Traffic identification system and traffic identification method

Abstract

A traffic identification system is applied to a data conversion device, and comprises a bidirectional traffic detection module used for detecting whether a packet of a type possesses the bidirectional traffic when the data conversion device receives the packet of the type; a data size monitoring module used for monitoring the data size flowing into the data conversion device from the packet of the type within a predetermined time via a network and the data size flowing out from the data conversion device via the network, when the above packet of the type possesses the bidirectional traffic; a traffic identification module used for judging whether the traffic of the above packet of the type is VoIP traffic according to the data sizes; and a packet processing module used for giving a preset priority to the packet of the type to preferentially process the packet of the type when the traffic of the above packet of the type is VoIP traffic. The present invention also provides a traffic identification method. According to the traffic identification system and the traffic identification method of the present invention, the VoIP traffic can be identified effectively, and the quality of the VoIP voice communication is improved.

Description

technical field [0001] The invention relates to a flow identification system and method. Background technique [0002] VoIP (Voice over Internet Protocol) network voice call has always been one of the most important applications of network communication equipment. In order to ensure the smoothness of voice communication, it is necessary to give VoIP traffic (VoIP Traffic) a higher priority than other network traffic in the network on data conversion equipment (such as routers, gateways, etc.). However, to give higher priority to VoIP traffic, it is necessary to accurately identify VoIP traffic from the vast data traffic. Some traditional VoIP traffic identification methods obtain VoIP traffic information by monitoring VoIP session control (Session Control) packets, for example, by monitoring SIP (Session Initiation Protocol) INVITE (invite) packets. Or determine whether it is VoIP traffic by the size of the received packet. However, the above method has the problem of how...

AI Technical Summary

Problems solved by technology

However, the above method has the problem of how to effectively monitor the VoIP Session Control packets, which will increase the burden on data conversion equipment such as routers

At the same time, there is also non-VoIP traffic interference, and it is impossible to accurately determine whether it is VoIP traffic

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