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According to the recent Internet traffic measurements the majority of the TCP flows are short lived. Use of short flow highest priority scheduling provides the performance improvement in the internet traffic. However, long lived flows competing against the short flows starve at some point. The authors propose a novel two class Queue State Packet Scheduling mechanism, namely QSPS which treats long flows fairly without degrading the performance of short flows. They studied the performance of long flows competing against short flows and their results are more efficient than the short flow highest priority scheduling.
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