Re: [DNSOP] I-D Action: draft-ietf-dnsop-extended-error-06.txt

Hi,

Two comments:

   1. Maybe I'm confused but it seems to me that the RESPONSE-CODE field of
   12 bits plus the INFO-CODE field of 16 bits is 28 bits. So I don't
   understand the 2nd paragraph of Section 3.3 that talks about their
   concatenation fitting within 24 bits.
   2. On the code point space for INFO-CODE values, the maximum possible in
   16 bits is 65535, not 65536. I also don't understand the relatively small
   number space set aside for "first-come first-served". That policy only make
   sense to me when then is a large range of values available. If there is
   going to be a first-come first-served interval, I'd suggest that below. But
   I'd be just as happy to get rid of it and only have specification required
   and experimental/private. Generally speaking, error codes are things you
   want to understand so a minimum of specification required makes sense

   o  0 - 32767: Specification required.

   o  32768 - 65279: First come, first served.

   o  65280 - 65535: Experimental / Private use

Thanks,
Donald
===============================
 Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
 1424 Pro Shop Court, Davenport, FL 33896 USA
 d3e3e3@gmail.com

On Mon, Jul 8, 2019 at 10:53 AM <internet-drafts@ietf.org> wrote:

>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Domain Name System Operations WG of the
> IETF.
>
>         Title           : Extended DNS Errors
>         Authors         : Warren Kumari
>                           Evan Hunt
>                           Roy Arends
>                           Wes Hardaker
>                           David C Lawrence
>         Filename        : draft-ietf-dnsop-extended-error-06.txt
>         Pages           : 15
>         Date            : 2019-07-08
>
> Abstract:
>    This document defines an extensible method to return additional
>    information about the cause of DNS errors.  Though created primarily
>    to extend SERVFAIL to provide additional information about the cause
>    of DNS and DNSSEC failures, the Extended DNS Errors option defined in
>    this document allows all response types to contain extended error
>    information.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-dnsop-extended-error/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-dnsop-extended-error-06
> https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-extended-error-06
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-dnsop-extended-error-06
>
>
> Please note that it may take a couple of minutes from the time of
> submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
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