Based On Dpi And Dfi's P2p Traffic Real-time Monitoring System Development

In recent years, with the rapid development of Internet based on TCP/IP technology,and the Internet provide most facilitate in people's production and living.The Internet has become an integral part of people's daily life, business operations and management.With the development of internet, applications based on Internet became more and more,and all kinds of trouble became too.P2P is such a satisfactory applications for many customers of the Intenet.InstantMessagings and voip applications based on P2P provide most facilitate for people to converse with each other.And files Shareing applications based on P2P provide most facilitate for people to get or share files.The development of P2P applications has led to a lot of problems,such as accused of copyright laws,spreaded Trojan horses and virus,occupies most Bandwidth resources,caused the environmental of network be vorsened.Nowadays,the problems caused by P2P has became a key issues of the problems of network.How to solve these problems caused by P2P and control the P2P traffic effectively,has became a high preferential issues for many Network operators and corporation.The key to controlling the P2P traffic effectively is that the P2P flow of real-time network can be detected out accurately. This paper places emphasis on how to detect the P2P traffic effectively. The main content of this article contains the following several aspects:1. This paper analyzed the character of P2P network, and elaborate its advantages and disadvantages.2. This paper the method of current flow identification is outlined.3. This paper described a scheme of traffic identification based on DPI, then design and implement a Network Flow Inspection System. The test results demonstrate that the performance of system is reliable and the recognition rate reaches as high as above 95%. The system can identify over a hundred kinds of P2P applications with good stability and availability.