The first receiving unit streams {TAIL ~ the content} to the second receiving unit through {HEAD ~ the network} 
The first receiving unit streams { TAIL ~ the content } to the second receiving unit through { HEAD ~ the network }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD