[Tvr] Re: [External] FW: New Version Notification for draft-zdm-tvr-applicability-05.txt

["zhangli (CE)" <[e-mail]>]

Hi Dan,

Thanks a lot for your contributions and support to this I-D.

I think the question is for the WG, whether we need to focus on a single example and go into more detail. And whether we need a hackathon to prototype some TVR capabilities? 


Best regards
Li

> -----邮件原件-----
> 发件人: King, Daniel <[e-mail]>
> 发送时间: 2026年2月10日 6:02
> 收件人: zhangli (CE) <[e-mail]>
> 抄送: tvr <[e-mail]>
> 主题: RE: [External] FW: New Version Notification for
> draft-zdm-tvr-applicability-05.txt
> 
> Thanks, Li, and other I-D authors.
> 
> I appreciate the time you took to publish a new version of the I-D, and thanks for
> addressing my comments and assorted updates. Good job.
> 
> Re: JSON examples
> 
> Although I appreciate the multiple examples in the document, I wonder
> whether we should focus on a single example and go into more detail. This
> might depend on what the WG considers a suitable example of the TVR
> schedule being applied. The document has five examples; would two or three be
> enough, and then focus effort on providing a more detailed analysis and
> over-the-wire example code via a repository in an appendix.
> 
> Thinking aloud, why not combine with a network controller such as
> TeraFlowSDN (https://tfs.etsi.org/) and work with partners to prototype some
> TVR capabilities and consider operational aspects? This could also be supported
> via an IETF Hackathon. I'd be willing to volunteer and contribute code to
> achieve this if other people are also interested.
> 
> Re: Next Steps
> 
> Obviously up to the Chairs and WG, but I'd support adopting the I-D. I think it
> provides a necessary step towards achieving the WG's final chartered
> goals/milestones:
> 
> https://datatracker.ietf.org/group/tvr/about/
> 
> Nov 2025        Applicability Statement
> Mar 2026        Implementation and Operational Considerations
> 
> BR, Dan.
> 
> -----Original Message-----
> From: zhangli (CE) <[e-mail]>
> Sent: 09 February 2026 12:17
> To: tvr <[e-mail]>
> Cc: [e-mail]; King, Daniel <[e-mail]>
> Subject: [External] FW: New Version Notification for
> draft-zdm-tvr-applicability-05.txt
> 
> This email originated outside the University. Check before clicking links or
> attachments.
> 
> Dear TVR WG,
> 
> As you see, a new version of draft-zdm-tvr-applicability. This version addresses
> multiple comments from Dan King and also includes additional improvements to
> the document for clarity and explanation, including:
> 
> - Editorial/Readability Improvements
> - Explaining TVR definitions
> - Clarification for protocol usage and data stores related to TVR usage
> - Further narrowing the scope of use cases and examples
> - More details on handling schedule conflicts
> - Recommendations for Security Considerations
> - Practical Operator Considerations
> - Cleaning up code and NITS related to JSON
> - Additional References
> 
> Thanks a lot for Dan King's valuable comments and suggestions.
> 
> So, dear chairs and all, does the working group want to adopt the document?
> 
> If so, I think there is a need to make sure we have the right examples. A
> suggestion from Dan King is that maybe we can extend the detail of the use case
> JSON examples. Maybe Dan King can expand on what he means by this?
> 
> Best regards
> Li
> 
> -----邮件原件-----
> 发件人: [e-mail] <[e-mail]>
> 发送时间: 2026年2月9日 19:39
> 收件人: Dongjie (Jimmy) <[e-mail]>; zhangli (CE)
> <[e-mail]>; Mohamed Boucadair
> <[e-mail]>
> 主题: New Version Notification for draft-zdm-tvr-applicability-05.txt
> 
> A new version of Internet-Draft draft-zdm-tvr-applicability-05.txt has been
> successfully submitted by Li Zhang and posted to the IETF repository.
> 
> Name:     draft-zdm-tvr-applicability
> Revision: 05
> Title:    Applicability of TVR YANG Data Models
> Date:     2026-02-09
> Group:    Individual Submission
> Pages:    39
> URL:      https://www.ietf.org/archive/id/draft-zdm-tvr-applicability-05.txt
> Status:   https://datatracker.ietf.org/doc/draft-zdm-tvr-applicability/
> HTML:     https://www.ietf.org/archive/id/draft-zdm-tvr-applicability-05.html
> HTMLized: https://datatracker.ietf.org/doc/html/draft-zdm-tvr-applicability
> Diff:     https://author-tools.ietf.org/iddiff?url2=draft-zdm-tvr-applicability-05
> 
> Abstract:
> 
>    Time-Variant Routing (TVR) is a routing system that can accommodate
>    predicted topology changes caused by internal or external factors.
>    Typical use cases include resource preservation networks, operating
>    efficiency networks and dynamic reachability networks.  This document
>    provides examples of how to implement the TVR scheduling capabilities
>    for key use cases.  It describes which part of the TVR data model is
>    used and why, and it outlines operational and security considerations
>    when deploying TVR-based technologies.
> 
> 
> 
> The IETF Secretariat
>