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Congestion control methods, devices and system

A technology of congestion control and congestion degree, applied in the field of communication, it can solve the problem of a single method of congestion notification message congestion control, and achieve the effects of high control accuracy, alleviation of network congestion, and improvement of bandwidth utilization.

Active Publication Date: 2018-10-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the content of the congestion notification message and the way of congestion control are relatively simple in the related art, the embodiment of the present invention provides a congestion control method, device and system

Method used

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  • Congestion control methods, devices and system
  • Congestion control methods, devices and system
  • Congestion control methods, devices and system

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Embodiment Construction

[0048] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0049] figure 1 is an architecture diagram of a data center network provided by an embodiment of the present invention, such as figure 1 As mentioned, the data center network may include multiple switching devices (shown as 10a and 10b in the figure) and multiple servers (shown as 20a-20d in the figure). Wherein each server can be connected to a switching device through a network port card (English: network interface card, NIC) 21, and the multiple switching devices 10a and 10b can realize multiple servers 20a-20d in the data center network by forwarding messages. Communication between any two servers in . Wherein, each server can be assigned a unique Internet protocol (English: internet protocol, IP) address, for example, the ...

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Abstract

The invention discloses congestion control methods, devices and a system, and belongs to the technical field of communication. The method includes the following steps: exchange equipment or a receiving terminal server can obtain a congestion message and congestion information of the exchange equipment when network congestion occurs in the exchange equipment; a congestion notification message can be sent to a sending terminal server, the congestion notification message carries the congestion information, and the congestion information is used for instructing the congestion level of a caching queue used for forwarding the congestion message in the exchange equipment; and the sending rate of the data flow to which a caching message belongs can be reduced according to different deceleration rates in accordance with the congestion level of the caching queue after the sending terminal server receives the congestion notification message. The method enriches the contents of the congestion notification message and enhances the precision of congestion control; network bandwidth utilization rates can be maximumly enhanced on the basis of alleviation of network congestion.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a congestion control method, device and system. Background technique [0002] A data center network is a network composed of servers and switching devices (such as switches), which can provide services such as computing and storage to the outside world. Switching devices in the data center network can implement data transmission between servers by forwarding packets. However, when there are too many packets in the cache queue of a switching device, network congestion may occur. [0003] In related technologies, in order to control network congestion, a congestion threshold is set in each switching device. When the buffer size occupied by the packets in the buffer queue of the switching device exceeds the congestion threshold, the switching device can determine a congestion threshold from the buffer queue. packets, for example, a packet may be randomly selec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801H04L12/825
CPCH04L47/12H04L47/263
Inventor 董峰
Owner HUAWEI TECH CO LTD
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