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Modified Controlling Queue Delay for TCP fairness improvement

机译：改进的控制队列延迟以提高TCP公平性

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For overcoming performance decline caused by current long fat networks, many high performance TCPs have been proposed, such as Compound TCP and CUBIC TCP. These proposals have raised a new issue, which is fairness among these modern TCPs. For this issue, several fairness evaluations and some proposals for improving fairness were published. In our past work, we focused on Controlling Queue Delay (CoDel) and proposed a method for improving performance fairness of modern TCPs by modifying CoDel. However, this existing method assumed that the most bandwidth-consuming connection was given for network elements. In this paper, we discuss a method for improving TCP fairness without such an assumption. First, we present fairness evaluation among modern TCPs with and without CoDel, and then demonstrate that fairness among these TCPs is very poor. Second, we propose a method for improving performance fairness. The method monitors network packets and guesses the most bandwidth-consuming connection from the monitored packets. Then, it drops packets in the most bandwidth-consuming connections more aggressively in the network element. Third, we evaluate our proposed method and show that our method can improve performance fairness.
机译：为了克服当前长胖网络引起的性能下降，已经提出了许多高性能TCP，例如复合TCP和CUBIC TCP。这些建议提出了一个新问题，即这些现代TCP之间的公平性。针对此问题，发布了一些公平性评估和一些改善公平性的建议。在过去的工作中，我们集中于控制队列延迟（CoDel），并提出了一种通过修改CoDel来提高现代TCP性能公平性的方法。但是，这种现有方法假定为网络元素提供了最耗费带宽的连接。在本文中，我们讨论了一种在没有这种假设的情况下提高TCP公平性的方法。首先，我们介绍了有和没有CoDel的现代TCP之间的公平性评估，然后证明了这些TCP之间的公平性很差。其次，我们提出了一种提高绩效公平性的方法。该方法监视网络数据包，并从监视的数据包中猜测最消耗带宽的连接。然后，它会在网络元素中更积极地将数据包丢弃到最消耗带宽的连接中。第三，我们评估了我们提出的方法，并表明我们的方法可以提高性能公平性。

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