-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On Behalf Of Randy Presuhn
Sent: Wednesday, August 31, 2011 11:31 AM
To: IETF discussion list
Subject: Re: 2119bis
This sentence is self-contradictory. "SHOULD" is, by definition, not
"OPTIONAL".
I disagree with the claim that there is a contradiction there, but I also
think
"IGNORE" is incorrect.
What was said is "SHOULD = OPTION", but RFC2119 says "OPTIONAL" is the same as
"MAY". That's the contradiction.
The only difference between "SHOULD" and "MAY" is that the implementor /
deployer needs a good excuse to not implement / employ a "SHOULD."
That's not the same as "IGNORE".
But that's a big difference. I think some people are being cavalier about the
"good excuse" part, and that's where I have a problem. RFC2119 is not unclear
on this point.
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