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Re: [mpls] draft-ietf-mpls-mna-hdr ready to start the WGLC process

John E Drake <jdrake@juniper.net> Tue, 08 August 2023 13:30 UTC

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From: John E Drake <jdrake@juniper.net>
To: Loa Andersson <loa.pi.nu@gmail.com>, Stewart Bryant <stewart.bryant@gmail.com>
CC: "draft-jags-mpls-mna-hdr@ietf.org" <draft-jags-mpls-mna-hdr@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Thread-Topic: [mpls] draft-ietf-mpls-mna-hdr ready to start the WGLC process
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Date: Tue, 08 Aug 2023 13:30:16 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/kMvNSP-O9Vye7vYfKrMx2LzwLVk>
Subject: Re: [mpls] draft-ietf-mpls-mna-hdr ready to start the WGLC process
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Loa,

I think the text in section 3.1 of the framework draft is correct.  Section 4.1 of the solutions should be updated to indicate that the Format A LSE is the NASI and that it is a bSPL, although this is clearly indicated in section 13.1.

Yours Irrespectively,

John



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From: mpls <mpls-bounces@ietf.org> On Behalf Of Loa Andersson
Sent: Tuesday, August 8, 2023 7:58 AM
To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: draft-jags-mpls-mna-hdr@ietf.org; mpls@ietf.org
Subject: Re: [mpls] draft-ietf-mpls-mna-hdr ready to start the WGLC process

[External Email. Be cautious of content]

Stewart,
Sent from my iPhone


On 8 Aug 2023, at 12:15, Stewart Bryant <stewart.bryant@gmail.com<mailto:stewart.bryant@gmail.com>> wrote:



On 8 Aug 2023, at 10:22, Loa Andersson <loa@pi.nu<mailto:loa@pi.nu>> wrote:

NEW
  *  Network Action Sub-Stack Indicator: The first LSE in the NAS
     that contains a special purpose label, called the MNA label
     (value to be allocated by IANA). This label is used to
     indicate the start of a network action sub-stack, it also
     indicates the presence of MPLS Network Actions in or after the
     stack.
END

Hi Loa

That does not work - there needs to be a secondary indicator for ISD and for PSD

NEW
  *  Network Action Sub-Stack Indicator: The first LSE in the NAS
     that contains a special purpose label, called the MNA label
     (value to be allocated by IANA). This label is used to
     indicate the start of a network action sub-stack.
END

Stewart

I think you you mean that it can either or or both (ISD and PSD) and just the label is not sufficient.

/Loa

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