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Re: [Pce] WG adoption poll for draft-stone-pce-local-protection-enforcement-02.

Vishnu Pavan Beeram <vishnupavan@gmail.com> Mon, 09 November 2020 05:52 UTC

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From: Vishnu Pavan Beeram <vishnupavan@gmail.com>
Date: Sun, 08 Nov 2020 23:52:41 -0600
Message-ID: <CA+YzgTsBOp0-7phsJKG+M757k7JMUw2viSB2MCK=jNSzGKgKXA@mail.gmail.com>
To: Dhruv Dhody <dd@dhruvdhody.com>
Cc: pce@ietf.org
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Subject: Re: [Pce] WG adoption poll for draft-stone-pce-local-protection-enforcement-02.
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Dhruv, Hi!

Yes, RFC5420 is the correct reference. I was referring to how the
“Attribute Flags TLV” is processed when present in the LSP_ATTRIBUTES and
LSP_REQUIRED_ATTRIBUTES objects.


A similar approach can be employed for the PCEP LSPA object. This would
need us to (a) Introduce a new flags TLV and (b) Introduce a new
LSPA_REQUIRED/LSPA_ENFORCED object that can carry this TLV when needed.
This can be done now or later when there are more flags defined.



Regards,

-Pavan



On Sun, Nov 8, 2020 at 8:03 AM Dhruv Dhody <dd@dhruvdhody.com> wrote:

> Hi Pavan,
>
> Thanks for participating in the adoption call. Some clarification
> questions...
>
> Could you point the WG to the right reference in RSVP-TE? Is it RFC 5420?
>
> The Stateful-PCE-optional draft is a generic mechanism to mark whole
> PCEP objects as mandatory and optional to process. You are right that
> it doesn't cover local protection enforcement at the granularity of
> the per-attribute in the LSPA object. Please confirm if my
> understanding is correct?
>
> Note that there is a single flag defined in the LSPA object so far, so
> generalizing would help a future flag when and if it gets added. Could
> you suggest what change you would make to turn this procedure generic?
>
> Thanks!
> Dhruv
>
> On Sun, Nov 8, 2020 at 6:06 PM Vishnu Pavan Beeram
> <vishnupavan@gmail.com> wrote:
> >
> > Support adoption! The draft addresses a hole in the existing protection
> toolkit.
> >
> > It would however be useful to have a generic way of requesting or
> mandating each LSP/path attribute (similar to RSVP LSP/HOP attributes). I
> haven't read draft-dhody-pce-stateful-pce-optional, but I'm assuming that
> it doesn't cover local protection enforcement.
> >
> > Regards,
> > -Pavan
> >
> > On Wed, Oct 21, 2020 at 8:41 AM Dhruv Dhody <dd@dhruvdhody.com> wrote:
> >>
> >> Hi WG,
> >>
> >> This email begins the WG adoption poll for
> >> draft-stone-pce-local-protection-enforcement-02.
> >>
> >>
> https://datatracker.ietf.org/doc/html/draft-stone-pce-local-protection-enforcement-02
> >>
> >> Should this draft be adopted by the PCE WG? Please state your reasons
> >> - Why / Why not? What needs to be fixed before or after adoption? Are
> >> you willing to work on this draft? Review comments should be posted to
> >> the list.
> >>
> >> This adoption poll will end on 9th Nov 2020 (Monday).
> >>
> >> Thanks!
> >> Dhruv & Julien
> >>
> >> _______________________________________________
> >> Pce mailing list
> >> Pce@ietf.org
> >> https://www.ietf.org/mailman/listinfo/pce
>

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