The apparatus includes {HEAD ~ a data packet receiver} for receiving a data packet and a processor for determining the destination of {TAIL ~ the data packet} 
The apparatus includes { HEAD ~ a data packet receiver } for receiving a data packet and a processor for determining the destination of { TAIL ~ the data packet }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL