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ڵλãʱ
涷ںѲ йزűָʹ
2010-05-20 21:51йֻԭߣ
ȻԺӿƽ㲥ͻںϡǴԵ㷽壬ȻѲɼ͵ŵԶǹȥô򵥡֮ڸŸᡣ

ںԵ㹤(һ)У͵ŲִһǶںϵĻҪ󣬱Լص30MԼص8Mũ2Mķڴȼϡ

߲ίƽ˿罨2011꣬˿˿ڳ8000򣬳ûƽﵽ8ױÿϣũûƽﵽ2ױÿϣҵ¥ûʵ100ױÿϵĽ100MĽΪսһ㲥(NGB)

ǰйزŷļҪӷչ淶ҲĿǰҵ糧ԽĻӺ͵㲥ƽ̨ǷϵͳĴýҲƣƽ̨Ļɫ⡢Ȩ⡣һļӪ̵ipTVȵ㲥粻ܻøòŵգͬǡǷȻʿָòŴ˾ٶһԼIJ֮٣ȱִ˴ʵִһֽġ

ںڹ90ʼѾڹʵУйڵط1998Ĺ翪ʼҵܵصӪ̵ļҷƣͻĵŹҵϷ

ںϺߵ1999꣬ҵѧ߸ԼĿǵ9¹Ժġڼǿ㲥罨ļ׶Ͼںϣļ涨ŲŲô¹㲥ҵ񣬹㲥ӲҲôͨҵ񡣶ҪŲ׼ʱλ쳣ǿƵӪȡȫʤ

Ȼల¡ʵϵ°ӿڹϵͳѳݴdz¢¹ϵͳµĸص̨˵ߣһЩҵƳӰ㲥Ϊûֶοʼݴ2005꿪ʼһչ(iptv)շʽ

粿ҲûţڽֻĹƽ̨ϣعϵͳ˽¿ҵ2002Ⱥ࣬гıըʽ޶͹ϵͳγɾ޴󷴲ʹϲƽֿʼϵͳŲĬ˹ϵͳĿӪ

iptv棬ȻʡƳIPTVֱʴгϵͳԴ˸ߵѻһֱǷġiptvҵûеõƣȻϯȫȻŲŵiptvǷǷһЩı£ȱǿƵִǹ粿ŵߡʵϣȫ󲿷ֵ粿Ŷûа취ֹŲšǷƳiptvʱգiptvѾûκ塣

ϵͳʼһռδĸٴ£صŵiptvԼĴͳӴʵ̫ԣֹiptvֻȫԼ硣ǹܾNGBƻ3ʱ串ȫҪУ10ҵʱ佨һ㲥һ㲥ɺ󣬹Ǹʽﵽ1Tbpsûߴ60MbpsٶȼĿǰ30ڴϵͳ£紫ͳƵŵƽõǿ

Ĺؼǣ͵ҵ˫Ʊػᵼ¹ֺܾ͹ŲһͻιЭͳΪ⡣

еĹ򣬶ڵӪ˵ӵпԴ²ֹ㲥ӽĿʹ䣬ݵļȻڹ粿ţ˷չǰá֮Ҳǵҵǿ

ԵŲŵӪѾڹƶ硢źͻ¼ʵĻ粿Ľ軹൱ʱ䣬˹ϵͳڼӿƽ˫ں϶㡣

нӽƶŵķʿ͸¶ںԵ㷽ĵУصᱻŴ󡣹粿ΪƵŲŶƵ㲥͵תϰڿ棬ͳŲΪƹϵͳ϶ѹƽ̨

ȻԺƶںϵijǻͬʱԴ˷ѣĽǶȣۿΪʵԼ򵥵Ŀǵɴ͹㲥ӽĿ´ͳҵûѡȨѼ۸񡢳ɱڣĿǰϵͳĵתƽ̨ԻǽĿԴǵ㲥ܷ涼󣬵ȴȡ͵ķá棬йڵصĴ뻧ƽԼ1-2MԶԶڳ10MϵĴйڵռ˾5%-7%ȫǰСҪʵֻڴ뻧ϵƵšӦá

зʿΪĿǰйڵعƽ̨ƽ̨ڹʳˮƽԭǹ͵Ӫҵϵͳ¢ϺȱϵľӪͬһϵ˴ĿǶͶ޴ĿӪ̲ԣ෴ܲҲֹԼ۸ʹȱڹϵͳһңǸ߶¢ϣ˹ϵͳʵӽĿѷܼ򵥣շѸ߰˷ʿָƽںϵֹؼǹܾӦðҵֵҵ񣬲ֱ棬ŲҲӦԹΪճ㣬֯Ӫ̵ϵֻԡġںϵ⡣

ĵַ:http://www.cnonline.org/2010/article/11460.html

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