Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cwjcc!gatech!mcnc!thorin!brock!brock
From: brock@brock.cs.unc.edu (J. Dean Brock)
Newsgroups: comp.protocols.tcp-ip
Subject: Soderblom and token ring
Message-ID: <8124@thorin.cs.unc.edu>
Date: 14 May 89 16:33:30 GMT
Sender: news@thorin.cs.unc.edu
Lines: 14

There's a brief article (3 pages) by Olof Soderblom in the Winter 88
issue of Connect, "A 3Com Publication".  (Someone gave me a copy --
got no idea how one is usually obtained.)

I infer that he believes that any network based on "the technique of
arranging terminals in series around a closed transmission ring and
arbitrating access to the ring by circulating a message indicating
when it is free" (Sonderblom's words) relates to his patent.

He states that the token ring was conceived in 1967 and the first
token ring was the Svenska Handelsbanken (a Swedish bank) network
connecting 2,500 terminals at 500 branch office.  That ring
came operational in the early 1970's.  IBM was the prime network
contractor for the Svenska Handelsbanken network.