Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!BBN.COM!ddeutsch
From: ddeutsch@BBN.COM (Debbie Deutsch)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Error Control and ATM (was: TCP Fletcher Checksum Option)
Message-ID: <8912132300.AA16068@ucbvax.Berkeley.EDU>
Date: 13 Dec 89 16:11:56 GMT
References: <6830@shlump.nac.dec.com>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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We are planning to look at this problem here at BBN, as part of a
research project.  Our approach is to use checksums in a
(non-standard) adaptation layer to detect potential problems (e.g.
misordering of cells, missing cells, bit errors) and to signal any
problem to higher protocol(s), which can then decide whether
corrective action is necessary.  After all, the applications vary 
widely in their sensitivity to errors.

Of course, one of the central issues here is just what kind of errors
will be experienced, and what pattern they will follow.  Until we know
that, it will be hard to determine the best way to deal with errors.

Debbie