This was working fine until I did a couple of switch supervisor to move between SUP2 in slot 1 and slot 2. Suddenly the SUP2 in slot 2 cannot see the MSFC2 in slot 16. Before the failure I could see MSFC2 in slots 15 and 16 and I could do a session 15 and session 16, but now I can only do session 15. The problem is there whether SUP2 in slot 1 is made active or SUP2 in slot 2 is made active. Before I go and RMA a WS-X6k-SUP2-MSFC2= I thought I will check in this forum if my switch supervisor commands done a few times could have caused this problem or is it just a case of a hardware failure. I haven't reseated the MSFC2 as yet. I will try that next. ANy other suggestions????