2002, Volume 4, Issue 1
Strategic Study of CAE >> 2002, Volume 4, Issue 1
Research and Realization of IP Multicast Routing Protocol
China Academy of Telecommunication Technology, Ministry of Information Industry, Beijing 100083, China
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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 protoool 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.
Keywords
protocol independent multicast-sparse mode (PIM-SM) ; multiple rendezvous ; point (RPs) ; multicast
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References
[ 1 ] EstrinD , FarinacciD , HelmyA , etal.Protocolinde pendentmulticast sparsemode (PIM -SM ) :protocolspecification[S].RFC 2362, June1998.
[ 2 ] DeeringS , EstrinD , FarinacciD , etal.Thepimarchi tectureforwide areamulticastrouting[M ].ACMTransactionsonNetworks, April1996
[ 3 ] FennerW .Internetgroupmanagementprotocol, version2[S].RFC 2236, November1997
[ 4 ] SemeriaC , MauferT .Introductiontomulticastrouting[M], InternetDraft, InternetEngineeringTaskForce (IETF) , March1996.
[ 5 ] HandleyM , CrowcroftJ .Multicasttoday[J].TheIn ternetProtocolJournal, 1999, 2 (4) :2～19
[ 6 ] ComerDE , StevensDL .用TCP/IP进行网际互连 (第二卷) :设计、实现和内部构成[M ].第二版.张 娟, 王 海.北京:电子工业出版社PRENTICEHALL出版公司, 1998
[ 7 ] ParkhurstWR (CCIE) .Cisco组播路由与交换技术[M].京京工作室.北京:机械工业出版社McGrrawHill出版公司, 1999 link1
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