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Summary: An Analysis of Internet Content Delivery Systems
Stefan Saroiu, Krishna P. Gummadi, Richard J. Dunn, Steven D. Gribble, and Henry M. Levy
Department of Computer Science & Engineering
University of Washington
{tzoompy,gummadi,rdunn,gribble,levy}@cs.washington.edu
Abstract
In the span of only a few years, the Internet has expe-
rienced an astronomical increase in the use of specialized
content delivery systems, such as content delivery networks
and peer-to-peer file sharing systems. Therefore, an under-
standing of content delivery on the Internet now requires
a detailed understanding of how these systems are used in
practice.
This paper examines content delivery from the point of
view of four content delivery systems: HTTP web traffic, the
Akamai content delivery network, and Kazaa and Gnutella
peer-to-peer file sharing traffic. We collected a trace of all
incoming and outgoing network traffic at the University of
Washington, a large university with over 60,000 students,
faculty, and staff. From this trace, we isolated and char-
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