 High-level modelling of critical infrastructures' interdependenciesSimon Delamare, Alpha-Amadou Diallo and Claude Chaudet International Journal of Critical Infrastructures, 2009, vol. 5, issue 1/2, 100-119 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. Keywords: critical infrastructures; modelling; system interdependencies; electrical networks; telecommunication networks; cross-domain cascading; cascading failures; failure propagation. (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:ids:ijcist:v:5:y:2009:i:1/2:p:100-119 Access Statistics for this article More articles in International Journal of Critical Infrastructures from Inderscience Enterprises Ltd |
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