Estudio y Modelado de una Red de Distribución de Contenido (A Modelled Study of Content Delivery Networks)

Benjamin Molina Moreno (, Carlos E. Palau Salvador (, Manuel Esteve Domingo (

Grupo de Sistemas y Aplicaciones de Tiempo Real Distribuido, Departamento de Comunicaciones, Universidad Politécnica de Valencia, España
This paper appears in: Revista IEEE América Latina

Publication Date: April 2005
Volume: 3,   Issue: 2 
ISSN: 1548-0992

Delivery Networks (CDNs) appeared at late 90's as a means of reducing response time experienced by Internet users by distributedly placing multiple servers, called surrogates, in the client network neighbourhood. Many companies have deployed their own propietary CDN hiding implementational aspects, which guides to a lack of a general open model that describes CDN behaviour from an analytical perspective. This article proposes a general expression for a CDN considering certain design parameters, such as caching hit rate, delay and number of clients and surrogates.

Index Terms:
Content deistribution network, simulation, performance evaluation   

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