The multicast session repair system includes a repair server in {HEAD ~ the network} providing {TAIL ~ the packets} it receives in the multicast session to the recipients 
providing
The multicast session repair system includes a repair server in { HEAD ~ the network } providing { TAIL ~ the packets } it receives in the multicast session to the recipients
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH