In this paper, for the shortage of network quality of service, multicast support and other deficiencies in VoD systems based on IPv4 network, we built a P2P VoD system architecture based on IPv6 network and data transfer mechanisms were in-depth studied. This paper describes the basic idea of the system and system architecture. According to the characteristics of P2P and multicast, we designed a collaboration data transmission of P2P and IP multicast and did some experiments and analysis on the system. Experimental results show that the system can effectively solve the P2P bandwidth problem and the unreliable of multicast data, and has high efficiency and practical value.
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