Energy Saving Scheme with an Extra Active Period for LAN Switches
スポンサーリンク
概要
- 論文の詳細を見る
An immense number of LAN switches are currently in use worldwide. Therefore, methods that can reduce the energy consumption of these devices are of great practical interest. A simple way to save power in LAN switches is to switch the interfaces to sleep mode when no packets are buffered and to keep the interfaces in active mode while there are packets to be transmitted. Although this would appear to be the most effective energy saving scheme, mode switching gives rise to in-rush current, which can cause electrical damage to devices. This problem arises from excessive mode switching, which should be avoided. Thus, the main objective is to develop a method by which to reduce the number of mode switchings that result in short-duration sleep modes because these switchings do not contribute greatly to energy efficiency but can damage the device. To this end, a method is adopted whereby the interface is kept in active mode for an “extra” period of time after all packets have been flushed from the buffer. This period is the “extra active period (EAP)” and this scheme protects the device at the expense of energy saving efficiency. In this paper, this scheme is evaluated analytically in terms of its power reduction ratio and frequency of mode changes by modifying the M/M/1 and IPP/M/1 queuing models. The numerical results show how the duration of the extra active period degrades the energy saving performance while reducing the number of mode changes. We analytically show an exact trade-off between the power reduction ratio and the average number of turn-ons in the EAP model with Poisson packet arrival. Furthermore, we extend the scheme to determine the EAP dynamically and adaptively depending on the short-term utilization of the interface and demonstrate the effectiveness of the extended scheme by simulation. The newly developed scheme will enable LAN switches to be designed with energy savings in mind without exceeding the constraints of the device.
- （社）電子情報通信学会の論文
- 2010-12-01
著者
-
Tamura H
R&d Center Kasado Administrative Division Power & Industrial Systems Hitachi Ltd.
-
Oie Y
Kyushu Inst. Technol. Fukuoka Jpn
-
Oie Yuji
Kyushu Inst. Technol. Iizuka‐shi Jpn
-
Oie Yuji
The Department Of Computer Science And Electronics Kyushu Institute Of Technology
-
Oie Yuji
Department Of Computer Scienece And Electronics Kyushu Institute Of Technology
-
Oie Yuji
Telecommunications Advancement Organization Of Japan:department Of Computer Science And Electronics
-
Kawahara K
Department Of Computer Scienece And Electronics Kyushu Institute Of Technology
-
Kawahara Kenji
The Department Of Computer Science And Electronics Kyushu Institute Of Technology
-
Kawahara K
Network Design Research Center Kyushu Institute Of Technology
-
Tamura H
Department Of Computer Science And Electronics Kyushu Institute Of Technology
-
Tamura Hitomi
Network Design Research Center Kyushu Institute Of Technology
-
Oie Yuji
Faculty Of Computer Science And System Engineering Kyushu Institute Of Technology
-
Tamura Hitoshi
Mechanical Engineering Research Laboratory Hitachi Ltd.
-
FUKUDA Yutaka
Information Science Center, Kyushu Institute of Technology
-
TOMIHARA Ritsuko
Graduate School of Computer Sciences & Systems Engineering, Kyushu Institute of Technology
-
KAWAHARA Kenji
Faculty of Computer Sciences & Systems Engineering, Kyushu Institute of Technology
-
Tomihara Ritsuko
Graduate School Of Computer Sciences & Systems Engineering Kyushu Institute Of Technology
-
Fukuda Yutaka
Information Science Center Kyushu Institute Of Technology
関連論文
- Adsorption Properties of CH_3OH on Al(111) and Fe(100) Surfaces : A Periodic First-Principles Investigation
- Performance Evaluation of Channel Switching Scheme for Packet Data Transmission in Radio Network Controller(Mobile Radio)(Mobile Multimedia Communications)
- QoS Routing Algorithm Based on Multiclasses Traffic Load(Special Issue on New Technologies in the Internet and their Applications)
- SB-14-1 QoS Routing Algorithm based on Multi-classes Traffic Load
- Effectiveness and Issues of Rerouting Algorithms for QoS Networks (Special Issue on New Developments on QoS Technologies for Information Networks)
- Performance Comparison of Task Allocation Schemes Depending upon Resource Availability in a Grid Computing Environment(Performance Evaluation, Parallel/Distributed Computing and Networking)
- Performance Analysis of Layer3 Switch : Case of Flow-Driven Connection Setup (IEICE/IEEE Joint Special Issue on Recent Progress in ATM Technologies)
- Quality of Assured Service through Multiple DiffServ Domains(Special Issue on New Technologies in the Internet and their Applications)
- Queue Management of RIO to Achieve High Throughput and Low Delay (Special Issue on Internet Technology II)
- Performance Analysis of Flow Loss Probability and Link Utilization in MPLS Networks for Traffic Engineering(MPLS)(Internet Technology IV)
- Performance Analysis of IP Datagram Transmission Delay in MPLS: Impact of Both Number and Bandwidth of LSPs of Layer 2(Special Issue on Internet Technology II)
- Delay Analysis for CBR Traffic in Multimedia Enterprise Network
- Basic Investigation on Achieving High Resonance Quality Factor of Piezoelectric Vibrator
- Mechanism of the Reduction of Electron Shading Charge Build-up Using Pulsed Plasma
- High-Frequency Measurements of Plasma Parameters in Electron Cyclotron Resonance Plasma Etchers(Nuclear Science, Plasmas, and Electric Discharges)
- Evaluation of Charge Passed through Gate-Oxide Films Using a Charging Damage Measurement Electrode
- Production of highly uniform electron cyclotron resonance plasmas by distribution control of the microwave electric field
- Slant Slot Antenna-Type Electron Cyclotron Resonance Plasma Source
- Preparation of Multilayers by Alternate Cycles of Chemical Adsorption and Electron Beam Irradiation
- Electric Field Effect in LaTiO_3/SrTiO_3 Heterostructure
- Applicability of TiN Adhesion Layer Formed by Nitridation of Sputtered Ti Film to Blanket CVD-W Contact Filling
- P2-32 Load Characteristics of a Diagonally Symmetric Form Ultrasonic Motor Using a LiNbO_3 Plate(Poster session 2)
- Tunable Exchange Interaction in Quantum Dot Devices
- Quantum Chemical Calculations of Sulfur Doping Reactions in Diamond CVD
- Molecular Orbital Calculations of Sulfur Doping Reactions in Diamond CVD
- Computational Chemistry Study on Initial Stages of Nitridation of Silicon Surfaces
- Molecular Dynamics Simulations of Adhesional Forces via Hydrocarbon Films
- Nonlinear Susceptibility of Second Harmonic Generation Corresponded to the Diamond(100)Surface Structures
- Ferromagnetism in Semiconductor Dot Array
- Electric Field Effect in LaTiO_3/SrTiO_3 Heterostructure
- Thin Vibrator Alarm Using a Cantilever Piezoelectric Actuator
- Pt/PZT/n-SrTiO_3 Ferroelectric Memory Diode
- Inferring Traffic Flow Characteristics from Aggregated-flow Measurement(Special Issue on Selected Papers from SAINT 2002(The 2002 Symposium on Applications and the Internet))
- Inferring Link Loss Rates from Unicast-Based End-to-End Measurement (Special Issue on Internet Technology II)
- Identification of Formation of Conically Converging Shock Waves in an Alumina-Sphere-Dispersed Copper Rod
- Anisotropic Heating of a Copper and Graphite Powder Mixture during an Electrical Column Explosion
- Characterization and Modification of Amorphous Carbon Films Consisting of sp^2 and sp^3 Bonds Using Magneto-Plasma Dynamic Arc-Jet
- Performance Comparison of TCP Implementations in QoS Provisioning Networks (Special Issue on New Developments on QoS Technologies for Information Networks)
- HEXANE EXTRACTION-SPECTROPHOTOMETRY OF BISMUTH(III) WITH ο,ο'-DIETHYLDITHIOPHOSPHATE
- Analysis of Two-Phase Path Management Scheme for MPLS Traffic Engineering
- Performance Monitoring of VoIP Flows for Large Network Operations(New Challenge for Internet Technology and its Architecture)
- Real-Time IP Flow Measurement Tool with Scalable Architecture(Traffic Measurement and Analysis)(New Thechnologies and their Applications of the Internet)
- DYNAMIC BEHAIVIOR OF TCP-LIKE WINDOW CONTROL AND THROUGHPUT PERFORMANCE
- P2-36 Basic Study On a Threefold Rotatory Symmetric Form Quartz Vibrator for Triaxial Gyrosensor(Poster session 2)
- Triaxial Quartz Gyrosensor Using a Threefold Rotatory Symmetric Form Vibrator
- Improved Emitter-Base Junction with In_2O_3 in Dielectric-Base Transistor
- Growth of Epitaxial CeO_2 Films on (1012) Sapphire by Halide Source Plasma Enhanced Chemical Vapor Deposition
- The Double-Sided Rugged Poly Si (DSR) Technology for High Density DRAMs
- Adaptive Early Packet Discarding Scheme to Improve Network Delay Characteristics of Real-Time Flows(Network)
- Electrical and Crystallographic Properties of Sputtered-Pb(Zr,Ti)O_3 Films Treated by Rapid Thermal Annealing
- New TCP Congestion Control Schemes for Multimodal Mobile Hosts(Terrestrial Radio Communications)
- Decentralized access point selection scheme considering communication characteristics for heterogeneous wireless LANs (情報ネットワーク)
- Energy Saving Scheme with an Extra Active Period for LAN Switches
- Comparative Evaluation of Photonic ATM Switch Architectures
- Spectroscopic Evaluation on Photosensitive Langmuir Films Using Multichannel Spectrophotometer : Techniques, Instrumentations and Measurement
- RookNet: A Switching Network for High Speed Communication (Special Issue on Photonic Switching Technologies)
- Decentralized Access Point Selection Architecture for Wireless LANs(Network Management/Operation)
- Unfair and Inefficient Share of Wireless LAN Resource among Uplink and Downlink Data Traffic and Its Solution(Wireless Communication Technologies)
- Boron and Phosphorus Jon Emissions from a Cu-P-Pt-B Liquid Metal Ion Source
- Mass and Energy Analyses of Gallium-Indium Liquid-Metal-Ion Sources
- Development of Phosphorus Liquid-Metal-Ion Source
- Parallel Transferable Uniform Multi-Round Algorithm for Minimizing Makespan
- Measurement of a Three-Dimensional Distribution of Microwave Electric Field in Electron Cyclotron Resonance Plasmas
- Node Degree Based Routing Metric for Traffic Load Distribution in the Internet