Congestion control method and network device

A technology of network equipment and congestion control, applied in the network field, can solve the problems of slow rate change and low congestion control efficiency, and achieve good congestion control and reduce network packet loss

Active Publication Date: 2018-12-21
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above scheme, the sender will gradually adjust the sending rate of the data packet after learning the congestion state of the network. The rate change is relatively slow, which may cause a certain delay in the transmission of the data packet, resulting in the efficiency of congestion control. not tall

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  • Congestion control method and network device

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Embodiment Construction

[0081] figure 1 It is a schematic diagram of a possible application scenario of the embodiment of this application.

[0082] Such as figure 1 As shown, the sending end 1, the sending end 2, and the sending end 3 can send data streams to the receiving end 1 and the receiving end 2 through the switch 1 and the switch 2. Both the receiving end 1 and the receiving end 2 can receive the data flow sent by the sending end 1 to the sending end 3 through the switch 1 and the switch 2 (the switch 1 and the switch 2 forward the data flow sent by the sending end 1 to the sending end 3 to the receiving end 1 and receiving end 2). It should be understood that figure 1 It is only a schematic diagram of a possible application scenario of the embodiment of the present application, and the embodiment of the present application can also be applied to other figure 1 in similar scenarios.

[0083] Taking sender 1 and receiver 1 as an example, the data flow sent by sender 1 to receiver 1 may c...

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Abstract

The invention provides a congestion control method and a network device. The method comprises the following steps: a first network device receives a first message sent by a second network device; thefirst message carries an active flow number which is determined by the second network device according to the data flow to which the data packets from the first network device belong. According to thenumber of active streams and the nominal reception bandwidth of the second network device, determining packet sending control information for sending a data stream to a second network device, whereinthe packet sending control information indicates that an actual reception bandwidth of the second network device reaches a nominal reception bandwidth when the first network device sends a data stream to the second network device according to the packet sending control information. The first network device sends a data stream to the second network device according to the packet sending control information. The present application can better control congestion, thereby reducing network packet loss.

Description

technical field [0001] The present application relates to the field of network technology, and more specifically, to a congestion control method and network equipment. Background technique [0002] With the rise of new applications such as artificial intelligence and enterprise storage, the demand for low-latency features in data center networks is becoming more and more urgent. How to control the congestion of the data center network to ensure the low latency of the data center network is a very important issue. [0003] The traditional congestion control method mainly feeds back the network congestion information from the receiving end to the sending end, and the sending end adjusts the rate of sending data according to the congestion information after learning the congestion information of the network. For example, when the network is congested, the sending end will reduce the sending rate of data packets, and when the network is not congested, the sending end will gradu...

Claims

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Application Information

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IPC IPC(8): H04L12/801H04L47/27
CPCH04L47/10H04L47/12H04L47/25H04L47/27H04L47/33H04L47/115H04L47/29
Inventor 刘孟竹张亚丽刘世兴
Owner HUAWEI TECH CO LTD
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