| 内容分发网络研究 |
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| 引用本文： | 李乔,何慧,张宏莉.内容分发网络研究[J].电子学报,2013,41(8):1560-1568. |
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| 作者姓名： | 李乔 何慧 张宏莉 |
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| 作者单位： | 哈尔滨工业大学网络与信息安全研究中心, 黑龙江哈尔滨 150001 |
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| 基金项目： | 国家863高技术研究发展计划(No ．2011AA010705)；国家973重点基础研究发展计划(No ．2011CB302605)；国家自然科学基金 |
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| 摘 要： | 内容分发网络是一种以降低互联网访问时延为目的,在网络边缘或核心交换区域部署内容代理服务,通过全局负载调度机制进行内容分发的新型覆盖网络体系.随着多媒体网络流及实时交互技术的兴起,现今内容分发网络已成为互联网的核心应用之一.本文介绍了内容分发网络的演变过程与体系结构,深入剖析了内容分发网络的核心功能组件与工作机制,对当前主流内容分发网络进行分类,并讨论了内容分发网络性能度量,最后探讨了内容分发网络的未来挑战与进一步研究方向.
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| 关 键 词： | 覆盖网络 内容分发网络 内容路由 负载均衡 性能测量 |
| 收稿时间： | 2013-01-11 |
Research on Content Delivery Networks |
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| LI Qiao
,
HE Hui
,
ZHANG Hong-Li.Research on Content Delivery Networks[J].Acta Electronica Sinica,2013,41(8):1560-1568. |
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| Authors: | LI Qiao HE Hui ZHANG Hong-Li |
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| Affiliation: | Research Center of Network and Information Security, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China |
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| Abstract: | CDN (Content Delivery Network) is a novel overlay network,which deploys surrogates on the edge or backbone of network in order to reduce the access delay;it improves the efficiency of content delivery on the global load balance component.In current status,CDN has been a core Internet application as the development of multimedia and network technologies.In this paper,the evolution of CDN and its architecture are introduced;the key component of CDN and mechanism are presented;the taxonomy of CDNs and the performance measured strategies are reviewed.The developing trends of CDN and further topics in this area are also analyzed. |
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| Keywords: | overlay network content delivery network content routing load balance performance measure |
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