Authors,

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

1) <!-- [rfced] We have updated the abbreviated title (which appears in the 
running
header of the PDF) as follows. Please let us know if you prefer otherwise.

Original:
RIFT YANG Model

Current:
RIFT YANG Data Model
-->


2) <!-- [rfced] The Terminology section (Section 3.1) states that terms and 
their
definitions are copied from RFC 9692. However, we note that definitions
in this section contain a mix of sentences directly from RFC 9692,
paraphrased sentences from RFC 9692, as well as mirrored definitions
missing words throughout. If there are no objections, we will revise the
Terminology section in this document to accurately reflect the
definitions that appear in RFC 9692. Please let us know any concerns.

For example:

"TIE" in RFC 9692 (Original):
  This is an acronym for a "Topology Information Element". TIEs are exchanged
  between RIFT nodes to describe parts of a network such as links and address
  prefixes. A TIE has always a direction and a type. North TIEs (sometimes
  abbreviated as N-TIEs) are used when dealing with TIEs in the northbound
  representation and South-TIEs (sometimes abbreviated as S-TIEs) for the
  southbound equivalent. TIEs have different types such as node and prefix TIEs.

"TIE" in this document (Original):
  "Topology Information Element" are exchanged between RIFT nodes to describe
  parts of a network such as links and address prefixes. A TIE has always a
  direction and a type. North TIEs (sometimes abbreviated as N-TIEs) are used
  when dealing with TIEs in the northbound representation and South-TIEs
  (sometimes abbreviated as S-TIEs) for the southbound equivalent. TIEs have
  different types such as node and prefix TIEs.
-->


3) <!--[rfced] We note that the following paragraph appears in Sections 2.1 and
2.3. To avoid repetition, may we remove the duplicate text from one
section or the other?

Original (Sections 2.1 and 2.3):
   The RIFT YANG module augments the /routing/control-plane-protocols/
   control-plane-protocol path defined in the ietf-routing module.  This
   model augments the routing module to add RIFT as a control plane
   protocol.  It then offers the ability to create a list of instances,
   which it does by declaring 'list rift'.  Multiple instances of the
   protocol are supported by the module by giving each instance a unique
   name. 
-->


4) <!--[rfced] FYI, we corrected 'sourth' to 'south' (3 instances).

>From the original:
465:          |  |  +-ro total-num-routes-sourth?
2418:             leaf total-num-routes-sourth {
2422:                 "The total number of sourth routes.";
-->


5) <!-- [rfced] We note that Section 6.3.9 of RFC 9692 is titled "Northbound 
TIE Flooding Reduction". May we rephrase as follows?

Original: 
Some features can be used to enhance protocol, such as BFD
[RFC5881], flooding-reducing section 6.3.9 [I-D.ietf-rift-rift].

Perhaps: 
Some features can be used to enhance protocols, such as BFD [RFC5881],
with flooding reduction (Section 6.3.9 of [RFC9692]).
-->


6) <!--[rfced] May we rephrase this sentence as follows for clarity?

Original:
   Unexpected TIE and neighbor's layer error should be notified.

Perhaps:
   Unexpected TIE and neighbor layer errors should be notified.
-->


7) <!--[rfced] We have received guidance from Benoit Claise and the YANG
Doctors that "YANG module" and "YANG data model" are preferred. 
We have updated the title of Section 3 accordingly. Please review 
usage of "YANG model" within this document.
-->


8) <!--[rfced] In the YANG module, please clarify "system id using pattern"
in the description of system-id. (In text as "System ID" to match 
RFC-to-be 9692.)

Original:
    description
      "This type defines RIFT system id using pattern,
       the system id looks like: 0021.2FFF.FEB5.6E10";

Perhaps:
    description
      "This type defines the pattern for RIFT System IDs.
       An example of a System ID is 0021.2FFF.FEB5.6E10.";
-->


9) <!--[rfced] Please note that the YANG module has been updated per 
the formatting option of pyang.  Please let us know any concerns.
-->


10) <!--[rfced] Section 4. The text has been updated to exactly 
match the template for YANG module security considerations 
(https://wiki.ietf.org/group/ops/yang-security-guidelines). Please review.
If additional changes are needed, please let us know. Specifically, 
the following text was updated.

Original (paragraph 3):
   Writable data node represent configuration of each instance, node, 
   interface, etc. These correspond to the following schema node:

Current:
   These are the subtrees and data nodes and their sensitivity/
   vulnerability:

However, should it be updated to singular because one item is listed?
Perhaps:
   This is the schema node and its sensitivity/vulnerability:


Original (paragraph 11):
   Specifically, the
   following operations have particular sensitivities/ vulnerabilities:

Current:
   These are the subtrees and data nodes and their sensitivity/
   vulnerability:
-->


11) <!--[rfced] Please clarify this sentence; the original does not parse.

Original:
   The incorrect modification of authentication, except for
   the neighbor connection broken, will lead to the permanent connection
   broken. 

Perhaps:
   The incorrect modification of authentication, except for
   the broken neighbor connection, will break the connection
   permanently.
-->


12) <!-- [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.

RFC Editor/mc/ar


On Jan 15, 2025, rfc-edi...@rfc-editor.org wrote:

*****IMPORTANT*****

Updated 2025/01/15

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--------------------------------------
RFC9719 (draft-ietf-rift-yang-17)

Title            : YANG Data Model for Routing in Fat Trees (RIFT)
Author(s)        : Z. Zhang, Y. Wei, S. Ma, X. Liu, B. Rijsman
WG Chair(s)      : Zhaohui (Jeffrey) Zhang, Jeff Tantsura
Area Director(s) : Jim Guichard, John Scudder, Gunter Van de Velde

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