Hi,

That interpretation is correct.
I recall some discussion of this from IETF 122, which I agreed with.
When you have a new version posted, please ping me and I will see if I can
clear my discuss.

Regards,

OS

On Tue, Jun 3, 2025 at 7:17 PM Mahesh Jethanandani <[email protected]>
wrote:

> Correcting Orie’s email address.
>
> On Jun 3, 2025, at 1:24 PM, Mahesh Jethanandani <[email protected]>
> wrote:
>
> [Speaking as a contributor and adding Orie in case I might be misspeaking]
>
> On Jun 3, 2025, at 7:16 AM, Kent Watsen <[email protected]> wrote:
>
> NETMOD,
>
> We're past the confirmation period for this poll.
>
> One response came in - thanks Rob!  The good news is that his response
> didn't object to most (all but one) DISCUSS positions, which I think means
> (per the message below) that the others positions are now confirmed.  This
> leaves open only the one DISCUSS item that Rob objected to the position for.
>
>
> The question Orie asked was “What is unnecessary percent encoding”? I
> think an explanation, and some additional text in the draft, similar to
> what Rob gives (and I reproduce here) might go a long way to satisfy Orie's
> DISCUSS.
>
> My understanding of URIs is that some characters MUST be percent encoded,
> but also that some other characters that don’t need to be percent encoded
> may be percent encoded.  E.g., “Reserved characters that have no reserved
> purpose in a particular context may also be percent-encoded but are not
> semantically different from those that are not.” From
> https://en.wikipedia.org/wiki/Percent-encoding
>
> Hence, I interpret this text is that for normalization purposes, if the
> character can be represented without using percent encoding then it MUST
> use the non percent encoded form.  As such, I think that the exist text, or
> something like it, it probably useful and should be retained.
>
>
> Thanks
>
>
> Can folks please chime in on this thread so we can finally put this
> document behind us?
>
> Thank you!
>
> Kent
>
>
> On May 8, 2025, at 6:17 PM, Kent Watsen <[email protected]> wrote:
>
> Attention NETMOD WG,
>
> This email begins a two-week poll confirming the WG consensus for
> fourvopen issues DISCUSS items related to rfc6991-bis.  If no objections
> are received by May 22, the positions will be confirmed.
>
> Background:  During NETMOD 122, Mahesh presented open DISCUSS issues on
> the rfc6991-bis document.  Unfortunately, the discussion was incomplete. so
> this email presents the open DISCUSS issues again, with a default position
> for each.
>
> There are four open DISCUSS issues.  One from Erik and three from Orie.
>
>
>    1. Erik's DISCUSS  (regarding the "mac-address" typedef)
>    2. Orie's DISCUSS #1( Time)
>    3. Orie's DISCUSS #2 (URI Normalization)
>    4. Orie's DISCUSS #3 (Did you mean A-Labels?)
>
>
> Each of these DISCUSS issues are presented below.
>
>
>
>
>
> 1) Erik's DISCUSS  (regarding the "mac-address" typedef)
>
> Issues:
>  Regex used in ‘typedef mac-address’ is incorrect
> - it's an overloaded term
> - mac-address can vary from 16 to 64 bits (802.15.4), not just 48 bits
>
> Possible Solutions:
> a) Fix the regex to accommodate 16 and 64-bit
> - But there is a ‘phys-address’
> b) Clarify that ‘mac-address’ as defined applies to IEEE 802.3 and 802.11
> - Currently, we reference IEEE 802 (without any qualifiers)
>
> The poll conducted regarding option (b)
>
>  Can You Accept If We Just Clarify The Description Statement For
> Mac-Address?
>
> The results were:
>
> Good participation with majority Yes responses
>
> Any objections?
>
>
>
>
>
> 2) Orie's DISCUSS #1( Time)
>
> I suggest something like:
>
> RFC6021 defined the canonical format for date-and-time in a way that is
> not directly compatible with dateTime XML Schema type, or the guidance
> provided in RFC 9557 which updated RFC 3339.
> If the time in UTC is known, but the offset to local time is unknown, this
> SHOULD be represented with an offset of "Z", and MAY be represented using
> "-00:00" for backwards compatibility.
> Note that "Z" and "-00:00" are semantically different from an offset of
> +00:00, which implies that UTC is the preferred reference point for the
> specified time.
>
>
> Any objections?
>
>
>
>
>
>
> 3) Orie's DISCUSS #2 (regarding URI Normalization)
>
> There are two issues.
>
> Issue #1:
>
> The URI Normalization section says:
>
>          All unnecessary
>          percent-encoding is removed, and all case-insensitive
>          characters are set to lowercase except for hexadecimal
>          digits within a percent-encoded triplet, which are
>          normalized to uppercase as described in Section 6.2.2.1
>          of RFC 3986.
>
> Orie asks:
>
> What is “unnecessary percent encoding”?
>
> The poll conducted:
>
> Can You Accept Removing The Unnecessary Encoding Text?
>
> Note: should say "Percent Encoding" (not just "Encoding")
>
> The results were:
>
> Reasonable participation. Approximate ratio of responses 2:1:5 NA:No:Yes.
> - so mostly "yes"
>
> Any objections?
>
>
> Issue #2:
>
> Orie writes:
>
> The URI Normalization section also says:
>
>
>          The purpose of this normalization is to help provide
>          unique URIs.  Note that this normalization is not
>          sufficient to provide uniqueness.  Two URIs that are
>          textually distinct after this normalization may still be
>          equivalent.
>
>
> Orie asks:
>
> Also what is the value of producing unique URIs,
> if not for comparison / equivalence checks?
>
>
> Current position: no update to text.
>
> Any objections?
>
>
>
>
>
>
> 4) Orie's DISCUSS #3 (Did you mean A-Labels?)
>
>
> Orie quotes text from the document:
>
> ```
>          The domain part may use both A-labels and U-labels
>          (see RFC 5890). The canonical format of the domain part
>          uses lowercase characters and U-labels (RFC 5890) where
>          applicable.";
> ```
>
> Seems strange to suggest U-Labels in a canonical format.
>
> Also, is there a relevant length restriction here?
>
> https://datatracker.ietf.org/doc/html/rfc5890#section-4.2
>
> Consider just lifting the text for this section directly from:
> https://datatracker.ietf.org/doc/html/rfc6531#section-3.2
>
> ```
>    When doing lookups, the SMTPUTF8-aware SMTP client or
>    server MUST either use a Unicode-aware DNS library, or transform the
>    internationalized domain name to A-label form (i.e., a fully-
>    qualified domain name that contains one or more A-labels but no
>    U-labels)
> ```
>
>
> Current position: no update to text.
>
> Any objections?
>
>
>
>
> Kent as chair (and Mahesh as AD)
>
>
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>
>
> _______________________________________________
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>
>
> Mahesh Jethanandani
> [email protected]
>
>
> Mahesh Jethanandani
> [email protected]
>
>
>
>
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