In Priority Flow Control, Pause for Priority greater than 3 Pauses everything just like normal ethernet frame control Pause. I want that lets say pause for priority 4 pauses only priorty 4 traffic but currently it pauses everything.
Because PFC 0-2 works I would say that it's a bug with the limited information collected. I would upgrade to the Engineering recommended code "16.1.3.6-patch1-9" because 15.3 is no longer supported.