کاهش مصرف توان در سوئیچ‌های Openflow با روش تنظیم فرکانس

نوع مقاله : علمی-پژوهشی

نویسنده

دانشکده فنی و مهندسی- دانشگاه شهرکرد

چکیده

با توجه به افزایش نقش صنایع مرتبط با فناوری اطلاعات و ارتباطات در تولید گازهای گلخانه‌ای، مدیریت مصرف توان تجهیزات سخت‌افزاری در بستر شبکه‌های انتقال داده بسیار موردتوجه قرارگرفته است. میزان مصرف توان تراشه‌های استفاده‌شده در این تجهیزات به‌طور مستقیم با فرکانس کار آن تراشه‌ها مرتبط است. ازاین‌رو یکی از راهکارهای کاهش مصرف توان این وسایل، تنظیم فرکانس کار آن‌ها بر اساس بار ترافیک شبکه می‌باشد. در این مقاله، چنین راهکاری به‌صورت یک مسئله بهینه‌سازی MILP در چارچوب معماری شبکه SDN و برای مجموعه‌ای متشکل از سوئیچ‌های Openflow که بر روی FPGA پیاده‌سازی شده‌اند، اعمال‌شده است. برای این منظور ابتدا با انجام آزمایش‌های میدانی نمودار مصرف توان یک سوئیچ برحسب نرخ ترافیک و فرکانس کار آن استخراج گردیده است. سپس با حل مسئله بهینه‌سازی ارائه‌شده بر روی یک شبکه زیرساخت با داده‌های واقعی استخراج‌شده از SNDlib و مقایسه نتایج حاصل با دو روش متداول دیگر در این حوزه، نشان داده‌شده است که روش پیشنهادی بیش از 37% مصرف توان را کاهش می‌دهد.

کلیدواژه‌ها

عنوان مقاله [English]

Frequency scaling approach to reduce power consumption of Openflow switches

نویسنده [English]

  • A. Ghiasian
Faculty of Technology and Engineering, Shahrekord University, Shahrekord, Iran
چکیده [English]

The significant impact of information and communication technology (ICT) on Greenhouse Gas emissions has caused a considerable research interest in energy management of network devices in recent years. As the amount of power consumption in routers and switches is a function of their working frequency, one approach to energy saving is to adapt working frequency of such devices dynamically and proportional to their traffic load. This paper describes this approach in Software Defined Networking (SDN) framework by proposing a Mixed Integer Linear Programming (MILP) formulation for a network of FPGA based interconnected Openflow switches. The prerequisite information of switch power profile is obtained by running experimental tests. The proposed method is applied to an infrastructural dataset extracted from the standard SNDlib database. Simulation results show that frequency scaling technique reduces power consumption by more than 37% in comparison to other well-known power-saving approaches.

کلیدواژه‌ها [English]

  • Power
  • energy
  • openflow
  • switch
  • router
  • software defined networking
  • FPGA
  • computer network
  • frequency scaling

مراجع

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