Improving the energy efficiency of software-defined backbone networks

Abstract : The continuous growth of traffic and the energy consumption of network equipments can limit the deployment of large-scale distributed infrastructure. This work aims to improve the energy efficiency of backbone networks by dynamically adjusting the number of active links according to network load. We propose an intra-domain software-defined network approach to select and turn off a subset of links. The SPRING protocol (a.k.a. segment routing) is used to make our algorithms converge faster. The algorithms—implemented and evaluated using the OMNET++ discrete event simulator—can achieve energy savings of around 44 % when considering real backbone networks.
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Radu Carpa, Olivier Glück, Laurent Lefèvre, Jean-Christophe Mignot. Improving the energy efficiency of software-defined backbone networks. Photonic Network Communications, Springer Verlag, 2015, 30 (3), pp.337-347. ⟨10.1007/s11107-015-0552-9⟩. ⟨hal-01246376⟩

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