Integrating reliability and quality of service in networks with switched virtual circuits

  • Authors:
  • Brunilde Sansò;André Girard;Florent Mobiot

  • Affiliations:
  • École Polytechnique de Montréal, Department of Electrical Engineering, 2900 Édouard-Montpetit P.O. Box 6079, Station Centre-ville, Montréal, Québec, H3C 3A7, Canada;INRS-EMT, Place Bonaventure 800, de la Gauchetière O. Suite 6900 Montréal, Québec, H5A 1K6, Canada;École Polytechnique de Montréal, Department of Electrical Engineering, 2900 Édouard-Montpetit P.O. Box 6079, Station Centre-ville, Montréal, Québec, H3C 3A7, Canada

  • Venue:
  • Computers and Operations Research
  • Year:
  • 2005

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Abstract

In this paper, we present an optimization model based on cost minimization for traffic engineering of multirate and ATM networks with switched virtual circuits (SVCs). There is an increasing interest for efficient traffic engineering methods for routing and dimensioning of large and robust multiservice networks. In the case of ATM and other types of packet multiservice networks, traffic engineering requires resource allocation and performance optimization at the cell or packet level in order to assure a satisfactory grade of service (GoS) at the call level to the users. Therefore, we are interested in networks with switched connections that are flexible enough so that planners may offer cost-effective networks with guaranteed GoS even in the event of important failures. The model integrates the notions of QoS, GoS, failures and failure propagation between the physical and the logical level as well as circuit routing.