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From: krowitz@RICHTER.MIT.EDU (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Re:  AT Ethernet card diagnostic
Message-ID: <9007201838.AA20354@richter.mit.edu>
Date: 20 Jul 90 18:38:13 GMT
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Colin is correct about the need for a 2nd machine to run
the full set of DEX network diagnostics. This is true of
Apollo token ring cards (and probably the IBM 802.5 cards
as well) in addition to ethernet cards. However, both the
ATR and ETH cards have built-in loopbacks, and a lot of
the testing of the internal circuits can be done with a
single card. Most failures that are not network failures
(loose cables, bad thick ethernet transceivers, etc.) are
caught by the loop back mode diagnostics --- but not
always -:)


 -- David Krowitz

krowitz@richter.mit.edu   (18.83.0.109)
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