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旧尾家・塚本研究室です.尾家祐二 現・九州工業大学学長の情報は こちら.
   
研究業績


Dynamic Link Control with Changing Traffic for Power Saving
著者
  Yutaka Fukuda, Takeshi Ikenaga, Hitomi Tamura, Masato Uchida, Kenji Kawahara, and Yuji Oie
 
雑誌名/会議名
  The 34th IEEE Conference on Local Computer Networks (LCN) 2009 年 10 月
 
アブストラクト
  The scope of this proposal is greening technology in a network area. Our major purpose in this study is to develop a method for achieving power conservation with a network itself. One of the effective ways for power conservation is to have a network switch which can adapt its processing speed to arrival traffic rate just as Intel’s Speedstep technology [4], because existing switches fully work regardless of a traffic amount. We first confirm that whether the difference in transmission capacity influences the power consumption at switch, and show that a Giga bit Ethernet port consumes 2 or 3 W with an addition of a link. Therefore, we can conclude that the dynamic control for transmission capacity with traffic volume is one of the important and effective ways to reduce the power consumption in a network. Based on this consideration, we propose a scheme to achieve the dynamic control of the transmission capacity between switches in order to reduce the power consumption, based upon the change in traffic volume. In this context, Link Aggregation is used to dynamically and gradually control the transmission speed. As for the demo system, Ethernet Bonding (trunking) technology is used to form a single logical link. Two PCs, which emulate the network switch, dynamically control the number of links according with the changing arrival traffic. This demo is intended to explicitly show the possibility of power conservation with a network itself by adapting the transmission capacity to arrival traffic.
 
キーワード
  Green IT
 
記述言語
  English
 
 

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