Hi Lada, 
Thanks for your prompt and thorough review. 

Hi Chris, 
Please address the comments.
Thanks,
Acee

On 12/16/20, 7:13 AM, "Ladislav Lhotka via Datatracker" <[email protected]> 
wrote:

    Reviewer: Ladislav Lhotka
    Review result: Ready with Issues

    **** General comments

    - YANG module "ietf-isis-reverse-metric" is in a good shape except for
      one issue described below.
    - I appreciate the three examples of instance data in appendices (two
      in XML representation, one in JSON).

    **** Specific comments

    - In three places, the module uses "when" expressions with plain
      string equality test applied to identityref values, such as:

         when "../rt:type = 'isis:isis'"

      This is known to be fragile, which can demonstrated on the JSON
      example in appendix A.3: It has

         "type": "ietf-isis:isis"

      which makes the "when" expression false because of the different
      prefix, and the corresponding augment doesn't happen.

      The above "when" expression should use the XPath function
      "derived-from-or-self" that is defined in RFC 7950:

         when "derived-from-or-self(../rt:type, 'isis:isis')"  

    - The "tlv16-reverse-metric" grouping is used only once in the
      module. Unless it is expected to be used elsewhere, I would
      recommend to remove this grouping and use its contents directly.

    - The phrase "YANG XML data" is somewhat misleading, although it is
      probably often used in informal discussions. I would suggest "XML
      instance data" instead.

    **** Nits

    - Abstract & Introduction: s/routeing/routing/

    - Appending A.3: s/YANG XML data/JSON instance data/




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