A transmission control method and system for managing reverse queues

Abstract

The invention discloses a transmission control method and system for managing a reverse queue, and the method comprises the steps: configuring a switch reverse active queue management framework at a switch node; In the data transmission process, the switch identifies the control packets, and stores the control packets into an input queue of a switch reverse active queue management framework in sequence according to a first-in first-out strategy; The switch reverse active queue management framework determines a data transmission state according to an output queue, a threshold value and a congestion degree parameter value of the switch reverse active queue management framework; The method also comprises the following steps: determining different dequeuing rules of a control packet accordingto a data transmission state, setting an explicit congestion notification mark for the control packet at a switch when notifying a sending end to perform congestion control, and receiving the controlpacket with the explicit congestion notification mark by the sending end so as to control the increment of a sending window. The method can improve the congestion during data transmission, improve theprocessing efficiency and improve the network throughput.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a transmission control method and system for managing reverse queues. Background technique [0002] In a computer network, a key problem faced by TCP (Transmission Control Protocol, Transmission Control Protocol) transmission is that congestion causes visible throughput loss at the application layer. The switch congestion caused by the many-to-one business model in the computer network, such as the switch congestion in the data center network. In the congestion, multiple senders send data to the sink node at the same time, causing the output queue of the switch to overflow, resulting in serious packet loss. and TCP retransmission. [0003] Such as figure 1 As shown, it is a schematic diagram of the input and output queues of the switch. The input queue is a buffer queue for receiving packets, such as figure 1 Q in in1 , Q in2 , Q in3 . The output queue is a buffe...

AI Technical Summary

Problems solved by technology

In the computer network, the switch congestion caused by the many-to-one business model leads to serious Incast problems, resulting in a visible throughput loss at the application layer.

However, none of these methods can directly adjust the sending rate at the congested switch

Images