ECN mechanism-based congestion control method in the mixed network
A technology of congestion control and hybrid network, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc. It can solve problems such as difficulties in correspondence, increased system overhead and implementation difficulties, and packet loss events that do not have real-time performance. Achieve the effect of maintaining friendliness, high throughput and link utilization
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[0028] Referring to Fig. 1, Fig. 1 is a flowchart of the present invention. The process is as follows: After TCP starts, it first enters slow start, and when the congestion window exceeds the slow start threshold, it enters the congestion avoidance phase. In the congestion avoidance phase, if a timeout occurs, slow start is restarted; if a new ACK is received, congestion avoidance is performed according to normal TCP; but if repeated ACKs are received, congestion prediction is required. The congestion prediction method is as follows: intercept the latest ECN feedback information of the router, and calculate the congestion probability according to the distribution of the congestion marks in it, the sender performs congestion prediction according to the change trend of the congestion probability, and adjusts the congestion control mechanism according to the prediction result. If the predicted result is congestion, the sender will adjust the rate and retransmit to enter fast reco...
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