介绍了CDN的发展状况、市场情况,分析了CDN所采用的关键技术,剖析了目前国内外研发CDN的主要厂商的实现方案,提出了CDN在广电中的几种应用。研究表明,CDN在广电中有着广泛的应用,对广电的发展起着至关重要的作用。
This paper firstly introduces the development and market status of CDN (content delivery network), and secondly analyzes its key technology. Thirdly we show its technical realization of several main manufacturers. Finally we present its applications in radio and TV industry. In conclusion, CDN is widely applied in radio and TV industry and has very important value.