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NETCAP: a capacity planning tool for practical content distribution network designs
Author(s) -
Habib Sami J.
Publication year - 2007
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.813
Subject(s) - computer science , network planning and design , network topology , server , distributed computing , function (biology) , topology optimization , computer network , topology (electrical circuits) , mathematical optimization , physics , mathematics , combinatorics , finite element method , evolutionary biology , biology , thermodynamics
Abstract This paper describes a capacity planning tool NETCAP, which is a prototype software program for automatically planning and integrating application‐specific content‐distribution networks (CDNs). The CDN integration problem consists of two problems: data management system design problem and network topology design problem. The data management system design problem comprises of the server placement and file allocation problems, where the network topology design problem involves determining the network topology with network technology considerations. The CDN integration problem has been formulated as an optimization problem; where the objective function is to optimize a network topology that satisfies both the servers' access requirements and clients' communications. An evolutionary technique is used in NETCAP to search the design space. The experimental results for a CDN integration problem described here demonstrate the effectiveness of NETCAP in finding good CDN designs from a large design space in a few minutes. Copyright © 2006 John Wiley & Sons, Ltd.