[netmod] 答复: Joint WGLC on "semver" and "module-versioning" drafts

Hi all,

  I have reviewed these two drafts and think them are good and necessary.

  In my practice, although we try to avoid NBC changes, there are still many NBC changes in our YANG modules(YANG1.0), it may be caused by bugs fix, new requirements, etc. (creating new nodes/deprecating the old nodes may be very cumbersome and difficult to understand for both client and server. )

  I think it very important for client/app to provide some flags to indicate there are some NBC changes between versions or not, otherwise, client/app have to compare all yang modules between different versions to make sure whether NBC changes occur.

  I also have a suggestion:

    In section 5.2.2 of yang module versioning draft, I suggest the default value of deprecated-nodes-implemented/obsolete-nodes-absent is true. In this way, the server does not need to explicitly set this value.
    OLD:
    deprecated-nodes-implemented: If set to "true", this leaf indicates that all schema nodes with a status "deprecated" are implemented equivalently as if they had status "current"; 
                               otherwise deviations MUST be used to explicitly remove "deprecated" nodes from the schema. If this leaf is set to "false" or absent, then the behavior is unspecified.
    obsolete-nodes-absent: If set to "true", this leaf indicates that the server does not implement any status "obsolete" schema nodes. 
                       If this leaf is set to "false" or absent, then the behaviour is unspecified.
    NEW:
    deprecated-nodes-implemented: If set to "true" or absent, this leaf indicates that all schema nodes with a status "deprecated" are implemented equivalently as if they had status "current"; 
                               otherwise deviations MUST be used to explicitly remove "deprecated" nodes from the schema. If this leaf is set to "false" , then the behavior is unspecified.
    obsolete-nodes-absent: If set to "true" or absent, this leaf indicates that the server does not implement any status "obsolete" schema nodes. 
                       If this leaf is set to "false", then the behaviour is unspecified.

-----邮件原件-----
发件人: netmod [mailto:netmod-bounces@ietf.org] 代表 Kent Watsen
发送时间: 2023年5月9日 6:49
收件人: netmod@ietf.org
主题: [netmod] Joint WGLC on "semver" and "module-versioning" drafts

Dear NETMOD WG,

This message begins a joint two-week WGLC for draft-ietf-netmod-yang-semver-11 and draft-ietf-netmod-yang-module-versioning-09
 ending on Monday, May 22nd.  Neither draft has IPR declared.  Here are the direct links to the HTML version for these drafts:

   - https://datatracker.ietf.org/doc/html/draft-ietf-netmod-yang-semver-11
   - https://datatracker.ietf.org/doc/html/draft-ietf-netmod-yang-module-versioning-09

Positive comments, e.g., "I've reviewed this document and believe it is ready for publication", are welcome!  This is useful and important, even from authors.  Objections, concerns, and suggestions are also welcomed at this time.

Thank you,
Kent and Lou (chairs)

_______________________________________________
netmod mailing list
netmod@ietf.org
https://www.ietf.org/mailman/listinfo/netmod