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From: MAP@lcs.mit.edu (Michael A. Patton)
Newsgroups: comp.dcom.sys.cisco
Subject: Appliques can fail .....
Message-ID: <32719@boulder.Colorado.EDU>
Date: 27 Feb 91 15:01:34 GMT
Sender: daemon@boulder.Colorado.EDU
Lines: 31


   From: Daniel Karrenberg <Daniel.Karrenberg@cwi.nl>
   Date: Wed, 27 Feb 91 10:52:54 +0100

After discussing:
   Appliques can fail ... and it can be hard to detect.

Concludes with:

	   3) Problems like this can only be found by both
	      ends testing synchroneously with an open telephone
	      connection to discuss things as they go.

Dave Clark, years ago (circa 1980), made the observation that "the
most powerful tool when debugging a network is another network that's
still working."  This comment was made to two undergrads trying to get
the first IP bits between MIT-MULTICS and MIT-CSR (Gee, it must be
ancient history, no domains :-).  The two undergrads were occasionally
hollering down the hall and Dave came up with this observation when
suggesting that they use an open telephone connection.  So you don't
have to be in separate countries for it to be useful!  I guess it's
just more obvious then.

            __
  /|  /|  /|  \         Michael A. Patton, Network Manager
 / | / | /_|__/         Laboratory for Computer Science
/  |/  |/  |atton       Massachusetts Institute of Technology

Disclaimer: The opinions expressed above are a figment of the phosphor
on your screen and do not represent the views of MIT, LCS, or MAP. :-)
And even then, they're only my recollection of the event! :-)