Technical Definitions: What is 100BaseVG? 100BaseVG Definition.

Free Definitions: Networking: General

100BaseVG Definition

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 standardized 100BaseVG.  The rest is history. (1998-06-30)

Definition Provided By Denis Howe