P2P流媒体系统相对于传统客户端/服务器模式流媒体系统由于具有可扩展性高、鲁棒性强、易于实现

负载均衡等特点而得到广泛应用。另一方面,通常需要对P2P流媒体系统性能指标进行评估以对系统设计

进行改进、优化设计参数。但是由于P2P系统的开放性和分布性,系统中没有统一中央控制实体,大量节点

动态加入离开系统会引起网络逻辑拓扑动态变化-P2P streaming media system as opposed to the traditional client/server mode because of streaming media system with high scalability, robustness, ease of implementation features such as load balancing has been widely applied. On the other hand, is usually required for P2P streaming media system to assess the performance indicators to the system design to improve and optimize the design parameters. However, P2P systems because of the openness and distribution, there is no uniform system of central control entity, a large number of nodes leaving the system will dynamically add the logical network topology caused by dynamic changes