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A Bit and Bytes of Knowledge On How GigE Operates

Several technologies that transmit Ethernet at a speed of a gigabit per second is known as GigE in full gigabit Ethernet. There is a specification for gigabit links of half duplex to be connected although the normal links are full duplex. They have bandwidths of Ethernet that can be as high up to ten gigabit. Therefore higher speeds of internet than ever experienced before.

Ethernet protocol that was available before is the basis of gigabit Ethernet just speeds increased like ten times more. These speeds have widened options available by internet and made these options cheaper. For these speeds to be increased changes here and there have been made on Ethernets physical interface.

Ethernet and gigabit Ethernet look similar the difference being the area of the data link upwards. They have merged two different technologies known as IEEE 802.3 and another known as ANSI X3T11. This has stabilized the resulting technology. This merge was necessary so as to improve and upgrade the technology that existed before but was at much slower speed.

Use of balanced copper cables, twisted pair cables and optical fiber by gigabit Ethernet has five different physical layer of standards. The afore mentioned IEEE 802.3z type of standards has an inclusion of various types of interface to transmit over single mode fiber, multi mode fiber and also balanced copper cabling. The standards employ some sort of encoding that inflates the line rates and ensures the DC signal is balanced. The encoding scheme employed by IEEE 802.3ab is different this is to keep the symbol rate as low as it can get at the same time it allows for transmitting of the same over some twisted pair.

The transmitting of gigabit Ethernet over fiber is known as 1000BASE X with different options. 1000BASE SX a fiber optic operation that is applied over multi fibers works over much longer distances. The 1000BASE CX is over cabling of two axials. 1000BASE LX employs long wavelength laser and 1000BASE LX 10 which is same as 1000BASE LX the difference being that it can achieve a longer distance. The rest are 1000BASE T, 1000BASE ZX and 1000BASE BX10.

The standard referred to as 1000BASE T is one that uses gigabit Ethernet over copper wiring. One of these standards can have a length of a hundred meters maximum of network segment and has to have auto negotiation. Auto negotiation is the negotiation of a clock source whereby one shall be the master and the other the slave.

There is a standard that is referred to as 10 gigabit Ethernet also referred to as 10GBASE T that is set to provide speeds as fast as 10 billion bits in a single second. Other than being really fast it is also less expensive while providing technology that is consistent. It employs the use of optical fiber and is set to replace networks that use SONET multiplexers and ATM switches. In addition to that it also employs the use of IEEE802.3 and will interconnect LAN (Local Area network), WAN (Wide Area Network) and MAN (Metropolitan Area Network) it will also have the capability to support long distances of up to forty km on a single mode fiber.

Ethernet has greatly improved over time and provides efficient and affordable connection. This has been achieved by upgrades and some changes. It was created with a main goal and this was to increase speeds and yet not make customers stop use of network equipment they already had.