CDN Pricing

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Rajkumar Buyya · Mukaddim Pathan · Athena Vakali (Eds.)

Content Delivery Networks

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Editors Rajkumar Buyya University of Melbourne Dept. Computer Science& Software Engineering 111 Barry Street Carlton VIC 3053 Australia [email protected]

Mukaddim Pathan University of Melbourne Dept. Computer Science & Software Engineering 111 Barry Street Carlton VIC 3053 Australia [email protected]

Athena Vakali Aristotle University of Thessaloniki Dept. Informatics 541 24 Thessaloniki Greece [email protected]

ISBN: 978-3-540-77886-8

e-ISBN: 978-3-540-77887-5

Library of Congress Control Number: 2008930075 c 2008 Springer-Verlag Berlin Heidelberg  This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: eStudio Calamar S.L. Printed on acid-free paper 9 8 7 6 5 4 3 2 1 springer.com

To my personal and professional family – Raj To my parents – Mukaddim To my daughters – Athena

Preface

The emergence of Web as a ubiquitous media for sharing content and services has led to the rapid growth of the Internet. At the same time, the number of users accessing Web-based content and services are growing exponentially. This has placed a heavy demand on Internet bandwidth and Web systems hosting content and application services. As a result, many Web sites are unable to manage this demand and offer their services in a timely manner. Content Delivery Networks (CDNs) have emerged to overcome these limitations by offering infrastructure and mechanisms to deliver content and services in a scalable manner, and enhancing users’ Web experience. Applications of CDNs can also be found in many communities, such as academic institutions, advertising media and Internet advertisement companies, data centers, Internet Service Providers (ISPs), online music retailers, mobile operators, consumer electronics manufacturers, and other carrier companies. Along with the proliferation, formation, and consolidation of the CDN landscape, new forms of Internet content and services are coming into picture while distribution and management of content is introducing new challenges in this domain. This raises new issues in the architecture, design and implementation of CDNs. The technological trends in this domain need to be explored in order to p