{TAIL ~ The repair server} maintains an ordered list of the retransmit servers that are most likely to have buffered copies of {HEAD ~ packets} missing from the session 
{ TAIL ~ The repair server } maintains an ordered list of the retransmit servers that are most likely to have buffered copies of { HEAD ~ packets } missing from the session
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH