CDN is a kind of effective technology for content processing and distribution and can improve the network performance. However, the development and application of CDN are limited by some reasons, like operating system...CDN is a kind of effective technology for content processing and distribution and can improve the network performance. However, the development and application of CDN are limited by some reasons, like operating system and price of ISP. In addition, ISP is suffering network congestion brought by the sudden traffic migration and infrastructure deployment of CDN without the confusion of the basic information of the network. We should balance or coordinate the relationship between ISP and CDN. And the friendliness building of CDN and ISPs will promote the user experience, effectively guarantee their service quality, improve the network operation, and reduce the content distribution cost. In this paper, we discuss the basic working principle of CDN and ISP, analyze possibility of cooperation between CDN and ISP and conclude the existing methods from a novel angle. Furthermore, some suggestions for further research and solutions in this field are provided.展开更多
传统的CDN(Content Delivery Network)技术和P2P(Peer to Peer)技术无法很好地满足大规模视频服务的需求。为此,研究并分析了网格技术在CDN视频服务网络中的应用,设计出一种具有3层结构的视频服务系统,称为Grid-CDN。归纳总结了Grid-CD...传统的CDN(Content Delivery Network)技术和P2P(Peer to Peer)技术无法很好地满足大规模视频服务的需求。为此,研究并分析了网格技术在CDN视频服务网络中的应用,设计出一种具有3层结构的视频服务系统,称为Grid-CDN。归纳总结了Grid-CDN的主要功能和特点,并详细描述了每个层次的各个模块所实现的功能。设计并开发了视频服务的原型系统,对所开发的系统进行压力测试,Grid-CDN单POP节点可以提供超过2 000个视频流,通过在广域网环境下分布式布置大量POP(Provider of Point)节点,可以很好地满足大规模视频点播服务的需求。测试结果表明,该系统具有很高的实用价值。展开更多
基金supported by the National Natural Science Foundation of China under Grant No. 61503424the Research Project by The State Ethnic Affairs Commission under Grant No. 14ZYZ017+2 种基金the Jiangsu Future Networks Innovation Institute-Prospective Research Project on Future Networks under Grant No. BY2013095-2-14the Fundamental Research Funds for the Central Universities No. FRF-TP-14-046A2the first-class discipline construction transitional funds of Minzu University of China
文摘CDN is a kind of effective technology for content processing and distribution and can improve the network performance. However, the development and application of CDN are limited by some reasons, like operating system and price of ISP. In addition, ISP is suffering network congestion brought by the sudden traffic migration and infrastructure deployment of CDN without the confusion of the basic information of the network. We should balance or coordinate the relationship between ISP and CDN. And the friendliness building of CDN and ISPs will promote the user experience, effectively guarantee their service quality, improve the network operation, and reduce the content distribution cost. In this paper, we discuss the basic working principle of CDN and ISP, analyze possibility of cooperation between CDN and ISP and conclude the existing methods from a novel angle. Furthermore, some suggestions for further research and solutions in this field are provided.
文摘传统的CDN(Content Delivery Network)技术和P2P(Peer to Peer)技术无法很好地满足大规模视频服务的需求。为此,研究并分析了网格技术在CDN视频服务网络中的应用,设计出一种具有3层结构的视频服务系统,称为Grid-CDN。归纳总结了Grid-CDN的主要功能和特点,并详细描述了每个层次的各个模块所实现的功能。设计并开发了视频服务的原型系统,对所开发的系统进行压力测试,Grid-CDN单POP节点可以提供超过2 000个视频流,通过在广域网环境下分布式布置大量POP(Provider of Point)节点,可以很好地满足大规模视频点播服务的需求。测试结果表明,该系统具有很高的实用价值。
