电子学报 ›› 2021, Vol. 49 ›› Issue (9): 1830-1839.DOI: 10.12263/DXZB.20200681

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节能以太网的节能策略综述

蒋万春, 廖凯琴   

  1. 中南大学计算机学院,湖南 长沙 410083
  • 收稿日期:2020-07-09 修回日期:2020-11-18 出版日期:2021-09-25 发布日期:2021-09-25
  • 作者简介:蒋万春 男,1987年生于湖南永州.现为中南大学计算机学院副教授、博士生导师.主要研究方向为网络与分布式计算、云计算、拥塞控制、以太网.E‑mail: jiangwc@csu.edu.cn
    廖凯琴 女,1995年生于江西宜春.现为中南大学计算机学院硕士研究生.主要研究方向为超高速节能以太网.E‑mail: kaiqinliao@csu.edu.cn
  • 基金资助:
    湖南省自然科学基金青年项目(2020JJ5768);中南大学创新驱动计划青年项目(2020CX033);国家自然科学基金面上项目(61972421);中南大学研究生自主探索创新项目(2020zzts601)

Survey on the Strategies of Energy Efficient Ethernet

Wan‑chun JIANG, Kai‑qin LIAO   

  1. School of Computer Science and Engineering,Central South University,Changsha,Hunan 410083,China
  • Received:2020-07-09 Revised:2020-11-18 Online:2021-09-25 Published:2021-09-25

摘要:

节能以太网是解决当前以太网中日益严峻的能耗问题的标准方案.在节能以太网中,节能策略及其参数配置决定了节能以太网设备进入和退出低功耗状态的时机,是影响数据帧延时和节能效果的关键.近年来,国内外开展了大量关于节能以太网的节能策略研究.本文综述了1/10Gbps和40/100Gbps节能以太网的节能策略.首先从策略设计和建模分析的角度总结了1/10Gbps节能以太网的节能策略相关研究.然后,详细描述了40/100Gbps节能以太网的主要节能策略及其核心设计思想.接着,对比和分析了各种节能策略在节能状态选择、节能时长以及状态转换周期上的优缺点.最后,指出了节能策略在网络流量分布、负载状态以及用户延时需求上所面临的机遇与挑战.

关键词: 以太网标准, 节能以太网, 节能策略, 低功耗状态, M/G/1模型, 以太网能耗, 网络负载

Abstract:

The energy efficient ethernet (EEE) is a current standard that addresses the increasingly severe problem of large energy consumption in Ethernet. The strategies of EEE and their parameter configurations determine the time of EEE entering and the exiting low power idle states, which is crucial to both delay and energy consumption. Recent years, a large number of energy-saving strategies of EEE have been studied at home and abroad. This paper surveys the energy-saving strategies of 1/10Gbps and 40/100Gbps EEE. At first, it analyzes the strategies of 1/10Gbps EEE from the perspective of strategy design and modeling analysis. Subsequently, the main ideas of 40/100Gbps EEE strategies are presented. As a step further, the advantages and disadvantages of various EEE strategies in state selection, energy-saving duration, and state transition period are compared and analyzed. Finally, the challenges and opportunities faced by EEE strategies in network traffic distribution, load status, and user latency requirements are discussed.

Key words: ethernet standards, EEE, energy saving strategy, low power idle state, M/G/1 model, energy consumption of ethernet, traffic load

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