LAGO , Paolo

We consider a new generation of Commercial-Off-The-Shelf (COTS) Software Routers (SRs), able to effectively exploit multi-core/CPU hardware platforms. This choice was mainly driven from the fact that SRs are one of the few platforms including power management features, and that can be easily customized. Our main objective is to evaluate and to...

This paper deeply and experimentally analyzes the efficiency of low power idle techniques when applied to packet processing engines of network devices. To this purpose, we set up a complex testbed that allowed us to perform several measurements on energy- and network-performance indexes. The reference device platforms that we selected for this...

This paper presents an Adaptive Rate (AR) control policy for trading off power consumption and performance of packet forwarding engines. We assume a Forwarding Engine (FE) whose power can be scaled through Dynamic Voltage and Frequency Scaling (DVFS) and Clock Gating (CG). In a typical architecture, data packets are always transferred at the...

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We consider a networking infrastructure, upon which various "large" users (e.g., Telecom Operators, data centers, etc.) have multiple paths to deliver an aggregated entry flow to a certain destination. The flow of each user can be split among the different paths that traverse energy-aware routers. The routers adopt a specific strategy to...

With the advent of network 'softwarization', Network Functions Virtualization (NFV) is foreseen to provide flexibility and programmability levels that would essentially help in coping with tomorrow's demands. However, energy efficiency and the resulting complexity of network/service management pose serious sustainability and scalability issues...

In this paper, our objective is to experimentally evaluate how the incoming and outgoing traffic patterns provided by the TCP protocol impact on the energy efficiency of a networked device under a number of realistic scenarios. To this purpose, we set up a complex testbed that allowed us to perform a huge number of measurements on energy- and...

The concept of energy-efficient networking has begun to spread in the past few years, gaining increasing popularity. Besides the widespread sensitivity to ecological issues, such interest also stems from economic needs, since both energy costs and electrical requirements of telcos' and Internet Service Providers' (ISPs) infrastructures around...

The increasing energy demands of network and networked device architectures represent a threat to the development of the Future Internet. Aside from environmental concerns and increasing energy costs, multi-core processors will soon be constrained by power consumption, which will eventually slow down the development of new technologies. In...

The increasing energy demands of networks and networked devices represent a threat to the development of the Future Internet. In this respect, recent research projects were devoted to extending next generation networks, architectures and protocols in the green direction. This paper presents a complex demonstration network specifically designed...