hi! > Any more ideas ? no, but I can confirm that I've got 7206VXR NPE-G1 (12.2(25)S7) uplinked to 3550-12G, native 1000BaseT ports on both sides (no gbics involved) and I don't see this kind of behaviour no special configuration at all, on VXR "no negotiation auto", all vlans permitted on 3550 trunk. -- tarko