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Summary: Exploiting the Predictability of TCP's Steadystate Behavior to Speed Up
Network Simulation
Qi He, Mostafa Ammar, George Riley, Richard Fujimoto
College of Computing, Georgia Institute of Technology
Atlanta, GA 30332
qhe, ammar@cc.gatech.edu, riley@ece.gatech.edu, fujimoto@cc.gatech.edu
Abstract
In discreteevent network simulation, a significant por
tion of resources and computation are dedicated to the cre
ation and processing of packet transmission events. For
largescale network simulations with a large number of
highspeed data flows, the processing of packet events is
the most time consuming aspect of the simulation. In this
work we develop a technique that saves on the processing
of packet events for TCP flows using the well established
results showing that the average behavior of a TCP flow is
predictable given a steadystate path condition. We exploit
this to predict the average behavior of a TCP flow over a fu
ture period of time where steadystate conditions hold, thus
allowing for a reduction (or elimination) of the processing
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