Wednesday, January 20, 2010

Ethernet Questions

1)  What is GbE?

Gigabit Ethernet (GbE or 1 GigE) is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second, as defined by the IEEE 802.3-2008 standard. Half-duplex gigabit links connected through hubs are allowed by the specification but in the marketplace full-duplex with switches are normal.

detail of Gigabit Ethernet

What is 10GbE?

The 10 Gigabit Ethernet or 10GE or 10GbE or 10 GigE standard was first published in 2002 as IEEE Std 802.3ae-2002 and is the fastest of the Ethernet standards. It defines a version of Ethernet with a nominal data rate of 10 Gbit/s, ten times as fast as Gigabit Ethernet.

detail of 10GbE

What is G.709 OTN?

ITU-T Recommendation G.709 "Interfaces for the optical transport network (OTN)" describes a means of communicating data over an optical network. It is a standardized method for transparent transport of services over optical wavelengths in DWDM systems. It also known as Optical Transport Hierarchy (OTH) standard.


detail of G.709 


What is Fibre Channel?

Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards (INCITS), an American National Standards Institute (ANSI)–accredited standards committee. It started use primarily in the supercomputer field, but has become the standard connection type for storage area networks (SAN) in enterprise storage. Despite its name, Fibre Channel signaling can run on both twisted pair copper wire and fiber-optic cables.

detail of Fibre_Channel





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