This can be accomplished by transmitting {HEAD ~ the missing packets} over a separate dial up network or a private virtual network from the retransmit servers to {TAIL ~ the repair server} 
to
This can be accomplished by transmitting { HEAD ~ the missing packets } over a separate dial up network or a private virtual network from the retransmit servers to { TAIL ~ the repair server }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL