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Shepherd writeup
draft-ietf-lsr-ospfv3-srv6-extensions

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 document had broader consensus than most OSPFv3 documents with actual
  implementors from Huawei, Cisco, Juniper, Nokia, and Arrcus reviewing the
  draft or contributing to the updates during the last call period. As always,
  it would be better if there were earliar reviews and discussions. 

2. Was there controversy about particular points, or were there decisions where
   the consensus was particularly rough?

  There was no real controversy although there was discussion as to whether it
  was a good idea to have a separate Link State Advertisements (LSAs) for the
  SRv6 Locators as opposed to using the existing LSAs. Unlike IS-IS, one of
  the advantages of OSPFv3 is that disjoint information can be advertised in
  separate LSAs.

  Review by OSPFv3 implementors revealed that the OSPFv3 PrefixOptions needed
  to be advertised in the SRV6 Locator TLV. This specification adds the AC-Bit
  (AnyCast Bit) which is applicable to all usages of the OSPFv3 PrefixOptions.

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.)

   No

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 is a Huawei implemenation underway but it has not been released yet and
   there is no report.

## 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.

   The SPRING WG has been notified.

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.

   A Routing Directorate Review is in progress. 

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]?

   Not Applicable. 

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.

   Not Appliable. 

## 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?

   Yes.

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?

    Not Applicable.


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?

    Proposed Standard. This is appropriate given that the document specifies
    the protocol encodings required for interoperable SRv6 operation. 

12. Have reasonable efforts been made to remind all authors of the intellectual
    property rights (IPR) disclosure obligations described in [BCP 79][8]? 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.

    Yes. 

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.

    Yes. Only four authors. Dean Cheng was removed as an author due to his
    retirement and disengagement from the IETF. 

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.)

    No nits. 

15. Should any informative references be normative or vice-versa? See the [IESG
    Statement on Normative and Informative References][16].

    No. All references are properly categorized. 

16. List any normative references that are not freely available to anyone. Did
    the community have sufficient access to review any such normative
    references?

    Not Applicable. 

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.

    No. 

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?

    None. 

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.

    No changes to other documents. 

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]).

    The IANA review has been done at each phase and the codepoints have
    been allocated through the early allocation process. An additional
    request has been made to add the AC-Bit to the OSPFv3 PrefixOptions
    registry. 

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.

    Assignments to the two new registries are made through IETF Review or
    IESG Approval [RFC 8126].
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