However, Gigabit Ethernet is suited for applications that need high Internet speeds. Of these, the Fast Ethernet type is suited for small business or home applications, which require no more than 100 Mbps speed.

Speed: As discussed in the introduction –Fast Ethernet has a speed of 100 Mbps, whereas Gigabit Ethernet has a speed of 1000 Mbps, which is exactly 10 times faster than the Fast Ethernet.

Of these 1000 Base-SX and 1000-Base LX use fiber optics cable and 1000Base –CX uses 2 pairs of STP and 1000Base-T uses 4 pairs of STP. There are different layer standards of GE such as 1000Base – SX, 1000Base-LX, 1000Base- CX, and 1000Base-T. It was first introduced over fiber optic cables in 1999 and twisted pair cables were introduced later.

It supports full-duplex and half-duplex modes and is covered under the framework of 803.2. It is today one of the widely used Ethernet types.

Gigabit Ethernet (GE): Introduced in 1999, Gigabit Ethernet has a transmission speed of 1000 Mbps.

Autonegotiation was introduced along with FE, which enables two devices to transmit data through a commonly shared connection. FE supports both - full-duplex and half-duplex modes. The term 4 or X refers to the line code signal used. In this, T stands for twisted pair cable, and F stands for fiber – both referring to the type of cable used for signal carrying. The “100” is common to all and it indicates the transmission speed of the network, which is 100 Mbps. Covered under 802.3u standard, a few Fast Ethernet types include 100 Base-FX, 100 Base-T4, and 100 Base-TX.

Fast Ethernet (FE): Introduced in 1995, Fast Ethernet has a transmission speed of 100 Mbps.

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