[Pce] Re: [Idr] WG LC for draft-ietf-idr-sr-policy-seglist-id-09.txt (5/10/2026 to 5/31/2026)

[Yisong Liu <[e-mail]>]

Hi Sue and WG,

I support. I think this document is ready for publication. 
It enables unambiguous identification of individual segment lists within a candidate path, simplifies operations, monitoring, troubleshooting, and statistics collection, and improves interoperability between controllers and head-end nodes.


Best Regards
Yisong



----邮件原文----


 
 
From: Susan Hares <[e-mail]> 
 Sent: Sunday, May 10, 2026 3:47 PM
 To: idr@ietf. org <[e-mail]> spring <[e-mail]> Path Computation Element Discussion List <[e-mail]>
 Subject: [Idr] WG LC for draft-ietf-idr-sr-policy-seglist-id-09.txt (5/10/2026 to 5/31/2026)

 
 
 
 

 
Greetings: 

 
 

 
This is a 3-week WG LC for draft-ietf-idr-sr-policy-seglist-id-09.txt (5/10/2026 to 5/31/2026).  The authors of draft-ietf-idr-sr-policy-seglist-id-09.txt should respond to this email with IPR statements.   

 
 

 
This IDR WG LC is being cross-posted to Spring, PCE, and SRv6ops.  This document’s WG LC needs input from these 3 WGs. 

 
 

 
IDR WG members should discuss this draft and include in their discussion an indication of “support” or “no Support”.   IDR members should consider the following: 

 
1) Is this document ready for publication? 

 
2) Does the segment list identifier specified at the candidate path (CP) scope help deployments? 

 
3) Are there any technical flaws in this document? 

 
 

 
Appendix A of this draft contains a “cross-WG” information regarding Spring and PCE.   This WG LC includes Spring and PCE to validate the cross-WG information.  In addition, SRV6ops will be informed of the WG LC. 

 
 

 
This draft limits the scope of the segment list identifier to a candidate path.  During January – March,  the spring WG discussed whether this should be limited to just the Candidate Path or whether the scope of Segment List ID as unique within the headend node.  The discussion is at: 

 
https://mailarchive.ietf.org/arch/msg/spring/JVzsniFIj3sSQ93HT4Sl4fbJDpE/

 
 

 
Spring WG – please review the author's decision to limit the BGP mechanism to a candidate path.  Does this limitation align with Spring’s view on the segment list identifier?   

 
 

 
PCE WG -  please check that the reference material related to draft-ietf-pce-multipath are correct and valid. 

 
 

 
Thank you, Susan Hares 

 
 

 
PS – the SRv6ops is an operational WG – so I will send notification and summarize results.