What is Gigabit Ethernet?
Gigabit Ethernet is a network technology for data exchange at speeds of up to 1 gigabite per second (GBPS). Several types of optical cables from optical fibers and copper can be used to connect these devices. Specific lasers and optical cables with one mode can transmit high -speed data for miles (kilometers) over one cable. Gigabit Ethernet servers often use the router, switches and storage network to connect. It is also often used for high -speed connections between buildings on corporate campuses. Originally, the technology was only optically, it was upgraded in 1999 to include the standard of copper twisted-pages 1000Base-T. This allows the use of Gigabita cables with the existing American National Standards Institute (CAT). Many gigabit routers, switches and network interface cards can automatically negotiate the connection speed. Gigabit Devics can use this feature to operate with slower 100 Mbps or 10 Mbps interfaces instead of replacing existing infrastructure.
Most standards for Gigabit Ethernet have been developed by an institute of electric and electronic engineers (IEEE). Standard 1000Base-T created IEEE uses all four pairs of copper twisted in cat 5 or better cable. The competitive standard was designed at approximately the same time by the Association of Telecommunication Industry (TIA). This less popular specification, called 1000base-TX, uses only two twisted pairs, but requires CAT 6 or better cable. Some confusion and marketing of the supplier have led to the fact that the 1000 base-T device was promoted incorrectly as 1000Base-TX.
Standards 1000Base-T and 1000Base-TX can use cables up to 328 feet (100 meters) long. Earlier unpopular copper specifications called 1000Base-CX use a balanced astilled cable. Its disposable structural limits of the twisted steam reduce the length of the cable to 82 feet (25 meters).
for Ethernet based on OptiThere are four IEEE standards. 1000Base-SX can communicate with multi-formal fiber for 721-104 feet (220 to 550 meters). 1000Base-LX can use multiple mode fiber for up to 1,804 feet (550 meters) or fibers with one mode for 3.1 million (5 kilometers). 1000BASE-LX10 and 1000BASE-BX10 can use a thread with one mode with 1,310 to 1,490 nanometer lasers up to 6.2 million (10 kilometers). An informal standard called 1000base-ZX can reach up to 43 miles (70 kilometers) with a single-mode fiber and 1,550 nanometer laser.
Some Gigabit network cards provide great flexibility by allowing the Gigabit (GBIC) converter to be connected. It is a device with a hot-pluggage with a network transmitter and a cable interface specific to a specific 1 Gbps technology. GBICs exist for several FIBRE Channel technologies as well as copper and optical gigabit Ethernet. The GBIC -based deposit card can replace the technician with a link without turning on or outFiguring a running system. GBIC copper gigabit ethernet GBIC can be disconnected from the network card and, for example, replace 1 GBPS FIBRE Channel GBIC.
During the 2000 Gigabit technology technology, it has evolved to include even faster data transfer speeds. 10 Gigabit Ethernet was first introduced in 2002. Work began on standards for 40 and 100 Gigabit Ethernet in 2007, which were eventually approved by IEEE in 2010. These technologies usually require cable upgrades from the existing 100 MBP or 1 GBPS infrastructure to suit higher speeds.