Re: Checksums


Philip Prindeville [CC] (philipp@Larry.McRCIM.McGill.EDU)
Sun, 3 Apr 88 15:58:59 EDT


[ My apologies for following this up several days late. I am only now
  starting to catch up on my mail. ]

It seems to me that a lot of the discussion over the last couple of weeks
has been about designing an error detection that does protocol verification
(or aids in debugging, anyway) by doing index-off-by-one detection. Now
this is a neat idea (on paper), but I wouldn't want to implement it (at
least not entirely in software). Or if I did, I would do it in a protocol
analyzer, not in a production implementation...

I still believe the greatest aid in finding index-off-by-one and similiar
problems is not done by building elaborate debugging into an implementation
in an on-line environment (eg. the Internet), but in the TCP/IP bake-offs.
I just wish more implementors would perform complete tests (options and
everything) against a real variety of implementations before going to market.

"Do I work against a Sun? Check. Do I work against a Wollongong? Check..."

In a perfect world...

-Philip



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