一个P2P网络仿真模型  

Simulation Model for P2P Networks

作　　者：杨德国[1] 王慧[1] 王翠荣[1] 高远[1] 

机构地区：[1]东北大学信息科学与工程学院

出　　处：《计算机科学》2008年第8期26-28,41,共4页Computer Science

基　　金：国家自然科学基金(60273078);河北省科技厅博士基金项目(55470130-3)

摘　　要：现有的P2P网络仿真器都有其各自的弊端,不能够对现实中的P2P的一些实际应用进行仿真。把P2P网络中的各个元素按实际情况模型化,设计一个能够用于对现有P2P应用进行仿真测试的P2P仿真器是十分必要的。本文设计了一个尽可能真实反映P2P实际运行环境的仿真模型,该仿真模型用于仿真现有的很多P2P应用。该模型根据现实P2P资源共享系统中用户的行为的基本特点设计了Peer的各种属性,包容了现有常见的P2P资源共享应用中peers选择和pieces选择策略,并为进一步设计P2P底层覆盖网络拓扑结构提供了接口。该仿真器初步运行结果表明,它能够反映现实P2P应用中的真实情况。The existing P2P simulators have its disadvantages,and are not fit for many practical P2P applications. It is necessary to model each of the elements in the P2P networks and design a P2P simulator for the actual applications. In this paper,a simulation model which closely reflects the real P2P networks is designed. Based on the behavior of user in the P2P networks applications, the model has designed many attributes for every peer; some current strategies of peers selection and pieces selection are included in the model; the model has devised the interface for the underlying overlay network topology architecture. The running result of the primary simulator shows that the simulation model can match the case of the real P2P networks.

关 键 词：P2P 网络仿真 资源共享 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP391.9[自动化与计算机技术—计算机科学与技术]