So to build on the suggestions here, my proposal is:
* Make draft-ietf-6man-sidlist-clarification also Update RFC9352 * Add a new section to draft-ietf-6man-sidlist-clarification to contain the necessary clarification * Include text to say that there is no change to the processing or encoding of RFC9352 This is contingent on: 1. This WG (LSR) agreeing that it is OK to have the Update done in 6man 2. 6MAN agreeing that it is OK to expand the scope of draft-ietf-6man-sidlist-clarification 3. 6MAN chairs agreeing to share any last call with LSR 4. The editors of draft-ietf-6man-sidlist-clarification (Suresh and me) doing the work First step: LSR chairs, please get an answer to point 1. Second step: I will talk to 6MAN for points 2 and 3. Third step: The editors will propose text and share it with this list. Yes? Adrian From: Tony Li <[email protected]> On Behalf Of Tony Li Sent: 01 December 2025 06:59 To: Zafar Ali (zali) <[email protected]> Cc: Adrian Farrel <[email protected]>; Vasilenko Eduard <[email protected]>; LUIS MIGUEL CONTRERAS MURILLO <[email protected]>; Joel M. Halpern <[email protected]>; lsr <[email protected]>; Giuseppe Fioccola <[email protected]>; Paolo Volpato <[email protected]>; Bruno Decraene <[email protected]>; Zafar Ali (zali) <[email protected]> Subject: Re: [Lsr] Where to clarify RFC 9352 relative to SID containers Hi all, IMHO, this is not an appropriate use of the Errata mechanism. The intent of that mechanism is to report technical and editorial errors in the document. In this case, we’re talking about extending the text (albeit in an obvious way) to cover the case of a compressed segment list. This deserves to be in a separate document and have WG scrutiny. It would not be inappropriate to consider a 9352bis. Regards, T On Nov 30, 2025, at 7:11 PM, Zafar Ali (zali) - zali=40cisco.com at dmarc.ietf.org <[email protected] <mailto:[email protected]> > wrote: Hi Adrian, Joel, WG, I agree with Adrain, "that in 9352, MSD should be interpreted to mean the maximum number of 128-bit entries in the Segment list, and not the number of SIDs represented". Depending on AD/ chairs preference, a clarification along these lines can be made in draft-ietf-6man-sidlist-clarification or as an RFC9352 Errata. Thanks Regards … Zafar On 11/30/25, 5:54 AM, "Adrian Farrel" < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>> wrote: Hi, Coming to this thread late a wilfully jumping in half way through. Can I point you to draft-ietf-6man-sidlist-clarification? The problem identified there is that there was originally some "wooliness" with regard to terminology in 8754. - Both "SID list" and "Segment list" are used. - There is an implication (which, certainly, no longer applies) that entries in the Segment list are 128 bit IPv6 addresses. This is no attack on the authors (we were all in the room when the text was agreed) and the clarification doesn't change the technology one iota. I think that 9352 carried on this slight fuzziness. Again, no attack on the authors or the technology - we all reviewed the text. I would agree that in 9352, MSD should be interpreted to mean the maximum number of 128-bit entries in the Segment list, and not the number of SIDs represented. Cheers, Adrian Cisco Confidential -----Original Message----- From: Vasilenko Eduard < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>> Sent: 27 November 2025 11:08 To: LUIS MIGUEL CONTRERAS MURILLO < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>>; Joel Halpern < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>>; lsr < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>> Cc: Giuseppe Fioccola < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>>; Paolo Volpato < <mailto:[email protected]> [email protected]< <mailto:[email protected]> mailto:[email protected]>>; Bruno Decraene < <mailto:[email protected]> [email protected] < <mailto:[email protected]> mailto:[email protected]>> Subject: [Lsr] Re: Where to clarify RFC 9352 relative to SID containers Hi all, Pay attention that RFC 9532 is the normative document, all documents in BMWG are informative. I am not sure I have understood the context. I do not see the problem. Compressed SID is the "SID" too. 128bit entry inside the SRH is called "Segment List" in the RFC 8754. Hence, no problems because names are different. Eduard -----Original Message----- From: LUIS MIGUEL CONTRERAS MURILLO <[email protected] <mailto:[email protected]> <mailto:[email protected]>> Sent: Thursday, November 27, 2025 13:40 To: Joel Halpern <[email protected] <mailto:[email protected]> <mailto:[email protected]>>; lsr <[email protected] <mailto:[email protected]> <mailto:[email protected]>> Cc: Giuseppe Fioccola <[email protected] <mailto:[email protected]> <mailto:[email protected]>>; Paolo Volpato <[email protected] <mailto:[email protected]> <mailto:[email protected]>>; Bruno Decraene <[email protected] <mailto:[email protected]> <mailto:[email protected]>>; Vasilenko Eduard <[email protected] <mailto:[email protected]> <mailto:[email protected]>> Subject: RE: [Lsr] Where to clarify RFC 9352 relative to SID containers Hi Joel, Not sure if this would be what you are looking for (especially because is an outcome of BMWG and not LSR), but draft-ietf-bmwg-sr-bench-meth includes proposal of segment list scale testing that could serve for the purpose you comment (that is, adding maximum number of 128 bit pieces as an aspect to be considered during the benchmarking process). So maybe the point that you raise can be included here. I copy my co-authors in case they want to complement with additional comments. Best regards Luis -----Mensaje original----- De: Joel Halpern <[email protected] <mailto:[email protected]> <mailto:[email protected]>> Enviado el: jueves, 27 de noviembre de 2025 11:07 Para: lsr <[email protected] <mailto:[email protected]> <mailto:[email protected]>> Asunto: [Lsr] Where to clarify RFC 9352 relative to SID containers AVISO/WARNING: Este correo electrónico se originó desde fuera de la organización. No haga clic en enlaces ni abra archivos adjuntos a menos que reconozca al remitente y sepa que el contenido es seguro / This email has been originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. First, to be clear, what I am describing is NOT an error in RFC 9352. Thus, I don't think an erratum is the appropriate way to document for future readers this additional aspect of the intent of certain maximum segment depth advertisements for SRv6. RFC 9352 talks about the maximum number of SIDs. However, when SIDs are carried in compressed SID containers, the number that matters for some (maybe all?) of the maximum segment depths is the number of 128 bit pieces, not the number of SIDs. Apparently, several implementations are consistent with that. It seems a bit odd to write another RFC just to say that. Is there some document in process that could sensibly capture this. (As RFC 9352 predates the Compressed SID RFC it makes sense that this case is not disucssed there.) Yours, Joel _______________________________________________ Lsr mailing list -- [email protected] <mailto:[email protected]> <mailto:[email protected]> To unsubscribe send an email to [email protected] <mailto:[email protected]> <mailto:[email protected]> ________________________________ Este mensaje y sus adjuntos se dirigen exclusivamente a su destinatario, puede contener información privilegiada o confidencial y es para uso exclusivo de la persona o entidad de destino. Si no es usted. el destinatario indicado, queda notificado de que la lectura, utilización, divulgación y/o copia sin autorización puede estar prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, le rogamos que nos lo comunique inmediatamente por esta misma vía y proceda a su destrucción. The information contained in this transmission is confidential and privileged information intended only for the use of the individual or entity named above. 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