CloudSIP:基于云平台的可动态伸缩SIP系统  

CloudSIP: a Dynamically Scalable SIP System in the Cloud

作　　者：张伟[1] 雷为民[1] 关云冲[1] 刘少伟[1] 

机构地区：[1]东北大学信息科学与工程学院通信与信息系统研究所,沈阳110004

出　　处：《小型微型计算机系统》2014年第5期1016-1021,共6页Journal of Chinese Computer Systems

摘　　要：针对运营商级系统的可动态伸缩性和高可用性需求,本文提出一种基于云平台的SIP系统CloudSIP.为最大化系统的可伸缩性,CloudSIP采用分层设计,层内和层间组件之间无需同步、功能独立;为提高系统可用性和动态伸缩的实时性,针对实时业务面向会话的特性,Cloud引入注册迁移和会话迁移,在SIP服务器之间透明地迁移用户注册信息和正在进行中的会话信息.最后,本文利用Amazon公共云平台对CloudSIP进行了仿真和测试.According to dynamical scalability and high availability requirements of commercial communication service, in this paper we propose and implement a SIP system in the cloud. To maximize its scalability, CloudSIP is designed hierarchically in such a way that each component does not have to synchronize with other components in the same tier or in other tiers. To improve its availability, CloudSIP introduces register migration and call migration between SIP servers, and so it allows to quickly add or shutdown a compo- nent in each tier by migrating users＇ registration and ongoing session information. An implementation and evaluation of the system is presented on Amazon public cloud platform.

关 键 词：云计算 SIP 可动态伸缩 事务状态 会话状态 会话迁移 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]