Research of P2P traffic identification based on traffic characteristics

The P2P traffic plays a important role in promoting the Internet applications. Meanwhile, P2P has also caused network congestion and safety problems because of resource occupation. To ensure the network run properly, it is necessary to have a control over the P2P traffic. However, with the emergence of dynamic port and SSL technology, P2P traffic identification has become even more challenging. This paper briefly introduces the main technologies of P2P traffic identification including the routing ways such as port scanning, deep packet inspection and transport layer identification, and makes a heavy weight on the analysis about the reasons of low efficiency of the technique based upon P2P traffic characteristics. Finally, this method shows high efficiency of P2P traffic identification in the test experiment.