P2P Protocol Traffic Detection On File Transportation

Peer to Peer network is a new technology that can change the application module of internet. P2P technology Provides the amazing convenience to users, and the same time, it makes use of the potential resources of Internet effectively, changes the web based Internet into a free-interact network. On the other hand, P2P traffic has already been the largest traffic in the internet because of large numbers of users. The huge traffic gives ISPs much pressure, and they want to find away to identify and manage the traffic of P2P applications through the traffic of internet.This thesis presents traffic detection features of many popular P2P file transfer networks, implements an P2P traffic detection system based on file transfer, and puts forward improvement Search resources strategy for a file transfer networks that can improve the efficiency of the system. The testing report proves that the system provides a solution of identifying P2P traffic accurately.There are five chapters in the paper, In the begin of this paper provides a brief introduction about the research background and the main research tasks. Chapter 1 presentation the development of the P2P file transfer system in datails, including an overview and the trends of development, Chapter 2 mainly covers traffic recognition technology of P2P networks including the basic characteristics of P2P traffic, traffic recognition technology and management strategy. In chapter 3, resource search scheme is improve and analysis, and evaluate of the improving algorithm. Chapter 4 summarizes the characters of application layer and transport layer of P2P networks through experiments and research on the P2P applications. In chapter 5, the needs analysis and implementation of a P2P traffic detection system based on file transfer, Finally, simulation of the system and analysis of test results. The conclusion is the summarization of the research work and its prospect in future.