HelloWe have Catalysts 6500 with the WS-X6K-SUP1A-2GE supervisor, and with the WS-F6K-MSFC on them.The paper on http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/cfgnotes/78_14357.htm says:"the Supervisor Engine 1A with an MSFC (WS-X6K-SUP...