Power Consumption Comparison of NetFPGA-based Routers

Abstract

Abstract-Energy efficiency is one of the most important issues in designing the future Internet. For examining an energy efficient router, in this paper, differnet routers such as rate control protocol (RCP) router, precision time protocol (PTP) router and reference router are compared in terms of the power consumption. The experimental measurements demonstrate that with varying the traffic load, the RCP router and the PTP router consume almost identical power which is about >1% higher than that of the reference router. This power degradation is observed to be from the 3.3V power component of the total power consumption and arises from the increased design complexity for implementing the RCP and the PTP onto the router. In addition, the down scaling of the NetFPGA core operational frequency is promising for reducing the energy consumption of the RCP router and PTP router.