Sago: A network resource management system for real-time content distribution

Tzi Cker Chiueh, Kartik Gopalan, Anindya Neogi, Chang Li, Srikant Sharma, Sheng Ming Shan, Jiawu Chen, Wei Li, Nikolai Joukov, Jie Zhang, Fu Hau Hsu, Fanglu Guo, Sheng I. Doong

研究成果: 雜誌貢獻期刊論文同行評審


Content replication and distribution is an effective technology to reduce the response time for Web accesses and has been proven quite popular among large Internet content providers. However, existing content distribution systems assume a store-and-forward delivery model and is mostly based on static content. This paper describes the design, implementation, and initial evaluation of a network resource management system for real-time Internet content distribution called Sago, which provides facilities to provision and allocate network resources so that multiple bandwidth-guaranteed and fault-tolerant multicast connections can be multiplexed on a single physical network. Sago includes a novel network resource mapping algorithm that takes into account both physical network topology and dynamic traffic demands, a network-wide fault tolerance mechanism that supports both node-level and link-level fault tolerance, and a hierarchical network link scheduler that provides performance protection among multicast connections sharing the same physical network link. Moreover, Sago does not require any IP multicasting support from underlying network routers because it performs application-level multicasting. The technologies underlying Sago are important building blocks for real-time content distribution networks, end-to-end quality of service guarantee over global corporate intranets, and application-specific adaptation of wide-area network services.

頁(從 - 到)557-562
期刊Proceedings of the International Conference on Parallel and Distributed Systems - ICPADS
出版狀態已出版 - 2002


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