浅析CSCF集群的实现方法  

Discussion on Implementation of CSCF Cluster

作　　者：张毅[1] 

机构地区：[1]中国电子科技集团公司第三十研究所,四川成都610041

出　　处：《通信技术》2013年第5期56-58,共3页Communications Technology

摘　　要：呼叫会话控制功能(CSCF,Call Session Control Function)是IP多媒体子系统(IMS,IP Multimedia Subsystem)中最重要的呼叫控制网元,主要负责对IMS网络中的各种会话进行控制管理,所以对其可靠性、可伸缩性、运行高效性等有很高的要求,利用集群技术将一个个独立的CSCF服务器组成CSCF集群则可以满足这些要求。根据CSCF和集群技术的原理提出了两种CSCF集群的实现方法,并对CSCF集群中的负载均衡策略、会话初始协议(SIP,Session Initiation Protocol)流程和互备原理进行了介绍,可供在进行CSCF集群的规划设计和实施建设时参考。CSCF（Call Session Control Function）, as the most important call control entity in IMS（IP Multimedia Subsystem） network, is responsible for control and management of various sessions in IMS network, and thus must be of the high reliability, high scalability, high operating efficiency and other features. CSCF server, with the cluster technology, builds up CSCF cluster and thus meets these requirements. According to the principle of CSCF and cluster technology, two implementations of CSCF cluster are proposed and the load balance strategy of CSCF cluster, the SIP （session initiation protocol） process and the principle of mutual-backup are also described This could serve as a reference for the design and implementation of CSCF cluster.

关 键 词：CSCF 集群 SIP 

分 类 号：TN915.5[电子电信—通信与信息系统]