802.3ae

The IEEE name for its 10 Gigabit Ethernet standard, a supplement to the 802.3 standard that defines Ethernet. The 10 Gigabit Ethernet version of Ethernet operates in full-duplex mode only and supports data transfer rates of 10 gigabits per second for distances up to 300 meters on multimode fiber optic cables and up to 40 kilometers on single mode fiber optic cables.

10 Gigabit Ethernet is often abbreviated 10GbE. The IEEE formally ratified the standard on 12 June, 2002.

Also see the Ethernet Designations chart in the Quick Reference section of Webopedia.