Hi Sue,

I am not aware of any IPR related to any of them.

Best Regards
Ran





----邮件原文----

From: "Susan Hares" <[email protected]>Date: 2026-06-24 00:46:20To:  "idr@ietf. 
org" <[email protected]>,spring <[email protected]>Cc:  "Jeffrey Haas" 
<[email protected]>,pce-chairs <[email protected]>,srv6ops-chairs 
<[email protected]>Subject: [Idr] [SR-TE]Adoption call for 3 drafts: 1) 
draft-lin-idr-sr-policy-admin-flags, 2) draft-liu-idr-sr-segment-list-optimize, 
3) draft-ali-idr-bgp-ls-sr-policy-sl-opt-distribution-00.txt  (6/22/2026 to 
7/14/2026



Greetings: 
 
This is an adoption 3 week WG adoption call sent to IDR and Spring for the 
following 3 drafts:
1. draft-lin-idr-sr-policy-admin-flag-05.txt – 
2. draft-liu-idr-sr-segment-list-optimize-06.txt 
3. draft-ali-idr-bgp-ls-sr-policy-sl-opt-distribution-00.txt 
 
Both WGs must agree that these drafts are useful and appropriate. 
 
The authors of these three drafts should respond to this email with an IPR 
Statement specifying the following: 
1) draft you are a co-author on, 
2) Whether you know of any IPR on that draft. 
 
Background for the WG and Spring. 
 
 [I-D. draft-ietf-spring-srv6-policy-sid- list-opt] specifies procedures to 
indicate whether the endpoint's node SID needs to be included or excluded when 
installing the SRv6  Policy.
 
1) draft-lin-idr-sr-policy-admin-flags specifies as Segment List Administrative 
Flags as segment list SubTLV. Flags include: 
S- admin shutdown, B- backup ineligible, I-Ignore service route's Prefix SID, 
D- drop upon invalid (section 8.2, RFC9256), and E – eligible. 
2) draft-liu-idr-sr-segment-list-optimize  =  adds a flag of flag INF-Flag to 
Segment list administrative flags specified by 
draft-lin-idr-sr-policy-admin-flags.  The value (1) for INF-Flags indicates 
endpoint node SID is included in installing SID list(s) of the Candidate  Path 
(CP) when set.
3) draft-ali-idr-bgp-ls-sr-policy-sl-opt-distribution-00.txt -  send INF-Flag 
in BGP-LS 
 
Why 3 drafts in 1 call?  
As you can see from the description, if draft-lin-idr-sr-policy-admin-flags is 
not adopted – then the other two drafts cannot be adopted. 
Similarly, if draft-liu-idr-sr-segment-list-optimized is not adopted, then 
draft-ali-idr-bgp-ls-sr-policy-sl-opt-distribution cannot be adopted. 
 
Questions for Spring WG:  
1) Do these drafts correct implement 
[draft-ietf-spring-srv6-policy-sid-list-opt] concepts?> 
2) Do you see any problem with the adoption of any of these three drafts: 
(draft-lin-idr-sr-policy-admin-flag-05.txt, 
draft-liu-idr-sr-segment-list-optimize-06.txt, 
draft-ali-idr-bgp-ls-sr-policy-sl-opt-distribution-00.txt) 
 
Question for IDR:
1) Are there any problems in the technology descriptions? 
2) Does the status and setting of this flag work?  Are the “delays” inherent in 
BGP distribution a concern? 
3) Does this draft help operators deploy SRv6? 
 
Question for Spring and IDR:  
1)  Does this draft open any error issues? 
 
Please include in your comments – Support or No support for adoption. 
 
Cheerily, Susan Hares
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