[spring] Re: [Internet]Follow-up on IETF 124 Presentation of draft-liu-spring-sr-policy-flexible-path-selection and draft clarification

["wisdomtan(谭智)" <[e-mail]>]

Hi WG,

 

After reviewing the latest version, I consider this a useful methodology for selecting an eligible candidate path, depending on the specific service requirements.

 

Path reliability and congestion adjustment are common challenges in service deployment.

Path reliability can be achieved through BFD detection of specific segment lists in SR Policy.

Currently, there is a lack of automatic switchover mechanisms for SR Policy paths during congestion, and this document effectively addresses this issue.

Section 4.2 clearly defines the forwarding quality model for SR Policy, and it is recommended to further supplement the YANG definitions in subsequent work.

 




Thanks,

wisdom




                        
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                    Yisong Liu<[e-mail]&gt;&nbsp;在 2025年11月19日 周三 9:27 写道：


Dear Chairs and WG,




Thank you for the valuable feedback following our presentation at IETF 124. We would like to offer some clarification to ensure our draft's purpose is properly understood.

In our latest revision, we have referenced draft-karboubi-spring-sr-policy-eligibility, though we wish to emphasize that the two drafts serve distinctly different purposes. The eligibility draft introduces new concepts for path qualification, while our draft focuses specifically on defining a mechanism for path selection and switching based on forwarding performance metrics such as latency, jitter, and bandwidth. Our approach predefines quality requirements for SR policies and enables rapid path selection or switching when real-time monitoring indicates these requirements are no longer met. The reference to eligibility is included to maintain compatibility with the SR Policy architecture defined in RFC 9256.

We believe there is no&nbsp; significant overlap between our draft and eligibility draft and see value in advancing them independently. We would appreciate if the chairs can give the guidance on how to proceed with our draft. Additionally, we have formally requested an adoption call during our presentation and would be grateful if the chairs can help to schedule this.

Welcome all comments and suggestions regarding our draft and look forward to continued feedback from the working group.




Best regards,
Yisong on behalf of co-authors




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