Estimating the Best Performance Option for Content Delivery Networks

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A. KUMAR
F. KHUHAWAR
N, ZAKI
S. ALI
B. KHALID
A. SHAH

Abstract

Content Delivery Network (CDNs) have been developed to overcome the fundamental limitations of Internet in terms of Quality of Service (QoS). A CDN replicates the content of origin server to surrogate servers placed across the globe to deliver the contents to the end users in an efficient way. Content delivery on the Web has received considerable research attention and the idea is to suggest an efficient networking infrastructure and replica scenario through performance analysis of CDN. Despite its inherent limitations, even a not very complex infrastructure can show many characteristics about its ability to serve website and media traffic in a low latency model. In this paper Server utilization issues, request failure as well as mean response time are analyzed by testing different CDN policies. An efficient infrastructure is then suggested to provide guaranteed QoS for Web contents using content delivery networks.

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