Network flow control method, device and system

Abstract

The embodiment of the invention discloses a network flow control method and a corresponding system and a device. The network flow control method comprises the steps that: a strategy center resolves flow information calculated by a DPI device according to the content of a received deep packet to calculate the total network flow, and formulates a corresponding flow control strategy according to thetotal network flow and sends the corresponding flow control strategy to the DPI device; the DPI device obtains a corresponding flow threshold value of the next predetermined period of time according to the flow control strategy; the DPI device controls the flow when the flow passing through the DPI device exceeds the flow threshold value. By the technical proposal provided by the embodiment of the invention, the strategy control center can formulate different flow control strategies according to the specific flow information calculated by the DPI device, and therefore selective control over service flow can be carried out, which has no effect on the normal service of users.

Description

A network traffic control method, device and system technical field The invention relates to the technical field of data exchange, in particular to a network flow control method, device and system. Background technique With the expansion of network scale and the deepening of network applications, the flow of data transmission is also increasing. The application of computer resources and information sharing (P2P, PeertoPeer) software achieved through point-to-point direct exchange between systems has also caused network congestion. Operators, enterprise users, and users in education and other industries need to limit the flow of specific applications. Existing traffic control algorithms are all based on CAR (Committed Access Rate) value control. The core router or access device allocates a certain CAR value to each link or user, and discards the traffic when the user traffic exceeds the CAR value. Package handling. During the research and practice of the prior art, the i...

AI Technical Summary

Problems solved by technology

This simple control method based on the CAR value can no longer meet the user's requirements for the quality of service of the network provider

Devices based on deep packet content analysis (DPI, DeepPacketInspection) can control traffic without using the CAR value control method, but the processing capacity of a single DPI device cannot meet the needs of the current network, and cannot make overall judgments

When the DPI device controls the flow, it cannot target the special flow, thus affecting the flow of the user's normal business

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