| As the rapid development of information technology and computer network technology universal access, streaming media business and P2P business is becoming increasingly popular. Streaming media technology is widely used in the press, publishing, securities, entertainment, electronic commerce, distance training, video conferencing, remote education, remote medical care, and other aspects of Internet information services; P2P mainly used in instant communication, teamwork, sharing and search plane, Distributed services and so on. Real Time Streaming Protocol, or RTSP, is one kind tool of controlling the live transmission data on the application layer. RTSP provides a expandable framework which can provide controlling and transmit real-time data on demand, such as audio and video files.P2P protocol, Streaming Media Protocol and the control systematic plan of designing are proposed aim at the problem that P2P and Streaming Media technology occupy a large number of bandwidth in using in this paper.The system is designed under Linux system platform, carrying out the recognition of P2P protocol and Streaming Media protocol with use of the detection technique of the depth packet, carrying out the controlling of P2P protocol and Streaming Media protocol on the basis of the table of user role ,based on the use of Netfilter framework to capture the data packet get in the system. And it can log the information after the protocol recognition and controlling for administrator.Through analysis of the operating principle of the streaming media protocol ,P2P protocol, carried out the modularization design of the recognition and controlling of P2P protocol and Streaming Media protocol, the point study is carrying out the four modules: the capturing of IP Packet, protocol recognition ,protocol controlling, log saving.Currently the first period work of the campus net gateway of controlling project has already been finished and the project is beginning to test. |
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