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Re: [mpls] working group adoption poll on draft-bocci-mpls-miad-adi-requirements

Stewart Bryant <sb@stewartbryant.com> Wed, 20 April 2022 17:38 UTC

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From: Stewart Bryant <sb@stewartbryant.com>
To: John E Drake <jdrake@juniper.net>
CC: Stewart Bryant <sb@stewartbryant.com>, Haoyu Song <haoyu.song@futurewei.com>, Tony Li <tony.li@tony.li>, "Dongjie (Jimmy)" <jie.dong@huawei.com>, "mpls@ietf.org" <mpls@ietf.org>, "pals-chairs@ietf.org" <pals-chairs@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "draft-bocci-mpls-miad-adi-requirements@ietf.org" <draft-bocci-mpls-miad-adi-requirements@ietf.org>, DetNet Chairs <detnet-chairs@ietf.org>
Thread-Topic: [mpls] working group adoption poll on draft-bocci-mpls-miad-adi-requirements
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Date: Wed, 20 Apr 2022 17:38:19 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/5K6JpgVaOy8-S0RDRdmP7jAgf0Y>
Subject: Re: [mpls] working group adoption poll on draft-bocci-mpls-miad-adi-requirements
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John is correct

When you pop a stack in programming, the concept that MPLS borrowed, you pop the procedure indicator and the procedure parameters. This is consistent with popping an NAS

Stewart


On 20 Apr 2022, at 18:04, John E Drake <jdrake@juniper.net<mailto:jdrake@juniper.net>> wrote:

Haoyu,

If you consider the NAS as a single entity it is completely consistent with the definition of a stack.  I think this remark is spurious and non-productive.

John

Sent from my iPhone

On Apr 20, 2022, at 12:58 PM, Haoyu Song <haoyu.song@futurewei.com<mailto:haoyu.song@futurewei.com>> wrote:



[External Email. Be cautious of content]



I propose Network Action Sub-stack Indcator (NSI) for this purpose.  Proposed definition:

                            An LSE used to indicate the presence of a Network Action Sub-stack.

We should also revise the definition of NAS to use this.


Hi Tony,

Stack means “first in last out”. It is used for MPLS label stack to describe the label processing procedure.
The encoded ISD is neither labels any more nor a stack in any sense, so both “sub” and “stack” are improper terms in my opinion. Thanks.

Best regards,
Haoyu

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