Design And Achieve Of University File Share Based On P2P

University network is the basic facility on the construction of school informationlize. It is also an important platform, with which the teachers and students will teach and research. PCRN based on P2P save its resource in the various peers with P2P semi-distributed architecture. Besides, PCRN improve the traditional semi-distributed architecture and solve the single-point failure problem of traditional semi-distributed architecture; Using hot resources backup mechanism enrich the campus network resources. It also provides an effective solution to the bandwidth occupied in order to reduce the big pressure on our network export. At the same time, it speeds up file transfers between peers.The implementation of PCRN using a popular technology - .NET. Socket technology combination multi-tasking multi-threaded download mechanism, making the system response PCRN fast, efficient search, the implementation process assured. At the same time, it describes and transfers information with XML, each peer maintain a resources list. In the aspect of algorithm, details of the implementation of peer group management.