Re: [Last-Call] Artart last call review of draft-ietf-opsawg-rfc7125-update-05

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Hi Tim, 

Thank you for the review. 

The changes made to take into account this review can be seen at: https://github.com/boucadair/-ipfix-rfc7125-update/pull/5/files.

Please see inline for more context. 

Cheers,
Med

> -----Message d'origine-----
> De : Tim Bray via Datatracker <noreply@xxxxxxxx>
> Envoyé : lundi 16 octobre 2023 18:33
> À : art@xxxxxxxx
> Cc : draft-ietf-opsawg-rfc7125-update.all@xxxxxxxx; last-
> call@xxxxxxxx; opsawg@xxxxxxxx
> Objet : Artart last call review of draft-ietf-opsawg-rfc7125-update-05
> 
> Reviewer: Tim Bray
> Review result: Ready with Nits
> 
> The last time I thought about TCP header bits was in 1998, so all the
> revision history and technical content is opaque to me.  I have a few
> nits on formatting and language, which may be entirely off-base
> because of my lack of context.
> 
> Nits:
> 
> 1. Introduction - why is the single sentence beginning "The bits in
> offsets 0 through 3" indented that way? Should it have "Note:" or
> something in front?  Is the middle of the section the right place for
> it?

[Med] That is a note to recall that these bits aren’t flag bits. Added "Note:". 

> 
> 2. Section 3 - "for each TCP control bit, there is a bit in this set"
> - took me a bit of mental work to parse. Upon re-reading, I think you
> could maybe just lose this: "This information is encoded as a bit
> field; the bit is set to 1 if any observed packet of this Flow has the
> corresponding TCP control bit set to 1."

[Med] That part of the text was inherited from RFC7125. Updated slightly the text for better clarity. 

> 
> 3. Section 3 - This section makes regular use of the verb "export",
> does this in effect mean "set"? Should that be made explicit?

[Med] The use of export here is consistent with the usage in IPFIX context/specs. No change is made here. 

> 
> 4. Section 5 - " an exporter has to report " - should "has to" be
> "MUST"?
> 

[Med] No normative language is used here because otherwise this will be redundant with other part of the text: 

      All TCP control bits (including those unassigned) MUST be exported
      as observed in the TCP headers of the packets of this Flow.

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