Authors,

While reviewing this document during AUTH48, please resolve (as necessary) the 
following questions, which are also in the source file.

1) <!-- [rfced] Please insert any keywords (beyond those that appear in
the title) for use on https://www.rfc-editor.org/search. -->


2) <!-- [rfced] We note that there is no mention of an "sr-protocol grouping"
in RFC 9020, but it does use "'sr-control-plane' grouping". Should the
parenthetical text below be updated to match what appears in RFC 9020?

Original:
   *  OSPF instance level configuration imported from the ietf-segment-
      routing-mpls YANG module including the mapping server bindings and
      the per-protocol Segment Routing Global Block (SRGB) (refer to the
      sr-protocol grouping [RFC9020]).

Perhaps:
   *  OSPF instance level configuration imported from the ietf-segment-
      routing-mpls YANG module including the mapping server bindings and
      the per-protocol Segment Routing Global Block (SRGB) (refer to the
      "sr-control-plane" grouping [RFC9020]).
-->      


3) <!-- [rfced] We note that RFCs 8665 and 8666 use "Extended Prefix Range TLV"
rather than "extended range TLV". May we update the two list items below
to match the corresponding RFCs?

Original:
   *  OSPFv2 extended range TLV encodings [RFC8665] in the OSPF
      Extended-Prefix Opaque LSA [RFC7684].
   ...
   *  OSPFv3 extended range TLV encodings [RFC8666] in the OSPFv3 E-
      Intra-Area-Prefix-LSA, E-Inter-Area-Prefix-LSA, E-AS-External-LSA,
      and E-Type-7-LSA [RFC8362].

Perhaps:
   *  OSPFv2 Extended Prefix Range TLV encodings [RFC8665] in the OSPF
      Extended-Prefix Opaque LSA [RFC7684].
   ...
   *  OSPFv3 Extended Prefix Range TLV encodings [RFC8666] in the OSPFv3 E-
      Intra-Area-Prefix-LSA, E-Inter-Area-Prefix-LSA, E-AS-External-LSA,
      and E-Type-7-LSA [RFC8362].
-->


4) <!--[rfced] FYI - We have removed the following items from their
corresponding lists in Section 2 as they were each listed twice.

Original:
   *  OSPFv2 Prefix SID Sub-TLV encodings [RFC8665] included the OSPF
      Extended Prefix TLV which is advertised in the OSPF Extended
      Prefix Opaque LSA [RFC7684].
   ...
   *  OSPFv3 extended range TLV encodings [RFC8666] in the OSPFv3 E-
      Intra-Area-Prefix-LSA, E-Inter-Area-Prefix-LSA, E-AS-External-LSA,
      and E-Type-7-LSA [RFC8362].
   ...
   *  OSPFv3 Adj-SID Sub-TLV [RFC8666] in the OSPFv3 Router-Link TLV
      [RFC8362].
-->   


5) <!--[rfced] We note that there is no mention of "Extended Prefix Range TLV" 
in RFC 8362, but it is defined in RFC 8666 (note that "Intra-Area-Prefix TLV",
"Inter-Area-Prefix TLV", and "External-Prefix TLV" are defined in RFC 8362).
Please review and let us know if/how the text or citation should be updated for
correctness.

Original:
   *  OSPFv3 Prefix-SID Sub-TLV encodings [RFC8666] in the OSPFv3 Intra-
      Area Prefix TLV, Inter-Area Prefix TLV, External Prefix TLV, and
      OSPFv3 Extended Prefix Range TLV [RFC8362].
-->


6) <!-- [rfced] We note that [RFC2328] and [RFC5340] are not referenced in the
YANG module but are listed in the introductory text for the YANG module.
Additionally, [RFC8665], [RFC8666], [RFC9020], and [RFC9129] are referenced
in the YANG module but are not listed in the introductory text. May we update
the introductory text as follows? Note that, if yes, we will also remove the
references for [RFC2328] and [RFC5340] from the Normative References section.

Original:
   [RFC2328], [RFC4915], [RFC5340], [RFC6991], [RFC8102], [RFC8294],
   [RFC8349], [RFC9587], and [I-D.ietf-rtgwg-segment-routing-ti-lfa] are
   referenced in the YANG module.

Perhaps:
   [RFC4915], [RFC6991], [RFC8102], [RFC8294], [RFC8349], [RFC8665],
   [RFC8666], [RFC9020]. [RFC9129], [RFC9587], and [RFC9855] are
   referenced in the YANG module.
-->


7) <!--[rfced] We are having some difficulty parsing this description text
in the YANG module, particularly with "interface" repeated. Please review
and let us know how it should be updated for clarity.

Original:
   This augments broadcast and non-broadcast multi-access
   interface segment routing interface configuration.

Perhaps:
   This augments broadcast and non-broadcast multi-access
   interface Segment Routing and interface configuration.
-->


8) <!--[rfced] We have updated this description text in the YANG module for
clarity. Please review and confirm that the intended meaning has not been
altered.

Original:
   A path providing node a disjoint path for SRLG
   links from the primary path will be selected over
   one that doesn't provide an SRLG disjoint path.

Current:
   A path providing a node with a disjoint path for SRLG
   links from the primary path will be selected over
   a path that doesn't provide an SRLG disjoint path.
-->


9) <!--[rfced] We note that Derek Yeung is listed as an author in the
YANG module but is not listed as an author of this document. Should
we remove his name from the YANG module and add it to the
Acknowledgements section?

Original:
        Author:   Derek Yeung
                  <mailto:[email protected]>
-->    


10) <!--[rfced] FYI, we have made some updates to the Security Considerations 
to 
match Section 3.7 of draft-ietf-netmod-rfc8407bis-28. Please let us know 
if any further updates are needed. Specifically:

- Should this sentence from the template be added? "There are no particularly 
sensitive RPC or action operations."

-->


11) <!--[rfced] Abbreviations

a) FYI - We have added expansions for the following abbreviations
per Section 3.6 of RFC 7322 ("RFC Style Guide"). Please review each
expansion in the document carefully to ensure correctness.

 IP Fast Reroute (IP-FRR)
 No Penultimate Hop-Popping) (No-PHP)
 Remote Loop-Free Alternate  (RLFA)
 Segment Routing Local Block (SRLB)


b) Both the expansion and the acronym for the following terms are used
throughout the document. Would you like to update to using the expansion
upon first usage and the acronym for the rest of the document for consistency?

 Adjacency Segment Identifier, adjacency Segment ID, adjacency SID (Adj-SID)
 Denial-of-Service (DoS)
 Remote LFA (RLFA)
 Segment ID, Segment Identifier (SID)
 Segment Routing Mapping Server, SR Mapping Server (SRMS)
 Segment Routing over MPLS (SR-MPLS)


c) FYI, we updated the expansion of "SRLG" from "Shared Resource Link
Group" to "Shared Risk Link Group" to match how it is expanded in 
past RFCs. 

d) FYI, we updated one instance of "SRBG" to "SRGB" (Section 4) to 
match usage in the rest of the document. 
-->


12) <!-- [rfced] Terminology

a) Throughout the text, the following terminology appears to be used 
inconsistently. Please review these occurrences and let us know if/how they
may be made consistent.  

 Segment Routing vs. segment routing


b) For consistency and to reflect how they appear in previously published
RFCs, we have updated the terminology to the form on the right. Please review
and let us know if any further updates are needed.

 Adj-SID sub-TLV, Adj-SID sub-tlv, Adj-sid sub-tlv > Adj-SID Sub-TLV

 Prefix SID Sub-TLV, prefix SID sub-TLV, Prefix SID sub-TLV > Prefix-SID Sub-TLV
-->


13) <!-- [rfced] Please review the "Inclusive Language" portion of the online
Style Guide <https://www.rfc-editor.org/styleguide/part2/#inclusive_language>
and let us know if any changes are needed.  Updates of this nature typically
result in more precise language, which is helpful for readers.

Note that our script did not flag any words in particular, but this should 
still be reviewed as a best practice.
-->


Thank you.

Alanna Paloma and Alice Russo
RFC Production Center


On Nov 21, 2025, at 10:57 AM, [email protected] wrote:

*****IMPORTANT*****

Updated 2025/11/21

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--------------------------------------
RFC9903 (draft-ietf-ospf-sr-yang-50)

Title            : A YANG Data Model for OSPF Segment Routing over the MPLS 
Data Plane
Author(s)        : Y. Qu, A. Lindem, Z. Zhang, I. Chen
WG Chair(s)      : Acee Lindem, Christian Hopps, Yingzhen Qu
Area Director(s) : Jim Guichard, Ketan Talaulikar, Gunter Van de Velde

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