A network flow control method and device

Abstract

A method and a device for network traffic control comprising the following steps: detecting actual downlink traffic of a network device; calculating an error e between the actual downlink traffic and predetermined downlink traffic; performing a calculation on the error to obtain PID output according to a PID control formula; calculating scaling of upstream traffic according to the calculated PID output and the downlink traffic; and regulating an upstream traffic threshold according to the scaling. The upstream traffic is increased or reduced in accordance with the actual downlink traffic be means of the correlated regulation and dynamic control of the upstream traffic and the downlink traffic of the network device. As such, traffic control is realized in those applications (e.g. UDP traffic such as P2P streaming media) which themselves lack the traffic control mechanism, and it is possible to make the best of network bandwidth as well.

Description

technical field [0001] The invention relates to the field of network control, in particular to a network flow control method and equipment. Background technique [0002] According to statistics, P2P (peer-to-peer, end-to-end transmission) data accounts for 60% of the total Internet traffic, and there is an increasing trend. P2P traffic is difficult to control in enterprise and operator networks, and a large amount of bandwidth resources are occupied, resulting in large delays and slow speeds for other network applications. [0003] The IP data flow on the network is mainly based on the TCP protocol (Transmission Control Protocol) or UDP protocol (User Datagram Protocol, User Datagram Protocol). The TCP protocol itself contains congestion control and is a reliable transmission protocol. Network delay and packet loss are sensitive. Traditional flow control can control TCP traffic well by using buffer delay and packet loss methods. However, with the development of the Interne...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a P2P traffic control system that can automatically adjust P2P traffic in order to solve the defects in the prior art that P2P traffic is difficult to control in enterprise and operator networks, and a large number of bandwidth resources are occupied, resulting in large delay and slow speed of other network applications. , a network traffic control method and system for making full use of bandwidth to ensure bandwidth resources for critical services

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