Compared with the traditional Client/Server model,P2P has many advantages,such as the higher utilization of network resources,the elimination of bottleneck caused by central servers.Low expandability has been hampering the development of P2P system.By analyzing other P2P models,their concordance and improvement,a new designed model based on P2P network model,which is used at campus network was type of proposed.Results certificated that the robustness of the campus network has been strengthened and network c...