See 10 Gigabit Ethernet in Computer
An Ethernet standard that transmits at 10 Gbps. Introduced in 2002 and abbreviated "10 GbE," "10GE" or "10G Ethernet," it extended the familiar and ubiquitous Ethernet used in local area networks (LANs) to high-speed storage networks (SANs) as well as backbones in large enterprise networks and wide area and metropolitan area networks. See LAN, SAN, WAN and MAN.
Full Duplex and No Collisions
10G Ethernet works only in full-duplex mode and does not support CSMA/CD, the common Ethernet collision method used to gain access to the physical medium. A "WAN interface sublayer" (WIS) makes 10G Ethernet compatible with the SONET transport at 10 Gbps (OC-192). See SONET.
Fiber or Copper
The 10GBASE-LX4 version (see below) carries four wavelengths of light on one pair of fibers. In 2004, 10G Ethernet over copper wire was introduced. Using four twinaxial cables, the copper version was designed for short distances between switches and storage devices in the datacenter. See Ethernet and FCoE.
10G ETHERNET OVER FIBER (IEEE 802.3ae) Dark Fiber or Fiber Maximum Version SONET Type Distance 10GBASE-SR Fiber MMF/850 nm 65 meters 10GBASE-LRM Fiber MMF/1310 nm 220 meters 10GBASE-LRM Fiber MMF/850 nm 260 meters 10GBASE-LX4 Fiber MMF/1310 nm 300 meters 10GBASE-LR Fiber SMF/1310 nm 10 kilometers 10GBASE-ER Fiber SMF/1550 nm 40 kilometers 10GBASE-ZR** Fiber SMF/1550 nm 80 kilometers 10GBASE-LX4 Fiber SMF/1310 nm 10 kilometers 10GBASE-SW SONET MMF/850 nm 65 meters 10GBASE-LW SONET SMF/1310 nm 10 kilometers 10GBASE-EW SONET SMF/1550 nm 40 kilometers MMF = multimode fiber SMF = singlemode fiber ** = non standard 10G ETHERNET OVER COPPER (IEEE 802.3ak) Version Use Cable Max. Distance 10GBASE-CX4 Datacenter Twinax 15 meters