The performance of lossy data-center networks (DCNs) may degrade due to packet dropping (and possible retransmission) under congestion. In this article, we propose and evaluate a solution to deal with congestion in lossy DCNs, based on the same approach as the dynamic virtual lanes technique, previously proposed for lossless DCNs. This approach consists of isolating congesting flows in special queues, so that they do not share queues with noncongesting ones. This reduces the probability of standard queues becoming congested, thus reducing the dropping (and retransmission) of noncongesting packets and improving network performance. The experiment results confirm that these benefits are achieved by adding just a single special queue per switch port.

中文翻译：

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DVL-Lossy：隔离拥塞流以优化有损数据中心网络中的数据包丢弃

有损数据中心网络（DCN）的性能可能由于拥塞下的数据包丢失（以及可能的重传）而降低。在本文中，我们基于与先前针对无损DCN提出的动态虚拟通道技术相同的方法，提出和评估一种解决有损DCN拥塞的解决方案。这种方法包括在特殊队列中隔离拥塞流，以使它们不与非拥塞队列共享队列。这降低了标准队列拥塞的可能性，从而减少了非拥塞数据包的丢弃（和重新传输）并提高了网络性能。实验结果证实，通过在每个交换机端口上仅添加一个特殊队列即可实现这些好处。