Low-power system-level design of VLSI packet switching fabrics

Wassal, Amr G.; Hasan, M.A.

doi:10.1109/43.924826

Cited by 35 publications

(12 citation statements)

References 29 publications

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“…In [3], he and his coauthors describe the use of optics in routers as a means for scaling capacity and reducing power consumption. Similarly, Minkenberg et al highlight power consumption as one among a number of issues and trends in the design of packet switch devices [4], while Wassal and Hasan investigate methods for decreasing power consumption in interconnection fabrics in [5]. Our perspective is that power consumption and heat dissipation have fast become the primary issues in router system design.…”

Section: Related Workmentioning

confidence: 99%

Power Awareness in Network Design and Routing

Chabarek

Sommers

Barford

et al. 2008

2008 Proceedings IEEE INFOCOM - The 27th Conference on Computer Communications

166

251

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Abstract-Exponential bandwidth scaling has been a fundamental driver of the growth and popularity of the Internet. However, increases in bandwidth have been accompanied by increases in power consumption, and despite sustained system design efforts to address power demand, significant technological challenges remain that threaten to slow future bandwidth growth. In this paper we describe the power and associated heat management challenges in today's routers. We advocate a broad approach to addressing this problem that includes making powerawareness a primary objective in the design and configuration of networks, and in the design and implementation of network protocols. We support our arguments by providing a case study of power demands of two standard router platforms that enables us to create a generic model for router power consumption. We apply this model in a set of target network configurations and use mixed integer optimization techniques to investigate power consumption, performance and robustness in static network design and in dynamic routing. Our results indicate the potential for significant power savings in operational networks by including power-awareness.

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Section: Related Workmentioning

confidence: 99%

Power Awareness in Network Design and Routing

Chabarek

Sommers

Barford

et al. 2008

2008 Proceedings IEEE INFOCOM - The 27th Conference on Computer Communications

166

251

View full text Add to dashboard Cite

show abstract

“…Proposed innovations include the use of optics in routers [18] and energy efficient switching fabric design [19]. Energy savings in communication networks, disused by the studies, mentioned above, can be combined with the notion of dynamic topologies presented in this paper.…”

Section: Related Workmentioning

confidence: 97%

Heuristics for dynamic topologies to reduce power consumption of networks

Aldraho

Kist

2010

2010 Australasian Telecommunication Networks and Applications Conference

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Energy consumption of communication networks is an important contributor to the ICT sector's greenhouse gas emission footprint. This research project focuses on power consumption reduction of communication networks by dynamically adapting network configuration to traffic demands. This is promising as networks are often under utilised over long periods. In the context of this work, dynamic topologies refers to a method of changing network links and nodes according to traffic loads. In this paper preliminary results are introduced and two simple heuristics are investigated: the Lightest Node First and the Least Loaded Node algorithms. Both generate reduced topologies for given traffic loads with smaller energy footprints than unmodified networks. Initial numerical results are presented for a small sample network of eight nodes with a large set of traffic demands. Depending on overall network utilisation, the algorithms are able to reduce the average network power consumption by up to 50% for this sample network.

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“…The reasons include socio-economic ones such as increasing the penetration of the Internet into under-developed parts of the world and environmental reasons including reduction of the overall green house gas emissions. Technological reasons for reducing energy consumption include the increasing cost of cooling and the limits placed on increasing the speeds of routers and switches due to heat dissipation in the hardware, [4], [8], [12], [3]. Our focus in this paper is on reducing the energy consumption of enterprise networks which form a very large fraction of the deployed Internet (consider the fact that most workers use computers and most workplaces have networked devices like printers etc -all of these billions of nodes are connected through enterprise networks to the Internet).…”

Section: Introductionmentioning

confidence: 99%

Energy-Conserving Switch Architecture for LANs

Yiu

Singh

2011

2011 IEEE International Conference on Communications (ICC)

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Abstract-Reducing energy consumption in the Internet has become an increasingly important goal recently. Previous work on reducing energy consumption has primarily looked at either changing link rates or putting interfaces to sleep. Due to the unpredictable nature of traffic, the energy savings achieved have been modest, do not scale, and incur losses and delay. This paper proposes a different approach to the problem which involves a new switch atchitecture combined with a simple sleep/awake algorithm. The main results we obtain are that energy consumption, measured as fraction of interfaces that are awake, scales linearly with load for all loads with no delay and very low packet loss. We demonstrate the behavior of the algorithm via detailed simulations using synthetic traffic and traffic traces collected at a LAN switch in our university. We obtain over 90% energy saving in all real traffic traces and zero packet loss.

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Low-power system-level design of VLSI packet switching fabrics

Cited by 35 publications

References 29 publications

Power Awareness in Network Design and Routing

Power Awareness in Network Design and Routing

Heuristics for dynamic topologies to reduce power consumption of networks

Energy-Conserving Switch Architecture for LANs

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