Research and implementation of P2P identification system based on compound characteristics

A surge of applications of p2p technology brings in problems such as the bandwidth shortage, internet piracy, and network security and so on. Accurate Identification of P2P traffic grows more important in effective network management. In this paper, a new P2P identification method based on compound characteristics is proposed. The accuracy of traditional identification methods will vary with different P2P protocols. Against the defect of the P2P identification, three statistical characteristics are adopted through analyzing the various characteristics of different flows. With this method, the payload information has not to be checked, and Identification results will not be affected by data encryption. Finally, we construct a p2p identification system using the compound characteristics. Performance of the system proved that the proposed method can not only identify much more P2P traffics, but also have higher recognition rate, lower false positives and failure rate.