3Mb Ethernet - test-drb@ccmp.vtda.org

22 Apr 2001

On Apr 22, 14:54, Brian Chase wrote:

...
  Under section 4 of the paper, it is explained that
3Mbps was used because
 of the nature of their minicomputers.  Some other sources around the web
 say that the first implementation done at PARC was done in 1973.  My guess
...
  is that around that time, most minicomputers
wouldn't be able to deal very
...
  well with a firehose of data streaming in at 10Mbps.

 The IEEE 802.3 standard didn't come about until a number of years later. 
1974-ish: Experimental Ethernet 3Mb/s
1980: DIX Ethernet 10Mb/s
1982: DIX Ethernet Version 2 10Mb/s
1983: IEEE 802.3 Ethernet 10Mb/s (10base5)
1985: IEEE 802.3a Thin Ethernet 10Mb/s (10base2)
1990: IEEE 802.3i 10baseT Ethernet
1995: IEEE 803.3u 100Mb/s Ethernet 100BaseTx, 100baseT4, 100baseFX
1998: IEEE 802.3z 1000Mb/s (Gigabit) Ethernet

-- 

Pete						Peter Turnbull
						Network Manager
						Dept. of Computer Science
						University of York