A recent white paper from Microsemi succinctly explains the differences between the company's proprietary Energy Efficient Power over Ethernet (EEPoE) technology, which takes a multi-pronged approach to reducing power losses throughout PoE power chain elements, versus Energy Efficient Ethernet (EEE) technology, as specified per the IEEE 802.3az-2010 standard.
Separately, a white paper recently produced by the Ethernet Alliance describes the benefits of employing EEE as specified in IEEE802.3az-2010 and EEPoE as allowed by the IEEE802.3at-2009 standard to reduce the energy consumption of PoE switches. The Ethernet Alliance estimates that total energy savings from the combination of EEE and EEPoE technologies approaches 3.13W per link.
Download the Microsemi white paper here.
Download the Ethernet Alliance white paper here.
Related story:IEEE 802.3az Energy Efficient Ethernet will help 10GBase-T deployment