一种基于分支节点的源特定组播路由算法  

A Branching Point Based SSM Routing Algorithm

作　　者：王新生[1] 王丽芹[1] 孙链[1] 

机构地区：[1]燕山大学信息科学与工程学院,秦皇岛066004

出　　处：《计算机研究与发展》2008年第z1期405-408,共4页Journal of Computer Research and Development

摘　　要：状态可伸缩性问题一直是阻碍IP组播服务大规模实施的重要障碍.将利用分支节点方法减少组播转发状态的思想引入源特定组播SSM,提出了一种基于分支节点的源特定组播简化路由算法BPSSM.算法在有效减少组播转发状态的基础上,通过增加数据类型检验器,消除了单播数据包的多余转发查找.Scalability of multicast forwarding state is a major drawback facing the development of multicast service. In this paper, the idea of branching point based multicast state elimination into source-specific multicast model, and a BP-based SSM routing algorithm—BPSSM is proposed. Multicast forwarding state can be dramatically reduced when using BPSSM, and with the application of a protocol parser, the duplicate lookups of unicast data packets can be eliminated thoroughly.

关 键 词：源特定组播 状态伸缩性 分支节点状态消除 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]