Design And Implementation Of P2P Streaming Inspection Platform

With the Internet and broadband technology developing, the application of P2P is quickly increasing. However, the problem that resources of P2P flow occupy the bandwidth is increasingly serious. Accord to statistics: more than 90 percent of the network bandwidth is occupied by P2P packets at night. P2P business needs to be effective regulated. The paper is one part of P2P business regulatory framework, and especially against P2P streaming media business regulatory issues are studied.On the basis of analyze and summarize the current typical P2P streaming media, this paper presents a P2P streaming media framework of protocol analysis, and to achieve a scalable P2P streaming media inspection platform. Specific tasks as follows:1. Analyzing three typical P2P streaming media client's (PPlive, PPstream, QQlive) protocols, get their protocol characteristics and streaming characteristics, use of the black box analysis method to conclude their group broadcast construction.2. Presenting a P2P streaming media framework of protocol analysis. The framework analyze P2P streaming media characteristics in five aspects of the update information, channel access, peer nodes access, signaling interaction and data transmission3. Achieving a scalable P2P Streaming Media Inspection Platform, the inspection platform is characterized by: using the Bloom filter algorithm improvement, taking into account the P2P streaming media streaming features, further improving the identification efficiency; using web database to store control strategy features, easy to amend and expansion; basing on Linux Netfilter, convenient for other platform transplantation.In the LAN environments, the inspection platform can effective identify and blockade three P2P streaming media data streaming without affecting other business, prevent users watching all the programs, and achieve good practical results.