P2P计算技术的研究与应用

The Research and Application of Peer-to-Peer Computing Technology

计算机对等联网(Peer-to-Peer)是目前流行于国际网络技术研究领域的一种新兴的网络模型。作为真正的分布式计算技术,P2P技术将对Internet的发展产生重要的影响。与传统的C/S模型相比,它在网络资源利用率、消除服务器瓶颈等多方面有明显的优势。因此,P2P蕴涵着巨大的商业和技术潜在价值。文章首先分析了P2P的特点和优势,然后详细讨论了它的研究与应用现状,以及P2P的节点状态、搜索策略、信息的定位和安全问题,并总结了P2P网络的关键技术和面临的挑战。

Peer-to-Peer networking is a new network model that has been sweeping through the computing industry over the past year or so.Being supported by distributed computing technology,Peer-to-Peer(P2P) may be one of the most important technology that influences the Internet in the future.Compared with the traditional Client/Server model,P2P has many advantages,such as the higher utilization of network resources,the elimination of bottleneck caused by central servers.So P2P has great potential value on commerce and technology.This paper first analyzes the characteristics and advantages of P2P,and then introduces the state of the domain on research and application,node state of P2P,searching policy,information location ,security,key technology and challenges in detail.