P2P Key Techonology For Streaming Media Services In High Performance Broadband Information Network

The rapid development of the Internet to be the social basis of information carrier, withthe emergence of streaming media technology, increasing ability of the storage system andnetwork of transmission bandwidth increase in Inter net on various flow media applicationssuch as video on demand, network television, video conference, etc already gradually realize.A single CDN system, user is concerned, get service Response time shortens greatly, servicequality improved, but the use of the structure is still traditional C/S mode, there is stillperformance bottlenecks, lack of expansion ability, the single point failure, can’t satisfy largescale application needs, many users of concurrent, will be the core of the bandwidth of thenetwork and equipment bring a lot of pressure.P2P and the operational can be mixed CDN management of streaming media contentdistribution model P2P+CDN. P2P+CDN inherited P2P system and the advantages of CDNsystem, through the system model of the reasonable structure, on the one hand, make full useof the huge commercial CDN network hardware and software investment, continue systemstability advantages of controllable; On the other hand, through the reasonable using P2Ptechnology, improve the CDN network center to the brink of a node cache content distributionnode of efficiency, and at the same time through the coordination of edge cache node, to makefull use of the end user uplink bandwidths, storage and computing resources, investment inless, improve the system with ability and to achieve good of mass flow media QoS guaranteebusiness support.This article through studies high performance information network technology standardof broadband, and put forward the south China university of technology education stationsnets3Tnet renovation plan; The key technology of p2p, and the agreement and algorithm ofcover network in villages, the Combined with science and technology plan major projects ofguangdong province "3Tnet hd interactive business operation support platform constructionand demonstration","video monitoring hot media large-scale agilization transmissiontechnology" introduces the education system of local nets banacast application layer p2ptechnology, presented banacast system p2p solutions, focusing on banacast system structureanalysis; The last three Tnet education according to local banacast system with netsdemonstration and business test.