Hi Ketan, Yes, we are updating text in the draft to consider that part as well (but still partially allowing use of SID filtering for 2 to 127). I planned to cover that part as part response in original mail thread with your comments with already updated document as well.
Regards, Samuel From: Ketan Talaulikar <[email protected]> Sent: Friday, June 13, 2025 1:52 PM To: Samuel Sidor (ssidor) <[email protected]> Cc: [email protected]; pce-chairs <[email protected]>; [email protected] Subject: Re: [Pce] draft-ietf-pce-sid-algo - SID filtering simplification Hi Samuel/WG, Thanks for following up on this point. As I had mentioned in my review, it is problematic to specify anything concretely for Algos 2 to 127. This is because they are subject to what may be specified by future documents (i.e., in LSR WG). Therefore, from a protocol correctness perspective, please consider making only suggestions or bringing up the idea that SID filtering can be applied to those algos, but leave it to future specs to actually specify such behavior. I hope you can consider this as well. Thanks, Ketan On Fri, Jun 13, 2025 at 3:05 PM Samuel Sidor (ssidor) <[email protected]<mailto:[email protected]>> wrote: Hi PCE WG, During the AD review of the PCEP SID Algorithm draft, comment was raised by Ketan (thank you for detailed review) related to benefits of SID filtering for the Flex-Algo range of SR-Algorithms. After discussions with the co-authors, we have decided to limit the use of SID filtering to the non-Flex-Algo range of SR-Algorithms. As a result: * SID Filtering: Applicable only to SR-Algorithm values 0-127: https://www.ietf.org/archive/id/draft-ietf-pce-sid-algo-19.html#name-path-computation-with-sid-f<https://www.ietf.org/archive/id/draft-ietf-pce-sid-algo-19.html#name-path-computation-with-sid-f%22%20t> * Flex-Algo Path Computation: Applicable to SR-Algorithm values 128-255: https://www.ietf.org/archive/id/draft-ietf-pce-sid-algo-19.html#name-flexible-algorithm-path-com<https://www.ietf.org/archive/id/draft-ietf-pce-sid-algo-19.html#name-flexible-algorithm-path-com%22%20t> As a result of this change, the F flag in the SR-Algorithm TLV will no longer be required. This flag was originally introduced to allow the Flex-Algo range to be used with both - SID filtering and Flex-Algo path computation. We believe this change simplifies the specification and improves clarity while maintaining the intended functionality of the draft. If you have any concerns or objections to this proposed change, please respond to the mailing list by 17th June. Thanks a lot, Samuel _______________________________________________ Pce mailing list -- [email protected]<mailto:[email protected]> To unsubscribe send an email to [email protected]<mailto:[email protected]>
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