{HEAD ~ The HGW} 419 provides uplink traffic, handles flow control to respond to satellite channel overload, and also acts as {TAIL ~ a proxy} for return channel traffic 
acts as
{ HEAD ~ The HGW } 419 provides uplink traffic , handles flow control to respond to satellite channel overload , and also acts as { TAIL ~ a proxy } for return channel traffic
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH