GreCo: An Energy Aware Controller Association Algorithm for Software Defined Networks

Software Defined Networks (SDNs) separate the control and data planes of devices to expedite the deployment, configuration and evolution of networks. In this respect, controllers play a key role. In particular, they control the behavior of switches and must do so quickly. This, however, may be at od...

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Bibliographic Details
Published inIEEE communications letters Vol. 19; no. 4; pp. 541 - 544
Main Authors Ruiz-Rivera, Alejandro, Kwan-Wu Chin, Soh, Sieteng
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2015
Subjects
Binary Integer Program
Control and Data Plane
Control systems
Delays
Energy consumption
Energy Savings
Load management
Network topology
Propagation delay
Topology
Traffic Engineering
energy savings
control and data plane
traffic engineering
Binary integer program
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ISSN1089-7798
DOI10.1109/LCOMM.2015.2394457

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Summary:Software Defined Networks (SDNs) separate the control and data planes of devices to expedite the deployment, configuration and evolution of networks. In this respect, controllers play a key role. In particular, they control the behavior of switches and must do so quickly. This, however, may be at odds with the goal of reducing the energy consumption of a SDN because powering down links may cause controllers to use paths with larger propagation delays. To this end, we address the problem of assigning switches to controllers with the aim of switching off the maximum number of links subject to the following constraints: delay, link and controller load. Experimental results over four well known topologies show energy savings of up to 55% during off peak times.
ISSN:1089-7798
DOI:10.1109/LCOMM.2015.2394457