A data center network transmission control method, system and readable storage medium based on anti-ecn mark

A data center network and transmission control technology, applied in transmission systems, electrical components, etc., can solve problems such as low link utilization, achieve low delay, high link utilization, and reduce completion time

Active Publication Date: 2022-04-12
CENT SOUTH UNIV +1
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  • Claims
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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of low link utilization based on the transmission control method driven by the receiving end in the data center network. In the transmission control method provided by the present invention, the ECN mark is used to indicate that the link has spare bandwidth instead of default congestion mark

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  • A data center network transmission control method, system and readable storage medium based on anti-ecn mark
  • A data center network transmission control method, system and readable storage medium based on anti-ecn mark
  • A data center network transmission control method, system and readable storage medium based on anti-ecn mark

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with examples. see figure 1 , is a flow chart of the method provided by the embodiment of the present invention, which describes the processing process of the three parts involved in the present invention: the sending end, the switch, and the receiving end. The process is as follows:

[0063] First determine the type of the current operation subject.

[0064] If it is the sender:

[0065] For each newly arrived stream, first send a delay-bandwidth product (BDP) number of data packets, then receive the drive packet, judge whether the ECN flag bit of the drive packet is 1, and if so, send two data packets. Otherwise, send a data packet.

[0066] It should be noted that, in other feasible embodiments, the numerical encoding of the ECN flag can be different. If the ECN flag is 1, the number of data packets to be sent can also be higher than 2, which is not the case in the present invention. Make speci...

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Abstract

The invention discloses a data center network transmission control method system and a readable storage medium based on an anti-ECN mark. The method includes: starting a new flow, sending a data packet to a receiving end through a switch at a sending end; Whether there is free bandwidth, and the final ECN mark of the current data packet is CE final Perform numerical encoding; the receiving end receives the data packet and generates a drive packet, and then marks the ECN of the current data packet as CE final Copy it to the driver packet and send it to the sender; the sender judges the numerical code of the ECN flag bit of the driver packet, and if the corresponding link has free bandwidth, then send at least two data packets; otherwise, send one data packet. The invention timely feeds back the information of low link utilization rate to the sending end, and the sending end can rapidly utilize idle bandwidth by appropriately increasing the number of sending packets, thereby improving the link utilization rate.

Description

technical field [0001] The invention belongs to the technical field of data center network transmission, and in particular relates to a data center network transmission control method based on an anti-ECN mark. Background technique [0002] Modern data centers host a wide variety of applications such as web search, social networking, deep learning, and data mining. As these data center applications have increasingly stringent requirements for low latency and high throughput, many transmission protocols based on feedback congestion control algorithms at the sender have been proposed to optimize the flow completion time. For example, congestion feedback based on ECN marks is when If the queue length exceeds the set threshold, the data packet will be marked with ECN congestion. Since these transport protocols react only after congestion occurs, it inevitably leads to queue accumulation, degrading the performance of delay-sensitive applications. [0003] In recent years, in or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/283H04L47/263
CPCH04L47/25H04L47/263H04L47/12
Inventor 黄家玮胡晋彬李钊毅王诗琪王建新
Owner CENT SOUTH UNIV
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