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High-level modelling of critical infrastructures' interdependencies

Author

Listed:
  • Simon Delamare
  • Alpha-Amadou Diallo
  • Claude Chaudet

Abstract

Due to the increasing demand in services' quality and the growing concerns about external threats, the protection of critical infrastructures has recently become a major concern. In this article, we study the potential effect of interdependencies that may occur between two of these infrastructures: the telecommunication networks and the electrical network. In the absence of side protection mechanisms such as multihoming or batteries, these types of networks highly depend on each other. A failure of some component in one of these architectures may cause a fault in the other, for example, when an electrical outage occurs, routers may be switched off as soon as their battery has depleted. This can lead to cross-domain cascading effects in failures propagation that cause general service unavailabilty. To understand this phenomena, we propose a model that describes the behaviour of these interdependent systems. We show on realistic topologies that simple failures can lead to failures propagation and we derive the potential risk scenarios.

Suggested Citation

  • Simon Delamare & Alpha-Amadou Diallo & Claude Chaudet, 2009. "High-level modelling of critical infrastructures' interdependencies," International Journal of Critical Infrastructures, Inderscience Enterprises Ltd, vol. 5(1/2), pages 100-119.
    • Handle: RePEc:ids:ijcist:v:5:y:2009:i:1/2:p:100-119
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    Citations

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    Cited by:

    1. Beccuti, Marco & Chiaradonna, Silvano & Di Giandomenico, Felicita & Donatelli, Susanna & Dondossola, Giovanna & Franceschinis, Giuliana, 2012. "Quantification of dependencies between electrical and information infrastructures," International Journal of Critical Infrastructure Protection, Elsevier, vol. 5(1), pages 14-27.
    2. Ouyang, Min, 2014. "Review on modeling and simulation of interdependent critical infrastructure systems," Reliability Engineering and System Safety, Elsevier, vol. 121(C), pages 43-60.
    3. Utne, I.B. & Hokstad, P. & Vatn, J., 2011. "A method for risk modeling of interdependencies in critical infrastructures," Reliability Engineering and System Safety, Elsevier, vol. 96(6), pages 671-678.

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