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 Hi Susan and Liu 
        If using 
the LossMonitor doesn't give me the required throughput then how do I go 
about calculating it? 
Do I have to calculate it from the trace 
file without considering the retransmissions? Is there any simpler 
method? 
        Thanks a 
lot. 
Sincerely 
Sai S.Oruganti TCP 
packets requires ACK. However, LossMonitor agent does not generate ACK. 
 
TCP 
sender will wait for a period of timeout before retransmitting the packet. And 
 
for 
every timeout, the 'timeout value' increases. So the 4 packets you see are 
probably 
4 
retransmission.   
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