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Re: [DNSOP] Fwd: New Version Notification - draft-ietf-dnsop-avoid-fragmentation-13.txt

Tim Wicinski <tjw.ietf@gmail.com> Mon, 24 July 2023 04:54 UTC

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From: Tim Wicinski <tjw.ietf@gmail.com>
Date: Sun, 23 Jul 2023 21:54:40 -0700
Message-ID: <CADyWQ+E18SFWcKj_AANXEVBZSU1zR2yGui_waVN-y4sp327Ygw@mail.gmail.com>
To: Peter van Dijk <peter.van.dijk@powerdns.com>
Cc: dnsop <dnsop@ietf.org>
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Subject: Re: [DNSOP] Fwd: New Version Notification - draft-ietf-dnsop-avoid-fragmentation-13.txt
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Peter

On Mon, Jul 17, 2023 at 3:37 AM Peter van Dijk <peter.van.dijk@powerdns.com>
wrote:

> On Wed, 2023-07-05 at 18:51 -0400, Tim Wicinski wrote:
>
> All
>
> The authors of draft-ietf-dnsop-avoid-fragmentation worked with different
> implementers to expand upon the index of Known Implementations, and what
> they implement specifically.
>
> The chairs would like to have a one week follow up Working Group Last Call
> comment period. We are looking for substantive comments regarding the
> changes made, and if they are enough to address concerns raised.
>
>
> As Vladimir also said in his dnsdir review, this document is in way better
> shape than it was.
>
> I do see one obstacle.
>
> In section 3.1, the draft says:
>
> > 2. UDP responders are RECOMMENDED to set IP "Don't Fragment flag (DF)
> bit" [RFC0791 <https://www.rfc-editor.org/rfc/rfc791>] on IPv4.
>
> Then in Appendix D (Known Implementations), all implementations have
> indicated they do *not* set the DF bit. It seems wrong to RECOMMEND
> something, especially in a document targeted for BCP, that nobody is doing.
>
>
This is a good point, and something we need to address.
I've made a note in the chairs slides for tomorrow, and will talk to the
authors.



This comment period will end Wednesday July 12, 2023.   If there
> are substantive comments raised, we can address these during the meeting.
>
> A friendly request: please indicate Last Calls in the Subject! I missed
> this one until now.
>
>
>
Yes and this is my fault.  Apologies.   I am chastised.

Tim

Kind regards,
> --
> Peter van Dijk
> PowerDNS.COM BV - https://www.powerdns.com/
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