The control portion may also contain control parameters for each specific component along the transmit or receive {HEAD ~ path} to coordinate {TAIL ~ the processing} of the packets 
to coordinate
The control portion may also contain control parameters for each specific component along the transmit or receive { HEAD ~ path } to coordinate { TAIL ~ the processing } of the packets
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH