Transmission control method for DCN (Data Center Network) based on multilevel congestion feedback
A transmission control and transmission path technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as insufficient sensitivity to delay constraints, and achieve the effect of improving network throughput and reducing completion time.
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[0042] see figure 1 , figure 1 It is a flowchart of the present invention: a method for transmission control based on multi-level congestion feedback in DCN, the process is as follows:
[0043] Initialization; set the size of the initial sending window cwnd to 1, set the first-level queue marking threshold Threshold1 to 20, set the second-level queue marking threshold Threshold2 to 65, set both the congestion flag bits ECT and CE to 0, and the slow start phase Flag ST is set to 0;
[0044] After the sender receives all the acknowledgment packets ACK in the current sending window, it calculates the number of the first-level congestion flag ECT and the second-level congestion flag CE set to 1 in all the acknowledgment packets ACK. Secondary congestion levels α and β;
[0045] α=m / cwnd
[0046] β=n / cwnd
[0047] Among them, m and n are the number of the first-level congestion flag ECT and the second-level congestion CE set to 1 in all acknowledgment packets ACK in the curren...
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