I've had a few offlist responses looking for the same or about coded optics. I've been able to use Brocade -coded optics from FiberStore, but a DAC which should be universal (and passes the muster for the Intel NICs it's plugged into) returns, " 2018/03/21-15:14:00, [NSM-1028], 2679, DCE, ERROR, sw0, Incompatible SFP transceiver for interface TenGigabitEthernet 54/0/16 is detected." Unfortunately, show media doesn't help because the interface is offline. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com ----- Original Message ----- From: "Mike Hammett" <nanog@ics-il.net> To: "NANOG list" <nanog@nanog.org> Sent: Wednesday, March 21, 2018 3:18:28 PM Subject: Brocade unsupported transceiver? Anyone know if there is a command in Brocade NOS (4.x) to force the use of an unsupported transceiver? If so, what is it? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com