TCP (transmission control protocol) congestion control method based on network effective bandwidth and ECN (Explicit Congestion Notification) mechanism
An effective bandwidth and congestion control technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of inability to apply data center network and congestion control, and achieve the effect of avoiding the halving of the sending window
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] The purpose of the present invention is to propose a TCP congestion control method based on network effective bandwidth and ECN mechanism, which can be used in wired data center network and wireless network at the same time. This method performs ECN marking on the switch, and the receiver determines whether the ACK it sends should set the ECN-echo bit according to the state of the ECN marking bit in the received data packet. The sender calculates the effective bandwidth of the network and dynamically adjusts the sending window according to the state of the ECN-echo bit in the received ACK. The present invention comprehensively considers the characteristics of the data center network and the wireless network, can alleviate the TCP Incast phenomenon of the wired data center network, and avoid network performance degradation caused by wirel...
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