组播拥塞控制是一个极其复杂的问题,本文仅对其中一些方面做了研究,要想完全解决拥塞问题必须综合多种策略,从网络的各部位、多角度、全方位对拥塞加以控制。关键词:拥塞控制;分层组播;TCP友好;区分服务;响应速度AbstractWiththeeV0lvementofIntem烈baSedonTCP锺只thescale,usersandtra笨csofithaVeexperienced锄explosiVegrowthsince1990’5.、Vorkapplication咖esandd),(QoS)inte衄softr{msmission(1elava11dthroughput,—to—、^,’:犯t,,UDPflowsarenotmendlytoTCPflowsbecausetlleyhavenocongestioncontrolscheme,soit’snecessarytodevelopcongeStioncontlDlschemesforUDPno、——Friendly,scalabili饥fIaimess;then、VedescribethelaStestresearchesanddeVelopmentsonmulcicastcongestionalgoritllms,;ⅡⅣandIntSemitexpouIldedthe‰Ⅳ.,worksandlinlitedto:worksisi11110Vationsofthisp印erincludebutnot(1)Ef诧ctiVemulticaStcongestioncontrolmechaIlismisurgentlyneededwithtlledeploymentofmultimedia印plicationsinIntemet,baSedontheaIlalysisresultsofthepresentlayeredmulticaSt,】rolarldch盯acterizeswithmoreresponsive,l∞旧rlossra:te锄dbetterTCP—Friendliness.(workheterogeneousproblemsismoreouts咖ding晰ththedeVelopmentofmultimediaapplicationsinImemet,anditcallsfornewdemandfortraditionalInulticaStcongestioncolltrol,layeredmulticastisconsideredtobealle衔cient印proacht0copeth
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