On 29/1/15 00:49, Tim Durack wrote: > > Copper and fiber. I've looked at some of the 1Gbps copper SFP's we have in the 10Gbps line cards, and yes, you can't set these things. The copper optic we have in there is a tri-rate unit (10/100/1000 BaseT), so I'm thinking it all relies on auto-neg. Mark.