Greening the NetFPGA Reference Router

Feng Guo, Xiaojun Wang, Mei Song, Yifei Wei, Olga Ormond and Martin Collier
Additional contact information
Feng Guo: School of Electronic Engineering, Dublin City University, Dublin 9, Ireland
Xiaojun Wang: School of Electronic Engineering, Dublin City University, Dublin 9, Ireland
Mei Song: School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Yifei Wei: School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Olga Ormond: School of Electronic Engineering, Dublin City University, Dublin 9, Ireland
Martin Collier: School of Electronic Engineering, Dublin City University, Dublin 9, Ireland

Energies, 2016, vol. 9, issue 7, 1-21

Abstract: Energy efficiency is an important criterion in the design of next generation networks for both economic and environmental concerns. This paper presents an energy-efficient router that is able to dynamically adapt its routing capability in response to real-time traffic load, achieving energy proportional routing. The NetFPGA reference router, which operates at one of two frequencies (125 MHz or 62.5 MHz), requires a board reset to switch frequencies. We have modified the reference router to allow dynamic switching among five operating frequencies. Experiments with real traces indicate that, compared to the reference router, a 10% power reduction can be achieved through dynamic frequency scaling. When the router is further modified to support green traffic engineering and Ethernet port shut-down, power consumption can be reduced by 46% while maintaining the required quality of service. This allows the router to meet the instantaneous performance requirements while minimizing power dissipation. Similar results can be expected when these general power-saving principles are applied in future commercial routers.

Keywords: green networking; energy proportional routing; dynamic frequency scaling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/9/7/500/pdf (application/pdf)
https://www.mdpi.com/1996-1073/9/7/500/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:9:y:2016:i:7:p:500-:d:73039

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().