毕业论文（设计）集中目录式P2P网络的设计与仿真2.doc

摘要 网络之一，以Napster为典型代表，改变了传统的客户端/服务器(C/S)模式。该网络的主要特点是弱化了中央目录服务器的作用，充分利用了节点的存储能力，网络中每个节点的地位都是对等的。集中目录式模式的诞生，引出了对等网络的新概念。作为第一代网络，集中目录式模式具有广阔的应用空间和重要的研究价值。 本课题通过阅读相关文献，分析国外技术，并，提出了一种。过程，这对于进一步研究集中目录式P2P模式的性能具有一定的参考价值。 关键词：；；ABSTRACT Currently P2P network is a hot research field of international computer networks. With the rapid development of the Internet, users can share networks terminal information distributed around the world. At present Centralized Directory-Based P2P model is one of the three mainstream P2P networks. It uses Napster as a typical representative, which changes the traditional client/server (C/S) mode. The main feature of this network is not only to weaken the role of the central directory server, but also make full use of the storage capacity of the node, and the status of each node in the network is equal. The birth of the Centralized Directory-Based P2P model leads to a new concept of peer to peer network. As the first generation of P2P networks, Centralized Directory-Based P2P model possesses broad application space and is of great research value. By reading relevant literature of P2P technology, This project analyzes domestic and international cutting-edge P2P network technology, combined with its own characteristics and scope of Centralized Directory-Based P2P framework, and proposes a design and simulation scheme for Centralized Directory-Based P2P networks. The new type tool OMNeT++ is taken as a simulation platform suitable to networks simulation, to design and simulate the Centralized Directory-Based P2P network. By experimenting with OMNeT++ simulation, the entire working process of Centralized Directory-Based P2P networks model is achieved on the simulation platform, which has a certain reference value for further research focusing on the performance of directory-based P2P mode. Key words: Peer To Peer networks; Centralized directory model; Simulation; OMNeT++目　　录 第1章 绪论 1 1.1 选题背景及意义 1 1.2 国内外研究现状 2 1.3 课题主要研究内容 4 1.4 论文内容的组织与安排 5 第2章