CDN brokering

Authors:
Alexandros Biliris;Chuck Cranor;Fred Douglis;Michael Rabinovich;Sandeep Sibal;Oliver Spatscheck;Walter Sturm
Affiliations:
AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA;AT & T, Florham Park, NJ, USA
Venue:
Computer Communications
Year:
2002

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Abstract

Content distribution networks (CDNs) increase the capacity of individual Web sites and attempt to deliver content from caches that are located 'closer' to end-users than the origin servers that provide the content. CDN brokering provides CDNs a way to interoperate by allowing one CDN to intelligently redirect clients dynamically to other CDNs. This paper describes the goals, architecture, and performance of a CDN brokerage system. Our system has been deployed on the Internet on a provisional basis, and our architectural ideas have helped advance the evolution of Internet standards for interoperating CDNs.