Modeling content delivery networks and their performance

Authors:
Benjamin Molina;Carlos E. Palau;Manuel Esteve
Affiliations:
Department of Communication, Polytechnic University of Valencia (UPV), C/ Camino de Vera s/n 46022 Valencia, Spain;Department of Communication, Polytechnic University of Valencia (UPV), C/ Camino de Vera s/n 46022 Valencia, Spain;Department of Communication, Polytechnic University of Valencia (UPV), C/ Camino de Vera s/n 46022 Valencia, Spain
Venue:
Computer Communications
Year:
2004

Citing 7
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Abstract

Content Distribution Networks (CDN) have recently appeared as a method for reducing response times experienced by Internet users through locating multiple servers close to clients. Many companies have deployed their own CDN-and so demonstrating the resulting effectiveness. However, many aspects of deployment and implementation remain proprietary, evidencing the lack of a general CDN model to help the research community analyze different working scenarios. In this paper, we propose a general expression for a content distribution environment and study the performance impact of design variables such as caching hit ratios, network latency, number of surrogates, and server capacity. Our conclusions are supported with simulations results.