing traffic for a vlan.
Our core/distribution layer is a 6509 which is the vtp server for a about 60 vlans. This fibers out to our access layer 35xx switches. Ocassionally, we will power on a switch and it will not pass traffic for a particular vlan even though a show vlan indicates it is there and assigned to the specific port. Most of our switches are running 12.0(5.4)WC1 although we have a few on 5.1 and 5.3 code. It does not seem to be IOS dependent.
Thanks.