Abstract:

In recent years the rise of the P2P streaming media network TV has become a major Internet application，analysis and research P2P streaming media system have a great guiding significance to identify its traffic and future development of similar systems.In this paper，we select PPStream and QQLive these two commonly used softwares and do protocol analysis by crawling their datas，we mainly concern about how the system obtains nodes list，how resources are exchanged and how datas are transmitted；then summarize a set of protocol analysis framework of P2P streaming media and propose a traffic identification method based on protocol analysis.

Key words: peer-to-peer, network TV, protocol analysis, traffic identification