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Re: [mpls] Poll 1: ISD and PSD in the MNA Framework

"UTTARO, JAMES" <ju1738@att.com> Tue, 31 May 2022 14:47 UTC

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From: "UTTARO, JAMES" <ju1738@att.com>
To: Greg Mirsky <gregimirsky@gmail.com>, Loa Andersson <loa@pi.nu>
CC: "mpls@ietf.org" <mpls@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, DetNet Chairs <detnet-chairs@ietf.org>, "pals-chairs@ietf.org" <pals-chairs@ietf.org>
Thread-Topic: [mpls] Poll 1: ISD and PSD in the MNA Framework
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Date: Tue, 31 May 2022 14:46:45 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/VgZvf6j1kl8ZauNxepiXJE0SJSY>
Subject: Re: [mpls] Poll 1: ISD and PSD in the MNA Framework
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a packet may carry Ancillary Data using one or both of the following
methods:

    (1) in-stack, and

    (2) post-stack.


Agree. It would seem that in-stack would be required for certain FOUs i.e entropy, If both methods are adopted it should be made clear in the framework where FOUs are supported.


“a packet may carry Ancillary Data using one or both of the following
methods:

    (1) in-stack, and

    (2) post-stack.”



From: mpls <mpls-bounces@ietf.org> On Behalf Of Greg Mirsky
Sent: Tuesday, May 31, 2022 10:33 AM
To: Loa Andersson <loa@pi.nu>
Cc: mpls@ietf.org; mpls-chairs@ietf.org; DetNet Chairs <detnet-chairs@ietf.org>; pals-chairs@ietf.org
Subject: Re: [mpls] Poll 1: ISD and PSD in the MNA Framework

Dear Loa, MPLS WG Chairs, Open DT, et al.,
please find my answers to posted questions in-lined below tagged GIM>>.

Regards,
Greg

On Mon, May 30, 2022 at 2:20 PM Loa Andersson <loa@pi.nu<mailto:loa@pi.nu>> wrote:
MPLS working group and and the Open MPLS DT,

The working group chairs believe the current situation is:

The Framework document must be solution independent and say:
GIM>> Agree

a packet may carry Ancillary Data using one or both of the following
methods:

    (1) in-stack, and

    (2) post-stack.
GIM>> Agree

It is up to the document specifying the Network Action to specify which
method is to be used for which Ancillary Data.

Note, a Network Action may not require inclusion of Ancillary Data.
GIM>> I agree with the position stated above.

Is this the consensus of the working group? Please respond to the MPLS
WG mail list.


Loa Andersson
for the Open DT wg chairs

--
Loa Andersson                        email: loa@pi.nu<mailto:loa@pi.nu>
Senior MPLS Expert                          loa.pi.nu@gmail.com<mailto:loa.pi.nu@gmail.com>
Bronze Dragon Consulting             phone: +46 739 81 21 64

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