A qos flow control method, system, device and storage medium
A flow control and calculation method technology, applied in the field of communication, can solve the problems of not reaching the speed limit value, large speed jitter, frequent changes of the sliding window, etc., to achieve a completely accurate and smooth speed limit, avoid frequent changes, and avoid rate jitter oversized effect
Active Publication Date: 2022-06-21
武汉思普崚技术有限公司
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[0005] In view of this, it is necessary to provide a QOS flow control method, system, device and storage medium to solve the problems in the prior art that the sliding window of TCP flow changes frequently, the speed jitters are large, and the speed limit value cannot be reached
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[0034] The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.
[0035] see figure 1 , the QOS flow control method provided by the embodiment of the present invention includes the following steps:
[0036] S100. Receive a message to be forwarded, and calculate a time token value required to process the message.
[0037] Specifically, the specific principle of the HTB token bucket algorithm in the prior art for QOS flow control is as follows: the switch will add a token to the token bucket when receiving each frame, but there is a token at the bottom of the token bucket. The hole continuously draws out tokens at the speed specified as the average ...
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The present invention relates to a QOS flow control method, system, equipment and storage medium. The method includes: receiving a message to be forwarded, calculating the time token value that needs to be consumed for processing the message; calculating the consumed time in the current cycle The sum of the token and the time token value that needs to be consumed to process the message, and record it as the sum value, compare the sum value with the size of the time token bucket at the current moment in the current cycle; judge whether to forward according to the comparison result message, and update the elapsed time token in the current period when it is judged that the message needs to be forwarded. When the present invention receives a message, it determines whether to forward the message according to the size of the consumed time token and the time token bucket, so that the time token bucket is gradually released as time increases, thereby avoiding TCP The sliding window of traffic changes frequently, avoiding excessive rate jitter and failing to reach the speed limit value, and achieving a completely accurate and smooth speed limit effect.
Description
technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a QOS flow control method, system, device and storage medium. Background technique [0002] At present, the vast majority of QoS (Quality of Service) traffic rate limiting is implemented based on hardware, but some hardware platforms such as Cavium hardware do not support QoS traffic rate limiting, and need to implement QoS traffic rate limiting through software. [0003] The current mainstream solution for QoS traffic rate limiting implemented by software is to use the HTB token bucket algorithm, which directly discards packets according to the number of tokens before packets are queued. The implementation of the HTB token bucket algorithm's QOS rate limit for each IP is to update the token bucket every second. Compared with the tcp congestion control mechanism, the update frequency is too slow. The sliding window opens rapidly, and the amount of data in t...
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IPC IPC(8): H04L47/215H04L47/24
CPCH04L47/215H04L47/24
Inventor 吴佳袁慧
Owner 武汉思普崚技术有限公司