Hi Éric, 

As the Doc Shepherd, I'm sharing some context related to this comment:

> ### Section 6.3
> 
> Beside encapsulation, I do not see how multiple (S)RHs could be in
> one IPv6
> packet. Anyway, the router will, per RFC 8200, only act on the
> outermost one.
> I.e., strongly suggest that this I-D specifies that only the
> outermost SRH &
> associated behavior are specified.

FYI, this point was discussed in the WG especially that there is no SPING 
document that motivates/explains the use of multiple SRHs. Please check: 
https://mailarchive.ietf.org/arch/msg/opsawg/SVm4TZk1v6-a0WJwALk3FrUunFU/ for 
why the authors think this section is useful to be maintained in the document. 

Cheers,
Med

> -----Message d'origine-----
> De : Éric Vyncke via Datatracker <nore...@ietf.org>
> Envoyé : lundi 22 mai 2023 16:17
> À : The IESG <i...@ietf.org>
> Cc : draft-ietf-opsawg-ipfix-srv6-...@ietf.org; opsawg-
> cha...@ietf.org; opsawg@ietf.org; BOUCADAIR Mohamed INNOV/NET
> <mohamed.boucad...@orange.com>; BOUCADAIR Mohamed INNOV/NET
> <mohamed.boucad...@orange.com>
> Objet : Éric Vyncke's Yes on draft-ietf-opsawg-ipfix-srv6-srh-10:
> (with COMMENT)
> 
> Éric Vyncke has entered the following ballot position for
> draft-ietf-opsawg-ipfix-srv6-srh-10: Yes
> 
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> datatracker.ietf.org%2Fdoc%2Fdraft-ietf-opsawg-ipfix-srv6-
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> 
> ------------------------------------------------------------------
> ----
> COMMENT:
> ------------------------------------------------------------------
> ----
> 
> # Éric Vyncke, INT AD, comments for draft-ietf-opsawg-ipfix-srv6-
> srh-10
> 
> Thank you for the work put into this document.
> 
> Please find below some non-blocking COMMENT points (but replies
> would be
> appreciated even if only for my own education).
> 
> Special thanks to Mohamed Boucadair for the shepherd's detailed
> write-up
> including the WG consensus and the justification of the intended
> status.
> 
> I hope that this review helps to improve the document,
> 
> Regards,
> 
> -éric
> 
> ## COMMENTS
> 
> ### More than data plane
> 
> I like the idea of exporting srhIPv6ActiveSegmentType for
> operation, it goes
> well beyond the plain export of the SRH header. I just fear that
> the extra
> information is redundant and will be repeated quite often.
> 
> ### Section 5.1.9
> 
> What would happen if this information is learned by two sources ?
> 
> ### Section 6.3
> 
> Beside encapsulation, I do not see how multiple (S)RHs could be in
> one IPv6
> packet. Anyway, the router will, per RFC 8200, only act on the
> outermost one.
> I.e., strongly suggest that this I-D specifies that only the
> outermost SRH &
> associated behavior are specified.
> 
> 


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