Dear Jim,

Thank you very much for the review. We addressed your comments together with 
some minor editorial nits from Med in version -09 which just has been 
published. Below inline the feedback

Best wishes
Thomas


The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-opsawg-ipfix-srv6-srh/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-opsawg-ipfix-srv6-srh-09

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-opsawg-ipfix-srv6-srh-09


JG> The above needs to be fixed. OSPFv3 is not [RFC9352] and I assume that the 
reference should point to 
https://datatracker.ietf.org/doc/draft-ietf-lsr-ospfv3-srv6-extensions/, 
ietf-lsr-isis-srv6-extensions is an out-of-date reference as it is now 
https://www.rfc-editor.org/rfc/rfc9352, and RFC 9252 is "BGP Overlay Services 
Based on Segment Routing over IPv6 (SRv6)" that provides protocol extensions 
for SRv6-based BGP services.

TG> Thanks. References corrected.

JG> Section 4 of the referenced draft does not define new endpoint 
JG> behaviors for SRv6; the document defines new flavors for existing behaviors.

TG> Correct. Based on the endpoint behaviors the encoding of the segment list 
can be deducted. 
We adjusted the wording 

From

   The SID endpoint behaviors described in section 4 of
   [I-D.ietf-spring-srv6-srh-compression] determine wherever the segment
   list is compressed or not.

To

   The SR Endpoint Flavors, described in section 4 of
   [I-D.ietf-spring-srv6-srh-compression] defines new flavors for SID
   endpoint behaviors, and determine wherever the segment list encoding
   is compressed, along with the flavor.

JG> The above description is not technically accurate. While section 2 
JG> of RFC8754 does define the SRH, the 'Segments Left' field of the SRH is 
actually defined in Section 4.4 of RFC8200 
(https://www.rfc-editor.org/rfc/rfc8200#section-4.4) and RFC8754 points to that 
reference. Section 5.7 of this document should also point to the correct 
reference.

TG> Well spotted. We adjusted the wording as following to include both 
TG> references in the right context:

   srhSegmentsIPv6Left
      8-bit unsigned integer defining the number of segments remaining
      to reach the end of the segment list from the SRH, as specified by
      the "Segments Left" field in Section 4.4 of [RFC8200] and
      mentioned part of the SRH in Section 2 of [RFC8754]).

-----Original Message-----
From: Jim Guichard via Datatracker <nore...@ietf.org> 
Sent: Wednesday, May 10, 2023 3:04 AM
To: The IESG <i...@ietf.org>
Cc: draft-ietf-opsawg-ipfix-srv6-...@ietf.org; opsawg-cha...@ietf.org; 
opsawg@ietf.org; mohamed.boucad...@orange.com; mohamed.boucad...@orange.com
Subject: Jim Guichard's Discuss on draft-ietf-opsawg-ipfix-srv6-srh-08: (with 
DISCUSS and COMMENT)

Jim Guichard has entered the following ballot position for
draft-ietf-opsawg-ipfix-srv6-srh-08: Discuss

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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------

Section 1:

   Also, three routing protocol extensions, OSPFv3 [RFC9352], IS-IS
   [I-D.ietf-lsr-isis-srv6-extensions] and BGP Prefix Segment
   Identifiers(Prefix-SIDs) [RFC9252]

The above needs to be fixed. OSPFv3 is not [RFC9352] and I assume that the
reference should point to
https://datatracker.ietf.org/doc/draft-ietf-lsr-ospfv3-srv6-extensions/,
ietf-lsr-isis-srv6-extensions is an out-of-date reference as it is now
https://www.rfc-editor.org/rfc/rfc9352, and RFC 9252 is "BGP Overlay Services
Based on Segment Routing over IPv6 (SRv6)" that provides protocol extensions
for SRv6-based BGP services.

Section 3:

   srhSegmentsIPv6Left
      8-bit unsigned integer defining the number of segments remaining
      to reach the end of the segment list as defined in Section 2 of
      [RFC8754].

The above description is not technically accurate. While section 2 of RFC8754
does define the SRH, the 'Segments Left' field of the SRH is actually defined
in Section 4.4 of RFC8200 (https://www.rfc-editor.org/rfc/rfc8200#section-4.4)
and RFC8754 points to that reference. Section 5.7 of this document should also
point to the correct reference.

Section 5.9.1:

  | TBD15 | OSPFv3             | [RFC-to-be],<xref target="RFC9352">   |
  |       | Segment Routing    |                                       |
  +-------+--------------------+---------------------------------------+
  | TBD16 | IS-IS              | [RFC-to-be],<xref target="            |
  |       | Segment Routing    | I-D.ietf-lsr-isis-srv6-extensions"/>  |
  +-------+--------------------+---------------------------------------+
These references need to be corrected as indicated above.


----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Section 6.2:

   The SID endpoint behaviors described in section 4 of
   [I-D.ietf-spring-srv6-srh-compression] determine wherever the segment
   list is compressed or not.

Section 4 of the referenced draft does not define new endpoint behaviors for
SRv6; the document defines new flavors for existing behaviors.



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