一种基于IP多播的对等点定位方法

A Peer Discovery Method Based on IP Multicast

计算机对等联网(peer-to-peernetwork,P2P)技术是目前新一代网络技术研究的活跃领域,而对等点定位问题是P2P网络通信中一个关键环节。该文分析了几种目前广泛使用的对等点定位方法的优势和不足,提出了基于IP多播技术的对等点定位方法,并运用JXTA技术在JavaTM2平台上予以实现。实验证明,新定位方法具有更大的适应性和灵活性,并有效减少了网络带宽占用率。

Peer-to-peer network(P2P)technology is currently an emerging technology in the network research domain.And peer discovery is a key problem in the P2P network communication.This paper presents an analysis of several popularly used peer discovery methods and puts forward a new peer discovery method based on IP multicast technology.Using JXTA technology,the system framework is realized on Java TM 2platform.Experiment results manifest the new method has much more flexibility and agility,and reduces the network bandwidth consuming.