Packet scheduling scheme for improving short time fairness characteristic in weighted fair queueing
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United States of America Patent
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Aug 8, 2000
Issued Date -
N/A
app pub date -
Sep 10, 1997
filing date -
Sep 10, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A packet scheduling scheme which is capable of improving the fairness characteristic in a short time scale by suppressing the burstiness of traffic compared with the conventional weight fair queueing algorithm such as DRR. Packets are held in a plurality of packet queues by inputting arrived packets into the packet queues. Then, an output packet queue is sequentially selected from the packet queues, according to a prescribed criterion based on an amount of packets currently transmittable by each packet queue, such that the output packet queue is selected to be different from a previously selected output packet queue when there are more than one packet queues that satisfy the prescribed criterion. Then, a top packet is outputted from the sequentially selected output packet queue.
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