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