Abstract
Nowadays energy efficiency has been one of the most urgent issues for Data center networks. Flow scheduling methods based on exclusive routing have been used to minimize the network energy while meeting the network performances, such as network throughput, and flow deadline. However these energy efficient exclusive routings only maximize the utilization of ports, which may leave switches underutilized. In this paper, we propose a bandwidth-aware energy efficient routing algorithm with SDN to minimize the overall energy for data center traffic in time dimension. With simulations implemented in OMNeT++, we show that our algorithm can reduce the overall energy with respect to the traffic volume and reduce the flow completion time on average.
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