对等网络的仿真研究

Simulation Research of P2P Network

P2P网络和P2P相关技术一直是计算机网络研究的一大热点。P2P网络具有大规模、高动态性的特点,这使得在真实环境中实际运行、测试一个它需要付出巨大的努力和昂贵的开销。而P2P模拟器具有的优势能为P2P网络研究带来很大的方便,研究者们只需要将精力集中于想要关注的性能,而不必花费大量的时间和精力去编写实验工具。文中深入研究了PeerSim模拟平台上模拟P2P环境的构建方法,并在其上实现了一个简单的负载平衡算法。最后,通过实验来说明PeerSim模拟器的使用方法,展示了PeerSim组件化的构造思想和灵活的配置机制。

P2P （ Peer-to-Peerl network and P2P technology have always been a hotspot in computer network research. The characteris tics of large-scale and high dynamicity of P2P networks make that running and testing a P2P network in an actual network environment requires huge efforts and expense cost. However,the advantages of P2P simulators provide much convenience for P2P network research. Researchers can focus only on those properties they want to know,rather than spending a lot of time and energy in developing experiment tools. It carries out a deep research of the construction methods of P2P network environment on the PeerSim framework and successfully implements a simple load-balancing algorithm on PeerSim. Finally ,the experiments are given out to demonstrate the using methods,the component-based structure and the flexible configuration mechanism of PeerSim simulator.