【摘要】 随着业务量和用户规模的迅猛增长,互联网应用已经从初期的信息交换向信息共享转变。在传统网络构架的限制下,共享信息服务所产生的大量冗余传输使Internet业务承载能力面临巨大的挑战。该文基于Internet的"小世界"特性和分布式镜像技术,提出一种非对称的广域覆盖共享信息网络结构,研究了新结构下Internet主流信息共享的主动服务模式;并讨论了资源解析、重组等关键技术。在Tunet中的实验结果表明,新结构具有高覆盖能力、检索便捷等特点,同时网络延时等指标得到明显改善。更多还原

【Abstract】 The application of Internet is being changed from information exchange to information sharing,along with the durative rapid growing of internet information and demands.However,the study on the network survey indicates that the current network architecture is being unbearable due to the masses of redundant data transmission by the information sharing services.This paper proposes a new asymmetric network architecture for ubiquitous information sharing,which bases on "small-world" theory and distributed caching technique.Then the initiative service mode and some key techniques of the new architecture for mainstream Internet information sharing are presented.The experiment on Tunet shows that new architecture has high covering and efficient indexing characteristic,moreover,has remarkable advantages in delay and bandwidth.更多还原