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[DNSOP] Re: [v6ops] Re: Re: Fwd: New Version Notification - draft-ietf-dnsop-avoid-fragmentation-18.txt

Paul Wouters <paul@nohats.ca> Fri, 05 July 2024 14:09 UTC

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Date: Fri, 05 Jul 2024 10:09:13 -0400
From: Paul Wouters <paul@nohats.ca>
To: Petr Špaček <pspacek@isc.org>
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Subject: [DNSOP] Re: [v6ops] Re: Re: Fwd: New Version Notification - draft-ietf-dnsop-avoid-fragmentation-18.txt
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On Fri, 5 Jul 2024, Petr Špaček wrote:

>>>  My interpretation is that it means "if you don't know any better use
>>>  1400", but RECOMMENDED is more concise.
>>
>>  I read RECOMMENDED as “don’t think you are smarter than the collective
>>  IETF”. Or maybe that’s just how I hope people will read it.
>>
>>  I think your interpretation is more like a MAY.
>
> Well there's no need to guess!
>
> https://datatracker.ietf.org/doc/html/rfc2119
>
> 3. SHOULD   This word, or the adjective "RECOMMENDED", mean that there
>    may exist valid reasons in particular circumstances to ignore a
>    particular item, but the full implications must be understood and
>    carefully weighed before choosing a different course.

That doesn't answer the question? It all depends where you put
the weight. Text surrounding the RECOMMENDED should clarify that.

Let's put it another way, if you are trying to say "if you don't know
any better use 1400", then wouldn't "MAY use 1400" cover that sentiment
as well?

I personally also find RECOMMENDED and SHOULD to be subtly different
myself :P

Either way, it seems more words would fix whatever option is picked to
clarify that option better.

Paul

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