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Adriana Fernández-Fernández
Department of Network Engineering, Universitat Politècnica de Catalunya (UPC)
Cristina Cervelló-Pastor
Department of Network Engineering, Universitat Politècnica de Catalunya (UPC)
Leonardo Ochoa-Aday
Department of Network Engineering, Universitat Politècnica de Catalunya (UPC)
Vol. 5 No. 3 (2016), Articles, pages 13-19
Accepted: Nov 15, 2016


The growing energy consumption of communication networks has attracted the attention of the networking researchers in the last decade. In this context, the new architecture of Software-Defined Networks (SDN) allows a flexible programmability, suitable for the power-consumption optimization problem. In this paper we address the issue of designing a novel distributed routing algorithm that optimizes the power consumption in large scale SDN with multiple domains. The solution proposed, called DEAR (Distributed Energy-Aware Routing), tackles the problem of minimizing the number of links that can be used to satisfy a given data traffic demand under performance constraints such as control traffic delay and link utilization. To this end, we present a complete formulation of the optimization problem that considers routing requirements for control and data plane communications. Simulation results confirm that the proposed solution enables the achievement of significant energy savings.


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