基于多协议标签交换的IP组播技术  

IP multicast techniques based on MPLS domain

作　　者：李小勇[1] 张卫[2] 

机构地区：[1]天水师范学院计算机系,甘肃天水741000 [2]华东师范大学计算机系,上海200062

出　　处：《计算机应用》2005年第11期2472-2474,2479,共4页journal of Computer Applications

摘　　要：多协议标签交换(MPLS)和组播技术的结合可以获得MPLS的高速率、QoS、流量工程、VPN和组播的带宽节省两方面的益处,MPLS和组播是两种互补的技术,这对于带QoS参数的实时的多媒体应用是必须和紧迫的。文章综述了MPLS组播技术在实现机制、组播树的构建等方面的基本原理和研究进展,分析了存在的问题和发展方向。Merging MPLS and multicast techniques can acquire two advantages： saving bandwidth of multicast and supporting high-speed, QoS, traffic engineering and VPN in MPLS. Multicast and MPLS are two complementary techniques. MPLS multicast is pre-requisite and urgent for multimedia real-time steaming traffic with QoS parameters（ such as bandwidth, delay, etc）. Basic principles and research results of implementing mechanism, multicasting tree foundation in MPLS multicast were summarized. The existed problems and future research prospects were discussed.

关 键 词：MPLS组播 可扩展性 标签聚集算法 边界路由器组播 MPLS组播树 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]