| IP组播路由协议的研究与实现 |
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| 引用本文： | 李炜. IP组播路由协议的研究与实现[J]. 中国工程科学, 2002, 4(1): 82-88 |
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| 作者姓名： | 李炜 |
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| 作者单位： | 信息产业部电信科学技术研究院,北京,100083 |
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| 摘 要： | 概述了组播路由协议，分析了协议独立的组播路由－稀疏模式（PIM－SM）的缺陷，提出多个会聚点（RPs)的PIM－SM的改进机制，多个RPs机制有效地提高了原有单个RP的PIM－SM协议的健壮性，有利于实现负载均衡、分类业务及提高系统的容错性能，并讨论多个RPs机制的开销问题。分析了PIM－SM实现细节和组播技术的前景。
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| 关 键 词： | 组播路由协议 组播路由－稀疏模式 多会聚点 IP组播 |
| 文章编号： | 1009-1742(2002)01-0082-07 |
| 修稿时间： | 2001-10-11 |
Research and Realization of IP Multicast Routing Protocol |
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| Li Wei. Research and Realization of IP Multicast Routing Protocol[J]. Engineering Science, 2002, 4(1): 82-88 |
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| Authors: | Li Wei |
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| Abstract: | This paper first explains why IP multicasting must be used. Then it summaries the fundamentals of IP multicasting and multicast routing protocols. After that it specially discusses protocol independent multicast sparse mode (PIM SM), points out its defect and proposes a scheme to solve it. In this scheme each source registers and sends data packets toward multiple rendezvous points (RPs) but receivers only join to a single RP. If one of the RPs fails, receivers will join to one of the alternative RPs quickly. On implementation, the paper centers on the details of implementing PIM SM. Finally it discusses the problems and prospect of IP multicasting. [ |
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| Keywords: | protocol independent multicast sparse mode (PIM SM) multiple rendezvous point (RPs) multicast |
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