中文摘要：

在深入研究现有的P2P网络拓扑结构的基础上,构建了一个新的P2P流媒体点播系统模型,该系统模型包含跟踪服务器、资源服务器、超级节点和普通节点四个部分。系统能快速定位到资源,减少路由查询次数,增加系统的扩展性、鲁棒性和数据吞吐量,能够很好地满足点播服务的要求。

英文摘要：

In- depth study of existing P2 P network topology,the paper constructs a new P2 P streaming media on- demand system model,which includes four parts： tracking server,resource servers,super nodes and ordinary nodes. It can quickly locate the resources,reduce routing queries,increase system scalability,robustness and data throughput,therefore can well meet the requirements of on- demand services.