Design and Implementation of Congestion Control Mechanism in Data Center Network
Congestion control technology is the key to achieve ultra-low latency,high bandwidth and network stability in data center networks.It is difficult for the existing congestion control technology to combine low latency,high bandwidth and network stability at the same time.In this paper,a congestion control mechanism based on network awareness is proposed,which uses network in-band telemetry to obtain accurate link load information and control traffic accurately.By solving problems such as delayed information and overreaction to information during congestion,fast convergence is realized to utilize idle bandwidth and avoid congestion.The test re-sults show that in small data center networks,when the congestion control mechanism designed in this paper is compared with the dcqcn algorithm,the flow slowdown ratio of the former is only about 10％of the latter in the case of the first 99％traffic.
network awarenesscongestion controldata center networkultra-low latencylink load
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