Hi all,
Thanks for the review and comments.
v-12 is posted to resolve the comments on the description for the "security" 
choice.
Please check the diff:  
https://www.ietf.org/rfcdiff?url2=draft-ietf-opsawg-tacacs-yang-12

Thanks,
Bo

-----邮件原件-----
发件人: Roman Danyliw via Datatracker [mailto:[email protected]] 
发送时间: 2021年5月14日 3:18
收件人: The IESG <[email protected]>
抄送: [email protected]; [email protected]; 
[email protected]; Joe Clarke <[email protected]>; [email protected]
主题: Roman Danyliw's No Objection on draft-ietf-opsawg-tacacs-yang-11: (with 
COMMENT)

Roman Danyliw has entered the following ballot position for
draft-ietf-opsawg-tacacs-yang-11: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Thank you to Yaron Sheffer for the SECDIR review, and for the changes in 
response.

Thanks for addressing my DISCUSS around compatibility with RFC8907 and the 
COMMENT feedback.

Per my DISCUSS on publishing this document as a proposed standard and 
characterizing it as new functionality that standardizes an API to an insecure 
protocol (that is itself has informational status), I will clear per the 
discussion had in the IESG:

-- I’m persuaded that with -11, the YANG module is feature equivalent to
RFC8907 (so there isn't any new functionality).  Surprisingly, despite this 
module being focused on RFC8907, it now foreshadows future changes in Section 4 
of the "choice security" with "... a future encryption mechanism will result in 
a non-backwards-compatible change" which suggests that this YANG module isn't 
tied solely to RFC8907.

-- As to the API mechanism being new functionality, I question the value of 
making it easier to manage a fundamentally insecure protocol with this new 
capability and whether publication of this document (unlike RFC8907) does 
provide the basis for future improvements.  Nevertheless, there are operational 
realities of how widely TACACS+ is already deployed that necessitate 
improvement management of the as-is infrastructure while an improved protocol 
is built.

-- As to the issue of the underlying protocol having a “lower” status 
(information for RFC8907) than the associated YANG module (PS for this 
document), I leave that to the convention of OPS area.



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