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Favourqueue: A Parameterless Active Queue Management to Improve TCP Traffic Performance

Abstract : This paper presents and analyses the implementation of a novel active queue management (AQM) named FavorQueue that aims to improve delay transfer of short lived TCP flows over best-effort networks. The idea is to dequeue packets that do not belong to a flow previously enqueued first. The rationale is to mitigate the delay induced by long-lived TCP flows over the pace of short TCP data requests and to prevent dropped packets at the beginning of a connection and during recovery period. Although the main target of this AQM is to accelerate short TCP traffic, we show that FavorQueue does not only improve the performance of short TCP traffic but also improves the performance of all TCP traffic in terms of drop rationand latency whatever the flow size. In particular, we demonstrate that FavorQueue,reduces the loss of a retransmitted packet, decreases the number of dropped pack- ets recovered by RTO and improves the latency up to 30% compared to DropTail. Finally, we show that this scheme remains compliant with recent TCP updates such as the increase of the initial slow-start value.
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Pascal Anelli, Rémi Diana, Emmanuel Lochin. Favourqueue: A Parameterless Active Queue Management to Improve TCP Traffic Performance. Computer Networks, Elsevier, 2013, pp.35. ⟨10.1016/j.bjp.2013.11.008⟩. ⟨hal-01186141⟩



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