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SIP保留事务状态代理中基于UDP协议的状态共享机制 被引量:1

A UDP-Based State-Sharing Mechanism of SIP Transaction Stateful Proxy
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摘要 已有的IM S(IP multim edia subsystem)容错系统仅仅实现了保留呼叫状态代理下的状态共享机制.提出并实现了保留事务状态代理中基于UDP(U serDatagram Protocol)协议的状态共享机制.在大话务量测试的基础上,给出了可靠性的测量值曲线图.通过数学分析和理论推导,提出并证明了超时参数Tout与可靠性R之间的关系公式.实验表明,理论分析的结果能够反映出系统的真实性能,推导出的Tout断裂点值与实际值是一致的. Current IMS ( IP multimedia subsystem) fault-tolerant systems only implemented state-sharing mechanism of SIP call stateful proxy. We proposed and implemented a UDP-based state-sharing mechanism of SIP transaction stateful proxy. Based on heavy stress testing, experimental reliability figure is shown. By mathematical analysis and derivation, we proved the proposed relationship equation of Tout and reliability R. Experiments showed that the results of the theoretical analysis can reflect the real performance of the system, and the theoretical and practical Tout breakpoint value is consistent.
出处 《电子学报》 EI CAS CSCD 北大核心 2006年第7期1311-1315,共5页 Acta Electronica Sinica
基金 高等学校博士学科点专项科研基金(No.20030013006) 国家移动通信产品研究开发专项基金 电子信息产业发展基金重点项目 电子信息产业发展基金项目 国家高技术产业化信息化装备专项项目
关键词 IP多媒体子系统 下一代网络 状态共享 容错 会话初始协议 可靠性 IP multimedia subsystem next generation network state-sharing fault-tolerance session initiation protocol reliability
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