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Summary: IEEE Communications Magazine · November 2008148 0163-6804/08/$25.00 © 2008 IEEE
INTRODUCTION
Network traffic measurements collected across
the Internet provide very meaningful informa-
tion for researchers, service providers, and other
members of the Internet community [1]. On one
hand, network operators may benefit from such
information in their goal of ensuring the appro-
priate quality of service (QoS) to their cus-
tomers. Indeed, the ever-increasing user
demands and wide variety of application require-
ments are forcing Internet service providers
(ISPs) to develop network capacity plans very
carefully, not only to maintain the QoS provid-
ed, but also to reduce the need for investment.
ISPs have not underestimated the benefits of
traffic measurements, and have traditionally
applied their potential to other related fields,
namely the performance evaluation of networks,
the detection of anomalies and denial of use
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