Re: Ethernet Doomed?

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#135

From: ucbvaxworks
Date: Mon, 15 Mar 1982 20:49

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>From BILLW@Sri-Kl Thu Mar 11 15:47:10 1982
You are also wrong.  An ethernet tranceiver is a far cry from a
modem, and is a lot simpler, but it isnt quite pure digital.
I believe that EtherNet does colision detect by measuring the
DC level on the coax - If one person is using it, the dc level
is about X.  If two people are trying to transmit at once,
it deviates from X.  A tranceiver has to be pretty sneaky
since X will vary depending on how far away from this tranceiver
the station that is transmitting is. A person from MIT recently
gave a talk at Stanford advocating ringnets over ethernets for
this (simplified analog electronics), amoung other reasons...

Bill W

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Path: arc1-ca.pugleaf.net!utzoo!decvax!ucbvax!works
From: ucbvax!works
Newsgroups: fa.works
Subject: Re: Ethernet Doomed?
Date: Mon, 15 Mar 1982 20:49:18 +0000
Message-ID: <anews.Aucbvax.6524>