A Traffic Identification Method Based on Deep Packet Inspection

Abstract

A traffic identification method based on deep packet inspection, firstly judge whether the TCP port number in the received message is greater than a first threshold, if greater than the first threshold, use DPI technology to judge, otherwise use TCP connection information to judge. By applying the above technologies, the identification results can be obtained more accurately and quickly in traffic identification, and the identification process is also greatly optimized, which can be more easily implemented in existing equipment.

Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a method for deep packet detection. Background technique

[0002] With the continuous development of new network applications based on the P2P (peer to peer) traffic model in recent years, the consumption of network bandwidth resources has been accelerating, and traditional online services have also been increasingly impacted and affected. P2P itself is a very good technology with broad application prospects, but at the same time P2P is also a very lethal technology. At present, most of the P2P-based applications are bandwidth-depleting download services, which exhaust the originally abundant access, convergence and backbone bandwidth resources, and the network links are often at full load, resulting in the deterioration of network service quality (packet loss Rate, delay and jitter are greatly increased), which greatly affects the development of some voice, video and game...

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