Energy efficiency and delay performance of data transfer using dynamic optical switching

We investigate the potential trade-off between energy efficiency and latency of file transmission over IP and Optical domains. We consider various queueing disciplines that are applicable to these domains, and show that existing schemes achieve only one at the expense of the other. We show that we can simultaneously achieve low-latency file transfers in an energy-efficient manner using an intuitive approach that is easy to implement in next-generation networks.