{TAIL ~ A command} is sent from the FIAC to the FIA to identify received FCoE frames to replace {HEAD ~ the source} and destination Ethernet MAC addresses 
{ TAIL ~ A command } is sent from the FIAC to the FIA to identify received FCoE frames to replace { HEAD ~ the source } and destination Ethernet MAC addresses
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH