Journal: Volume 21, No. 4, 2016
Pages: 28 – 33
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Evaluation of the effectiveness of energy efficient technologies implementation in computer networks

Serhii Nesterenko

Abstract

Actual scientific and technical problem, associated with evaluation of the effectiveness of new IEEE 802.3az energy efficient technology used in communication systems of computer networks, is considered. It is shown that evaluation of the effectiveness of energy efficient technologies in computer network is advisable to be carried out on the level of every port of its communications system. Mathematical models to calculate power consumption by communication device port, running on IEEE 802.3 and IEEE 802.3az standards, are developed. As models for calculation of port power consumption stochastic queuing models are used. Proposed models take into account the probability of channel being in active state (data transmission) and in pause state (no data transmission). The verification of models has confirmed the sufficient accuracy of the results for engineering calculations. Using the obtained models analytical dependences for calculating the cost-effectiveness of computer network upgrading to reduce energy consumption and to determine payback period for equipment modernization are offered

Keywords

IEEE 802.3az standard, mathematical model, computer network, energy consumption reducing

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Suggested citation

Nesterenko, S. (2016). Evaluation of the effectiveness of energy efficient technologies implementation in computer networks. Bulletin of Cherkasy State Technological University, 21(4), 28-33.