Hi, I have cat 4006 with several cat3500 (GBIC trunk) and all vlans are defined on cat4006 and there is root vtp. Vlans works ok, on all swithes I see all of vlans, etc. Most of them are used on cat4006, one of vlan (no 3) is used on cat4006 and (remote, over the gbit trunks) cat3500's.
I'm observe strange behavior - when host on other vlans (ie 5, 11 etc) and connected to 4006 send's tcp packets to host in vlan 3 and physically connected to switch's over trunk (cat35000) - hosts in the same vlan but connected to cat 4006 received all tcp packet's (but only from other vlan to vlan 3, from 3 to 3 and 3 to other - no).
simple schema: :)[cat4006]=== gbic trunk ==[cat3500] host,vlan11 tcp--> host, vlan3 all hosts on vlan3 and cat4006 recive this packet
[cat4006]== gbic trunk ==[cat3500] host,vlan11