Re: [Detnet] Barry Leiba's No Objection on draft-ietf-detnet-mpls-11: (with COMMENT)

[Balázs Varga A <[e-mail]>]

Hi Barry/Ethan/Benjamin,

OK, thanks for the good wording.

I will update the drafts:
- change to normative reference
- add text as proposed on zero as a valid sequence number topic

Thanks
Bala'zs


-----Original Message-----
From: Barry Leiba <[e-mail]> 
Sent: Friday, September 4, 2020 9:39 PM
To: Grossman, Ethan A. <[e-mail]>
Cc: Balázs Varga A <balazs.a.varga=[e-mail]>; The IESG <[e-mail]>; [e-mail]; [e-mail]; [e-mail]
Subject: Re: Barry Leiba's No Objection on draft-ietf-detnet-mpls-11: (with COMMENT)

Thanks, Ethan... with your suggestions, it would read this way:

"and (2) to allow sequence numbering systems that include the value zero as a valid sequence number, which simplifies implementation."

*That*, I find quite clear!  If Balázs agrees, it looks like we have a good solution.

Barry

On Fri, Sep 4, 2020 at 3:35 PM Grossman, Ethan A. <[e-mail]> wrote:
>
> Hi Balázs,
> Regarding the word "what" I think the word you want is "which":
>
> Was:  "and (2) to allow non-skip zero S/N what simplifies implementation."
> Is:       "and (2) to allow non-skip zero S/N, which could simplify implementations".
>
> Regarding "non-skip zero S/N" I know there has been discussion of this, is there anything published that we could provide a reference to? Or maybe just copy a longer version of the name for this from somewhere else...
> Maybe "sequence numbering systems which include the value zero as a valid sequence number"
>
> Ethan.
>
>
> -----Original Message-----
> From: Barry Leiba <[e-mail]>
> Sent: Friday, September 4, 2020 11:58 AM
> To: Balázs Varga A <balazs.a.varga=[e-mail]>
> Cc: The IESG <[e-mail]>; Grossman, Ethan A. <[e-mail]>; 
> [e-mail]; [e-mail]; 
> [e-mail]
> Subject: Re: Barry Leiba's No Objection on draft-ietf-detnet-mpls-11: 
> (with COMMENT)
>
> Hi, Balázs, and thanks for the quick replies on both documents.
>
> > Regarding:
> > - Section 2.1 and having data-plane-framework as informative and not as normative.
> > The reference in section 2.1 is only for the terminology used in the data-plane-framework.
> > That is the reason to have it as an informative reference.
>
> For both documents, the data-plane-framework draft has terminology, at least, that needs to be understood in order to fully understand these documents.  That makes the data-plane-framework draft a normative reference -- it doesn't matter that data-plane-framework is informational... it matters that unless you understand the terminology in data-plane-framework you're missing something with respect to the detnet-mpls docs.
>
> > - Section 4.2.1, clarifying "and (2) to allow non-skip zero S/N what simplifies implementation."
> > Text here intends to refer, that a circular unsigned sequence number 
> > space - including 0 as well - is easier to implement. The Generic PW 
> > MPLS Control Word (PWMCW) defined in [RFC4385] uses a circular unsigned 16-bit number space that _excludes_ the value zero.
>
> Please re-word the text in the document to make it more understandable.  As I say, I can't parse the quoted phrase at all.  I don't know what "non-skip zero" means, and I think the word "what" is not the right word, and doesn't make sense there.
>
> Barry