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