Bringing Energy Aware Routing closer to Reality with SDN Hybrid Networks

Nicolas Huin 1 Myriana Rifai 2 Frédéric Giroire 1 Dino Lopez Pacheco 2 Guillaume Urvoy-Keller 2 Joanna Moulierac 1
1 COATI - Combinatorics, Optimization and Algorithms for Telecommunications
CRISAM - Inria Sophia Antipolis - Méditerranée , Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
2 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe SIGNET
Laboratoire I3S - SIS - Signal, Images et Systèmes
Abstract : —Energy aware routing aims at reducing the energy consumption of ISP networks. The idea is to adapt routing to the traffic load in order to turn off some hardware. However, it implies to make dynamic changes to routing configurations which is almost impossible with legacy protocols. The Software Defined Network (SDN) paradigm bears the promise of allowing a dynamic optimization with its centralized controller. In this work, we propose SENAtoR, an algorithm to enable energy aware routing in a scenario of progressive migration from legacy to SDN hardware. Since in real life, turning off network equipments is a delicate task as it can lead to packet losses, SENAtoR provides also several features to safely enable energy saving services: tunneling for fast rerouting, smooth node disabling and detection of both traffic spikes and link failures. We validate our solution by extensive simulations and by experimentation. We show that SENAtoR can be progressively deployed in a network using the SDN paradigm. It allows to reduce the energy consumption of ISP networks by 5 to 35% depending on the penetration of SDN hardware, while diminishing the packet loss rate compared to legacy protocols.
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Nicolas Huin, Myriana Rifai, Frédéric Giroire, Dino Lopez Pacheco, Guillaume Urvoy-Keller, et al.. Bringing Energy Aware Routing closer to Reality with SDN Hybrid Networks. GLOBECOM 2017 - IEEE Global Communications Conference, Dec 2017, Singapore, Singapore. pp.7. ⟨hal-01595989⟩

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