Research And Application Of Network Clusters Download Mode

From Napster to Gnutella and then to BitTorrent, up until now, the development of P2P network has already developed into the third generation within short a few years. BitTorrent is abbreviated as BT, translated as "bits torrent "in Chinese. BT, downloading tool as a kind of innovation, receives the first and the second generations of P2P technological advantages, innovatively adopts the way of cluster downloading, simplely effective realizes the scattering of the downloading pressure, so accomplishs "the more people that download, the faster speed is"!This paper collects from BT principle of cluster downloading research of way start with, firstly studies early two generations of P2P network file-sharing frameworks, at the same time compares with studying the cluster downloading of the peer eDonkey too. Secondly summarizes BT's WebJJnk model, and exhaustively to explain the superiority anddeficiency of the model. Finally proposes new P2P network cluster model-PsWPs.Thenew PsWPs model is of high efficiency, fine stability, expansibility and but management characteristics, etc. It utilizes fully cluster characteristic and combines with web server, so as to be melt into present network at all inclusive, accomplishs the resource-sharing service effectively. Additonally, The paper in detail designs concretly realization of the model, comprehensively using Java, XML and ASP technology, provided relevantly accomplishment finally.