What is Green Router

This article is addressed to network engineers and managers of large enterprises that are interested in energy consumption of network devices. In the last years many efforts in telecommunications network research and design have been devoted to reduce energy consumption of network devices. Development of green routers aimed at saving energy when the input traffic is low is receiving increasing attention in the scientific community. In this article we face the problem of further reducing power consumption in transport networks adopting the Fast Reroute technique together with a low power idle approach, which result in substantial energy saving when the traffic on the network is low. We have run simulations using NS-2 and as test case, we developed the proposed approach on top of the NetFPGA architecture and results are very promising for larger exploitation.