Congestion control processing method, message forwarding device and message receiving device

Abstract

The invention provides a congestion control processing method and a congestion control processing device. According to the method, a two-stage scheduling mode of forwarding equipment and destination equipment is adopted. That is to say, a network device of a data center network performs coarse-grained bandwidth allocation according to the weights of the streams sent to different destination devices. The network device allocates bandwidth that does not cause congestion to each flow, and notifies the destination device. And the destination devices perform fine-grained division, determine a maximum sending rate for each flow, and notify message sending equipment of the maximum sending rate. The method can adapt to different capabilities of different devices, and network congestion of an intermediate network and a last hop is eliminated.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a congestion control processing method, a message forwarding device, and a message receiving device. Background technique [0002] With the vigorous development of the data center network, more and more services are deployed in the data center network. In order to provide users with better service quality, the requirements for the data center network are getting higher and higher. For example, web services or storage services are very demanding on end-to-end latency. At present, the increase in data center delay is mainly due to the dynamic delay caused by congestion. When congestion occurs, the queue length increases or packet loss occurs, which significantly affects the service speed and service experience. [0003] Existing congestion control mechanisms include passive congestion control and active congestion control. Among them, in the passive congestio...

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Problems solved by technology

Among them, in the passive congestion control mechanism, the network equipment of the data center network does not perceive other concurrent flows, and the convergence speed to the steady state is relatively slow; while the active congestion control mechanism can ensure that the last hop is not congested or has short-term congestion, but due to multiple receiving The terminals are not aware of each other. When the number of intermediate forwarding devices is large, it may still cause multiple congestion points in the network.

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