I have a MCX354A-FCBT adapter, MC2207128-003 passive cable and SX6015 unmanaged switch.
When connecting the cable to the adapter in loopback (i.e. between port A & B) the ibstat command reports a link rate of 56 which is good and what I would expect.
When connecting the cable to the adapter and switch in regular fashion (i.e. between port A & SX6015 switch port) the ibstat command reports a link rate of only 40??
What do I need to do to get the switch connection to link at 56?