I have a need to send data from port-X using the TX side of a fiber SFP on switch-A to port-X on switch-B using the receive side of a fiber SFP.  I was able to do this on the 2960G by connecting the TX side of a SFP in port Y on switch-A to the RX si...

How do you test a SFP in a 2960X switch? In a 2960G I can loop the TX to RX on a GLC-LH-SM and the SFP and the port would go green.  In the 2060X it goes amber.  Anybody know what was changed to prohibit this capability?