Gigabit Ethernet

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Related to Gigabit Ethernet: 10 gigabit Ethernet, Gigabit Ethernet switch

Gigabit Ethernet

An Ethernet standard that transmits at 1 gigabit per second. Gigabit Ethernet (GbE, GE) connects PCs and servers in local networks and is commonly employed along with a mix of 10/100 Mbps devices. For example, a 10/100/1000 switch supports all three rates and adjusts to the highest speed between sender and receiver. All new computers and most network devices support Gigabit Ethernet.

GbE transmits full duplex from point to point using Ethernet switches and half duplex in a shared Ethernet hub environment (see CSMA/CD).

IEEE 1000Base-T (802.3ab)
The 1997 standard (IEEE 802.3z) required multimode fiber or shielded copper cables, but two years later, 1000Base-T enabled GbE to run on ordinary Cat 5 copper and be readily used in existing networks. Four wire pairs each transmit 250 Mbps in both directions.

TIA 1000Base-TX
A competing standard created by the TIA that never caught on used simpler electronics but required Cat 6 cabling. However, 1000Base-T is often erroneously labeled 1000Base-TX. See Ethernet and 10 Gigabit Ethernet.

COPPER CABLEEncoding   Cable  RangeStandard     Method     Type  (meters)1000Base-T802.3ab      4D-PAM5  Cat5-UTP  100

   1000Base-TXTIA/EIA-854  4D-PAM5  Cat6-UTP  100

   1000Base-CX802.3z       8B/10B   Cat1-STP   25

   OPTICAL CABLE (8B/10B Encoding)Fiber            ModalDiameter       Bandwidth   Range(microns)      (MHz-km)   (meters)1000Base-SX 802.3z
   62.5 multimode   160        220
   62.5 multimode   200        275
   50 multimode     400        500
   50 multimode     500        550

   62.5 multimode   500        550
   50 multimode     400        500
   50 multimode     500        550
    9 singlemode    ---       5000
References in periodicals archive ?
Today, many of the world's largest Gigabit Ethernet and 10 Gigabit Ethernet networks depend on Force10 Networks.
To help ensure consistent network security, high availability, and quality of service with Gigabit Ethernet performance, blade server vendors rely on integrated blade switches, which provide network services from the server edge out to the clients at the network edge.
Vitesse's Gigabit Ethernet wireless broadband gateway solution combines Intoto's iGateway RGS Standard -- a complete software platform with network access, wireless LAN security, and firewall; and Ralink Technology's wireless LAN chipset, the RT2600 which supports all standard-based features and requirements such as security, quality of service and international regulatory, thus providing end-users with higher performance than legacy devices.
The Force10 TeraScale E600 connects the data center via 10 Gigabit Ethernet connections to True's other facilities, Internet Exchanges and global network providers.
Vitesse's Gigabit Ethernet technology is one of the most advanced high-speed interface solutions in the market, making it an ideal choice for enabling our Office-in-a-Box SMB networking platform," said Lynelle McKay, vice president and general manager of Freescale's Digital Systems Division.
At 300 nanoseconds, the Force10 S2410 delivers the industry's lowest Ethernet switching latency and places 10 Gigabit Ethernet on par with other cluster interconnect solutions, eliminating the need to integrate Infiniband and other proprietary solutions into the network.
Adoption of Gigabit Ethernet has been driven by customer requirements and technology capabilities, largely fueled by the so-called Triple Play and the increasing bandwidth requirements associated with converged data, voice and video applications.
According to Dell'Oro Group, Force10 was also the second largest modular 10 Gigabit Ethernet vendor in the industry for the fourth quarter of 2005, marking the second consecutive quarter Force10 held the position.
As system level density continues to increase, the effectiveness of 10 Gigabit Ethernet for upstream connectivity decreases, creating the potential for network bottlenecks," said Goergen, one of the drafters of the 10 Gigabit Ethernet standard and a key driver of the 100 Gigabit LAN/WAN movement in the IEEE and the Optical Internetworking Forum (OIF).
NASDAQ:VTSS), the market leader in Gigabit Ethernet ICs, today announced the production availability of its Layer 2 Gigabit Ethernet product family the VSC737x, further extending its leadership in the managed, Layer 2 Gigabit Ethernet switching market.
Force10 Networks increased its 10 Gigabit Ethernet port shipments by 280 percent in the third quarter of 2005 over the same period a year ago, growing at a rate nearly twice as fast as its nearest competitor, according to Dell'Oro Group's most recent Ethernet switch survey.