NGL02-2: Ethernet Adaptive Link Rate (ALR): Analysis of a Buffer Threshold Policy
- 1 November 2006
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 27 (1930529X) , 1-6
- https://doi.org/10.1109/glocom.2006.250
Abstract
Rapidly increasing energy use by computing and communications equipment is a significant problem that needs to be addressed. Ethernet network interface controllers (NICs) consume hundreds of millions of US$ in electricity per year. Most Ethernet links are underutilized and link power consumption can be reduced by operating at lower data rates. An output buffer threshold policy to change link data rate in response to utilization is investigated. Analytical and simulation models are developed to evaluate the performance of Adaptive Link Rate (ALR) with respect to mean packet delay and time spent in low data rate with Poisson traffic and 100 Mb/s network traces as inputs. A Markov model of a state-dependent service rate queue with rate transitions only at service completion is developed. For the traffic traces, it is found that a link can operate at 10 Mb/s for over 99% of the time yielding energy savings with no user-perceivable increase in packet delay.Keywords
This publication has 10 references indexed in Scilit:
- Reducing the Energy Consumption of Ethernet with Adaptive Link Rate (ALR)IEEE Transactions on Computers, 2008
- Ethernet Adaptive Link Rate: System Design and Performance EvaluationProceedings. 2006 31st IEEE Conference on Local Computer Networks, 2006
- Managing energy consumption costs in desktop PCs and LAN switches with proxying, split TCP connections, and scaling of link speedInternational Journal of Network Management, 2005
- The next frontier for communications networks: power managementComputer Communications, 2004
- A feasibility study for power management in LAN switchesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Greening of the internetPublished by Association for Computing Machinery (ACM) ,2003
- Data Networks are Lightly Utilized, and will Stay that WayReview of Network Economics, 2003
- CSIM19: a powerful tool for building system modelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Performance evaluation of scheduling algorithms for imprecise computer systemsJournal of Systems and Software, 1991
- A queuing process with bilevel hysteretic service‐rate controlNaval Research Logistics Quarterly, 1967