摘要
区分服务和组播是下一代网络需要支持的两种关键技术。但是,在区分服务中支持组播需要解决被忽略的预约子树(NRS)和组成员异构性问题。解决这两个问题需要对传统的组播路由协议进行修改,使其满足区分服务网络的要求。论文改进了域内组播路由协议PIM-DM,解决了该协议在区分服务网络中应用时遇到的NRS和组成员异构性问题。由于PIM-DM和DVMRP都是工作在密集模式下数据驱动的组播路由协议,因此论文的方法同样适用于DVMRP协议。该方法在ns-2模拟器上进行了验证。
DiffServ and multicas t are two key technologies in the future networks.To support multicast in DiffSe rv net-works,NRS and heterogeneous multicast groups problem must be resolved. The paper modifies PIM-DM multicast routing protocol to resolve above problems .As the way in which DVMRP works is similar to PIM-DM,the method proposed in the paper works also well with DVMRP protocol.The method proposed in this pape r is verified using ns-2simulations.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第26期4-6,30,共4页
Computer Engineering and Applications
基金
国家自然科学基金资助项目(编号:90204005)
国家863高技术研究发展计划项目(编号:2003AA121510)
