Explicit congestion notification marking method, switch, system and storage medium

By employing a PID-controlled ECN tagging method in the switch to adjust the packet tagging probability, the network congestion problem in the many-to-one communication mode was solved, achieving stability of the switch queue and improvement of network throughput.

CN121418366APending Publication Date: 2026-01-27ZTE CORP
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Patent Information

Application Number
CN202411007916.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-25
Publication Date
2026-01-27

AI Technical Summary

Technical Problem

In remote direct memory access networks, many-to-one communication mode is prone to network congestion. Existing linear ECN marking methods cannot effectively control switch queues, resulting in low network bandwidth utilization, long packet queuing time, and unstable flow control speed adjustment.

Method used

The ECN marking method based on PID control is adopted. By adjusting the marking probability of packets through proportional-integral-derivative parameters, the switch queue is kept stable at a certain queue depth, reducing invalid and excessive ECN marking, and improving the accuracy and timeliness of flow control marking.

Benefits of technology

It effectively avoids network congestion, increases network throughput, ensures rapid convergence and stability of switch queues, and improves network performance.

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Abstract

The embodiment of the invention provides an explicit congestion notification marking method, a switch, a system and a storage medium, and the method comprises the steps: obtaining the exit queue length of the switch, determining the marking probability of a message according to a preset PID parameter, a preset exit queue reference length and the exit queue length, and performing explicit congestion notification ECN marking on the message according to the marking probability. According to the embodiment of the invention, the marking probability of the message is determined through the PID parameter, and ECN marking is carried out according to the marking probability, so that the message queue of the switch can be stabilized at a certain queue depth, invalid and excessive ECN marking is reduced, blind excessive speed increase or speed reduction is avoided, and the accuracy and timeliness of flow control marking are improved, thereby improving the network throughput and improving the flow control marking efficiency. The problem of network congestion easily caused by a many-to-one communication mode in related technologies is solved.
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