摘要
会话初始协议(SIP)是VOIP领域中重要的信令连接协议之一,但是现有的SIP网络存在手工配置、维护困难以及扩展性较差等问题。随着P2P技术的日趋成熟,将SIP和P2P结合已经成为一种趋势。JXTA是一个开放的对等平台,提供了构建P2P网络所需的基本应用服务。文中描述了P2PSIP系统的基本原理,在对Peer与Rendezvous Peer深入分析的基础上提出了JXTA网络模型,并在此模型上实现了原型系统,该系统不需要维护中央服务器,就能够维持正常的SIP通信。同时分析了系统框架结构和呼叫流程,最后给出了测试结果。
The session initiation protocol（SIP） is one of the most important protocols in the area of VOIP.However,the existing SIP systems are typically needed to be configured and maintained by hand,with limited scalability.With the maturation of peer-to-peer（P2P） technology,there is a trend to combine P2P concepts with SIP.JXTA is an open P2P platform,which provides infrastructure services for building P2P applications.It depicts basic principles of P2PSIP system,presents a JXTA network model by analyzing Peer and Rendezvous Peer,and implements prototype system.This system maintains the SIP traffic without having to maintain central entities,and meanwhile enjoys compatibility with standard SIP.It also analyzes the call process and framework structure,and verifies function of the P2PSIP prototype system by testing.
出处
《计算机技术与发展》
2011年第7期175-178,182,共5页
Computer Technology and Development
基金
江苏省高校自然科学研究计划项目(05KJD520146)
