Actual Original Sketch of the Ethernet Concept

By Bob Metcalfe

The following is a composite of sketches of Ethernet drawn by Bob Metcalfe while he was a researcher at Xerox PARC and included in the first internal Xerox memo about Ethernet. This sketch comes courtesy of Palo Alto Research Center.

The sketch below is included in a memo titled:

MAY 22, 1973



TO: ALTO ALOHA DISTRIUBTION

FROM: BOB METCALFE

SUBJECT: ETHER ACQUISITION HERE IS SOME ROUGH STUFF ON THE ALTO ALOHA NETWORK.