Last Call Review of draft-ietf-v6ops-transition-comparison-02
review-ietf-v6ops-transition-comparison-02-opsdir-lc-romascanu-2022-03-15-00

Summary:

Ready with Nits

(this review applies to both Gen-ART and OPSDIR.

This is an informational document reviewing advantages and disadvantages of the
five most prominent IPv4aaS technologies.

The document is explicitly targeting network operators, so it is useful and
recommended that operators dealing with one or more of these technologies or
evaluating their introduction read it carefully. I liked Section 4.5 which
includes some very useful Typical Deployment and Traffic Volume Considerations
and Section 5. Performance Considerations.

Major issues:

Minor issues:

Nits/editorial comments:

1. I am not sure whether this Informational document needs any of the
capitalized key words as described in BCP14 [RFC2119] [RFC8174] mentioned in
Section 1.1

2. Another pass to make sure that acronyms are expanded at first occurrence
would be useful. For exemple: UE in section 2.1

3. It is not clear how Table 2 should be read. What  means an X? I guess it is
supposed to say 'it applies, no data model' but this should be explained

4. Section 4.4.1 - I am slightly uncomfortable with the URLs for free
open-source implementations being included in the text. Maybe an Appendix would
be a better place. Or at least use informative references.