[mpls] Re: Request WG adoption for draft-jags-mpls-ps-mna-hdr-03.txt

[Greg Mirsky <[e-mail]>]

Hi Haoyu,
I am surprised that the proponents of PSD-based solution use limited impact
on the MPLS label stack depth as an argument while seemingly ignoring the
MSD issue that, in my opinion, might have more severe impact on degrading
the forwarding performance of the already deployed networking devices.

Regards,
Greg

On Wed, Jun 26, 2024 at 12:59 PM Haoyu Song <[e-mail]>
wrote:

> Hi Joel,
>
> I think it's important to support IOAM DEX as specified in RFC9326. I
> don't think it can still be called IOAM DEX if the header format is changed
> in order to fit it in ISD.  As Rakesh has explained, the header itself is
> extensible, and the header size is large with options. Both these make it
> unsuitable for ISD.
>
> Best,
> Haoyu
>
> -----Original Message-----
> From: Joel Halpern <[e-mail]>
> Sent: Wednesday, June 26, 2024 12:35 PM
> To: Loa Andersson <[e-mail]>; mpls <[e-mail]>;
> [e-mail]
> Subject: [mpls] Re: Request WG adoption for
> draft-jags-mpls-ps-mna-hdr-03.txt
>
> Loa, you list three bullet points with three different results. However,
> what has been shown so far seems to correspond to your first case, which
> you state does not justify two solutions. Adopting a post-stack data
> solution before we decide we are in case three, or in case 2 and feel the
> tradeoff is right, seems premature.   It may well be that the ps draft is
> the right starting point once we have agreed on the problems to be solved.
> Which is why I am trying to understand the motivations for Rakesh' iOAM dex
> draft.  (I do think we need to support IOAM DEX.)
>
> Yours,
>
> Joel
>
> On 6/26/2024 3:30 PM, Loa Andersson wrote:
> > Jags, authors, chairs, working group,
> >
> >
> > I support making draft-jags-mpls-ps-mna-hdr a working group document.
> >
> > It has repeatedly been said by those who want ISD-solutions that
> > PSD-solutions ar not needed.
> >
> > I think this is a fundamentally flawed way of asking the question.
> >
> > - if we have a choice between two solutions and they are equally good
> >   for all cases, then it makes sense to try to find consensus for
> > adopting
> >   one of the solutions
> > - if we have a choice between two solutions there both solutions "can
> > do" all
> >   cases, but there one is significantly better for one set of cases
> > and the
> >   other is significantly better for the remaining cases, we should
> > cases we
> >    should seriously consider going for two solutions.
> > - if we we have the a choice between two solutions there one can solve
> > part of
> >   the cases and the other the remaining cases, the we need to go for two
> >   solutions.
> >
> > /Loa
> >
> >
> > Den 2024-06-26 kl. 04:50, skrev Jaganbabu Rajamanickam (jrajaman):
> >>
> >> Hello Chairs,
> >>
> >>    We would like to request WG adoption for draft-jags-mpls-ps-mna-hdr.
> >>
> >>    Updated the draft with the initial review comments and the latest
> >> MNA header format.
> >>
> >>   Welcome your review comments and suggestions.
> >>
> >> Thanx,
> >>
> >> Jags
> >>
> >>
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