100 Gigabit Ethernet

100 Gigabit Ethernet (or 100GbE) and 40 Gigabit Ethernet (or 40GbE) are high-speed computer network standards developed by the Institute of Electrical and Electronics Engineers (IEEE). They support sending Ethernet frames at 40 and 100 gigabits per second over multiple 10 Gbit/s or 25 Gbit/s lanes. Previously, the fastest published Ethernet standard was 10 Gigabit Ethernet. They were first studied in November 2007, proposed as IEEE 802.3ba in 2008, and ratified in June 2010. Another variant, 802.3bg, was added in March 2011.

IEEE 802.3ba (also known by its proposed standard name IEEE P802.3ba) is an IEEE standard of the 802.3 family of data link layer standards for Ethernet LAN and WAN applications, whose objective is to support speeds faster than 10 gigabits per second (Gbit/s). The standard supports 40 Gbit/s and 100 Gbit/s transfer rates.