Is there something special I need to do to enable an interface on the Nexus 5010? I have 2 of them, I plug into any of the 6509's on any of the X2-10GB-LRM on my WS-X6708-10GE blades in either switch. Plugging into any of the ports on the nexus 5010 that house the SFP-10G-SR modules. When I plug in, I get nothing at all, no light or anything. I have already done a "no shut" on the port on both sides and swapped 2 fiber patch cords. I don't know what else I can try. This stuff always just works!