From: CSBVAX::MRGATE!@KL.SRI.Com:SKINNER@DREA-XX.ARPA@SMTP 14-SEP-1987 23:07 To: EVERHART Subj: SUMMARY - Thick to thin wire ethernet. Received: from DREA-XX.ARPA by KL.SRI.COM with TCP; Mon 14 Sep 87 13:21:13-PDT Date: Mon, 14 Sep 87 17:21:10 ADT From: Bruce Subject: SUMMARY - Thick to thin wire ethernet. To: info-vax@KL.SRI.COM Message-ID: <12334621795.12.SKINNER@DREA-XX.ARPA> Hello Folks, Several people requested that I post a summary of replies to my query on inexpensive thick to thin ethernet. Here goes . . . The following manufacturers of ethernet hardware were suggested: Hewlett-Packard Bridge Communications 2081 Stierlin Road Mountain View, California 94043 USA Phone: 415-969-4400 Micom-Interlan Inc. Cabletron Systems Inc. 155 Swanson Road P.O. Box 6257 Boxborough, Massachusetts 01719 East Rochester, N.H. 033867-6257 Phone: 617-263-9929 (603)332-9400 I haven't called these people myself for specific info yet, but I will be contacting them in the near future. The bulk of the replies were of the nature 'Buy a $10.00 type N to BNC Inline reducer. It ain't supported but it's cheap and works'. In many cases this will be a reasonable solution. One reply contained a handy formula for determining if you are exceeding the ethernet length limitation. It goes something like this: IF ((thick_length) + (3 * thin_length) .LT. 500M) THEN say "you should be ok" ELSE say "Noooo way Hose!" Alas, when I ran this code I got: $ run mirror_mirror_on_the_wall_who's_the_longest_one_of_all thick_length (in meters)?: 500 thin_length (in meters)?: 1 Noooo way Hose! $ Many thanks to all who replied. All replies were much appreciated. P.S. Bill Hancock gave a most humorous talk entitled "Understanding Ethernet" at Spring DECUS. He highly recommended a book on ethernet at the time. Anyone remember what it was? It's high time I did some reading on the subject. regards++ ------------------------------------------------------------------------ . Net Mail: SKINNER@DREA-XX.ARPA |\ ___| | \ Telephone: (902) 426-3100 Ext. 168 /O | | \ .___/ |____|___\ \ | Slow mail: Bruce S. Skinner \___________| Defence Research Establishment Atlantic (DREA) P.O. Box 1012 Dartmouth, Nova Scotia Canada B2Y 3Z7 -------