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