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100BaseFX

Last updated: 1998-03-23

100BaseT

Any of several Fast Ethernet 100 MBps CSMA/CD standards for twisted pair cables, including: 100BaseTx (100 Mbps over two-pair Cat5 or better cable), 100BaseT4 (100 Mbps over four-pair Cat3 or better cable), 100BaseT2 (in committee; 100 Mbps over two-pair Cat3 or better cable). All are standards (or planned standards) under IEEE 802.3.

Last updated: 1997-01-07

100BaseTX

<networking>

The predominant form of Fast Ethernet. 100BaseTX runs over two pairs of wires in category 5 cable.

Last updated: 1998-06-30

100BaseVG

<networking>

A 100 MBps Ethernet standard specified to run over four pairs of category 3 UTP wires (known as voice grade, hence the "VG"). It is also called 100VG-AnyLAN because it was defined to carry both Ethernet and token ring frame types.

100BaseVG was originally proposed by Hewlett-Packard, ratified by the ISO in 1995 and practically extinct by 1998.

100BaseVG started in the IEEE 802.3u committee as Fast Ethernet. One faction wanted to keep CSMA/CD in order to keep it pure Ethernet, even though the collision domain problem limited the distances to one tenth that of 10baseT. Another faction wanted to change to a polling architecture from the hub (they called it "demand priority") in order to maintain the 10baseT distances, and also to make it a deterministic protocol. The CSMA/CD crowd said, "This is 802.3 -- the Ethernet committee. If you guys want to make a different protocol, form your own committee". The IEEE 802.12 committee was thus formed and standardised 100BaseVG. The rest is history.

Last updated: 1998-06-30

100VG-AnyLAN

100BaseVG

10base2

<networking>

(Or "cheapernet") The variant of Ethernet that uses thin coaxial cable (RG-58 or similar), as opposed to 10base5 cable.

The "10" means 10 Mbps, "base" means "baseband" as opposed to radio frequency and "2" means a maximum single cable length of 200m.

Last updated: 1995-11-14

10base5

<networking>

An Ethernet network cabling specification operating at ten Mbps, "baseband" (as opposed to radio frequency), and with a maximum single cable length of 500 metres. This is normally carried on RG8 cable.

Compare 10base2, 10baseT.

Last updated: 2002-06-17

10baseT

<networking>

A variant of Ethernet which allows stations to be attached via twisted pair cable.

Last updated: 1995-01-24

Nearby terms:

0/1 knapsack problem ♦ 1 ♦ 100BaseFX ♦ 100BaseT ♦ 100BaseTX ♦ 100BaseVG

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