# Document Shepherd Write-Up for Group Documents
*This version is dated 4 July 2022.*
Thank you for your service as a document shepherd. Among the responsibilities is
answering the questions in this write-up to give helpful context to Last Call
and Internet Engineering Steering Group ([IESG][1]) reviewers, and your
diligence in completing it is appreciated. The full role of the shepherd is
further described in [RFC 4858][2]. You will need the cooperation of the authors
and editors to complete these checks.
Note that some numbered items contain multiple related questions; please be sure
to answer all of them.
## Document History
1. Does the working group (WG) consensus represent the strong concurrence of a
few individuals, with others being silent, or did it reach broad agreement?
This I-D represents the consensus on the WG; note that this is a “bis” and
targeted clarifications and not major changes. We did a WG call in March ‘23.
For issues & pull requests with substantive changes that were filed since, we
ran consensus calls for each.
2. Was there controversy about particular points, or were there decisions where
the consensus was particularly rough?
I would not say that there was much controversy.
3. Has anyone threatened an appeal or otherwise indicated extreme discontent? If
so, please summarize the areas of conflict in separate email messages to the
responsible Area Director. (It should be in a separate email because this
questionnaire is publicly available.)
There have been no threats of appeal.
4. For protocol documents, are there existing implementations of the contents of
the document? Have a significant number of potential implementers indicated
plans to implement? Are any existing implementations reported somewhere,
either in the document itself (as [RFC 7942][3] recommends) or elsewhere
(where)?
There are numerous implementations of TLS 1.3; this I-D is to make
clarifications for those implementations. No existing implementations are not
listed in the I-D.
## Additional Reviews
5. Do the contents of this document closely interact with technologies in other
IETF working groups or external organizations, and would it therefore benefit
from their review? Have those reviews occurred? If yes, describe which
reviews took place.
TLS 1.3 is used a lot, but is most likely most related to QUIC; QUIC uses the
TLS 1.3 handshake mechanism. While the I-D has not been sent to the WG for
review specifically, I do know that those who implemented QUIC have reviewed
this I-D, e.g., Google, Mozilla, Safari, Cloudflare, Akamai, Microsoft, etc.
6. Describe how the document meets any required formal expert review criteria,
such as the MIB Doctor, YANG Doctor, media type, and URI type reviews.
N/A
7. If the document contains a YANG module, has the final version of the module
been checked with any of the [recommended validation tools][4] for syntax and
formatting validation? If there are any resulting errors or warnings, what is
the justification for not fixing them at this time? Does the YANG module
comply with the Network Management Datastore Architecture (NMDA) as specified
in [RFC 8342][5]?
N/A
8. Describe reviews and automated checks performed to validate sections of the
final version of the document written in a formal language, such as XML code,
BNF rules, MIB definitions, CBOR's CDDL, etc.
N/A
## Document Shepherd Checks
9. Based on the shepherd's review of the document, is it their opinion that this
document is needed, clearly written, complete, correctly designed, and ready
to be handed off to the responsible Area Director?
The Shepherd believes that this document is ready to go.
10. Several IETF Areas have assembled [lists of common issues that their
reviewers encounter][6]. For which areas have such issues been
identified and addressed? For which does this still need to happen in
subsequent reviews?
As this a bis, these checks performed for draft-ietf-tls-tls13 still hold. I do
not believe that any changes made change anything WRT to those previous reviews
for common issues.
11. What type of RFC publication is being requested on the IETF stream ([Best
Current Practice][12], [Proposed Standard, Internet Standard][13],
[Informational, Experimental or Historic][14])? Why is this the proper
type of RFC? Do all Datatracker state attributes correctly reflect this
intent?
Standards Track is requested. This I-D is obsoleting RFC 8446, which was also
Standards Track, so the request makes sense.
12. Have reasonable efforts been made to remind all authors of the intellectual
property rights (IPR) disclosure obligations described in [BCP 79][7]?
To the best of your knowledge, have all required disclosures been
filed? If not, explain why. If yes, summarize any relevant discussion,
including links to publicly-available messages when applicable.
The Shepherd has confirmed with the author that all required disclosures have
been filed.
13. Has each author, editor, and contributor shown their willingness to be
listed as such? If the total number of authors and editors on the front
page is greater than five, please provide a justification.
The Shepherd has confirmed with the author that they are willing to be an
author.
14. Document any remaining I-D nits in this document. Simply running the [idnits
tool][8] is not enough; please review the ["Content Guidelines" on
authors.ietf.org][15]. (Also note that the current idnits tool generates
some incorrect warnings; a rewrite is underway.)
-11 has the following nits, but none should stop the I-D from progressing:
* Long lines: We will leave these to AUTH48
* RFCs 5077, 5246, 6961, 8422, and 8446 not being mentioned in abstract
as obsoleted: they are there there
* DOWNREFs: All are fine and were present in RFC 8446
* Obsolete REFs: All are fine and are they are there on purpose
15. Should any informative references be normative or vice-versa? See the [IESG
Statement on Normative and Informative References][16].
I believe the references are properly categorized.
NOTE: There does appear to be an issue with the RFC 8996 reference.
16. List any normative references that are not freely available to anyone. Did
the community have sufficient access to review any such normative
references?
N/A
17. Are there any normative downward references (see [RFC 3967][9] and [BCP
97][10]) that are not already listed in the [DOWNREF registry][17]? If
so, list them.
N/A; no new DOWNREFs were introduced by this I-D.
18. Are there normative references to documents that are not ready to be
submitted to the IESG for publication or are otherwise in an unclear
state? If so, what is the plan for their completion?
See q17.
19. Will publication of this document change the status of any existing RFCs? If
so, does the Datatracker metadata correctly reflect this and are those
RFCs listed on the title page, in the abstract, and discussed in the
introduction? If not, explain why and point to the part of the document
where the relationship of this document to these other RFCs is
discussed.
Obviously, this I-D obsoletes RFC 8446 and the metadata, title page, abstract,
and introduction all explain this.
This I-D also adds that it updates 7627 & 8422. The metadata, title page, and
abstract explain this. 7627 is mentioned in the introduction; 8422 is not.
4492, which 8422, updates should have been in the RFC 8446 metadata because it
removed point compression (this is noted in the intro), but we missed including
4492 in the metadata. Now 4492 has been obsoleted by 8422. See the following
for the discussion: https://github.com/tlswg/tls13-spec/pull/1229/files.
I will let others bikeshed on whether the Obsoletes header should stay as is:
Obsoletes: 8446
or include the previous Obsoletes info as follows:
Obsoletes: 5077, 5246, 6961, 8446
Note we did have a PR for this:
https://github.com/tlswg/tls13-spec/issues/1309
and a PR:
https://github.com/tlswg/tls13-spec/pull/1322
20. Describe the document shepherd's review of the IANA considerations section,
especially with regard to its consistency with the body of the document.
Confirm that all aspects of the document requiring IANA assignments are
associated with the appropriate reservations in IANA registries. Confirm
that any referenced IANA registries have been clearly identified.
Confirm that each newly created IANA registry specifies its initial
contents, allocations procedures, and a reasonable name (see [RFC
8126][11]).
S11: The diff between RFC 8446 and this I-D shows that we addressed an errata;
see https://www.rfc-editor.org/errata_search.php?eid=5976.
S11.1 clearly identifies new IANA considerations. There are three and they are
correct.
21. List any new IANA registries that require Designated Expert Review for
future allocations. Are the instructions to the Designated Expert clear?
Please include suggestions of designated experts, if appropriate.
N/A
[1]: https://www.ietf.org/about/groups/iesg/
[2]: https://www.rfc-editor.org/rfc/rfc4858.html
[3]: https://www.rfc-editor.org/rfc/rfc7942.html
[4]: https://wiki.ietf.org/group/ops/yang-review-tools
[5]: https://www.rfc-editor.org/rfc/rfc8342.html
[6]: https://wiki.ietf.org/group/iesg/ExpertTopics
[7]: https://www.rfc-editor.org/info/bcp79
[8]: https://www.ietf.org/tools/idnits/
[9]: https://www.rfc-editor.org/rfc/rfc3967.html
[10]: https://www.rfc-editor.org/info/bcp97
[11]: https://www.rfc-editor.org/rfc/rfc8126.html
[12]: https://www.rfc-editor.org/rfc/rfc2026.html#section-5
[13]: https://www.rfc-editor.org/rfc/rfc2026.html#section-4.1
[14]: https://www.rfc-editor.org/rfc/rfc2026.html#section-4.2
[15]: https://authors.ietf.org/en/content-guidelines-overview
[16]:
https://www.ietf.org/about/groups/iesg/statements/normative-informative-references/
[17]: https://datatracker.ietf.org/doc/downref/