Energy Saving in Optical Operator Networks: the Challenges, the TREND Vision, and Some Results

Abstract

We discuss how to save energy in IP-over-WDM networks, presenting the vision of TREND, the FP7 NoE, and the saving that can be obtained with adaptive routing solutions that put network interfaces of various granularities to sleep in periods of low traffic. Results refer to two operator networks, considering power and traffic forecasts for 2020.