University of New South Wales
Ethernet is one of the first computer networking technologies for which a standard has been developed to improve its energy efficiency. The energy efficient Ethernet (IEEE 802.3az) standard was approved in 2010 and is expected to enable savings of several Terawatt Hours (TWh) per year. As switches that implement the standard become available and are deployed, it is important to understand how their energy consumption depends on the number of active ports and their traffic. In this paper the energy consumption of small Energy Efficient Ethernet switches is analyzed in several experiments and based on the results a model for the energy consumption of Energy Efficient Ethernet switches is proposed.