基于动态组播代理的移动组播协议  

A Mobile Multicast Protocol Based on Dynamic Multicast Agent

作　　者：刘玉兰[1] 沈波[1] 刘文红[1] 张宏科[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《北京交通大学学报》2005年第5期1-4,共4页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金资助项目(60402035);华为技术有限公司基金资助项目(YBDC2004013)

摘　　要：IETF移动IP工作组在移动IP协议中建议了支持主机移动的两种基本的组播机制:双向隧道MIP-BT和远程加入MIP-RS,它们具有互补的优缺点.文中汲取了IETF两种基本方法的优点,提出了一种新的基于动态组播代理的移动组播协议,该协议寻求最短转发路径和减少重建组播树频率之间的平衡点,从而达到最有效地利用网络资源的目的.仿真结果表明该方法具有良好的综合性能,是一种新的IPv6环境下高效的移动组播算法.IETF mobile IP working group has proposed two basic multicast mechanisms for mobile host in mobile IP protocol： bi-directional tunnel （MIP-BT） and remote subscription （MIP-RS）, which have complementary advantages and shortcomings. In this paper, the authors assimilate the advantages of these two proposals, and present a new mobile multicast protocol based on the dynamic multicast agent. It is a compromise between shortest forwarding path and reducing the frequency of rebuilding multicast tree, thus it achieves its goal for using network resources more effectively. The simulation result shows that the proposal has a good integrated performance. It is a new efficient mobile multicast arithmetic in IPv6 environment.

关 键 词：移动组播 双向隧道 远程加入 动态组播代理 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]