Re: [mpls] Review and Consensus call on text from the MPLS Open DT on in-stack indicators

bruno.decraene@orange.com Fri, 06 August 2021 12:49 UTC

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From: <bruno.decraene@orange.com>
To: Loa Andersson <loa@pi.nu>
CC: "pals-chairs@ietf.org" <pals-chairs@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, DetNet Chairs <detnet-chairs@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Thread-Topic: [mpls] Review and Consensus call on text from the MPLS Open DT on in-stack indicators
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Date: Fri, 6 Aug 2021 12:49:05 +0000
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Subject: Re: [mpls] Review and Consensus call on text from the MPLS Open DT on in-stack indicators
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Thanks for the work on the proposed summary.

Looks good to me. 

1 comment

>    One proposal is to "re-purpose" an existing bSPL to serve this purpose. However, in order to do this it must be shown that there is no potential interference with the current role of the bSPL. 

>   If we can't demonstrate the non-interference then we should assign specific forwarding action indicator base special purpose label.

I think it would be easier to demonstrate the interference with a single example, rather than requiring a formal demonstration that their can't be interference.
https://en.wikipedia.org/wiki/Burden_of_proof_(philosophy)#Proving_a_negative

IOW, if one believes that there is interference, please explicit the case.

Could this be rephrased along this line?

Thanks,
--Bruno

> -----Original Message-----
> From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Loa Andersson
> Sent: Thursday, August 5, 2021 4:51 PM
> To: mpls@ietf.org
> Cc: pals-chairs@ietf.org; mpls-chairs@ietf.org; DetNet Chairs <detnet-
> chairs@ietf.org>
> Subject: [mpls] Review and Consensus call on text from the MPLS Open DT on in-
> stack indicators
> 
> Working Group, MPLS Open DT,
> 
> The week before IETF 111 the Open DT met and agreed upon a text on
> "indicators". The terminology we use is that somewhere in the label
> stack there is an indicator tell the processing node that a specific
> packet needs a certain set of Forwarding Actions, for example some iOAM
> action might be required. To support the forwarding action there is
> often ancillary data with the packet.
> 
> The text the DT produced is about the indicators, a companion text on
> ancillary data will follow.
> 
> The text was discussed in the Joint meeting and reported to the MPLS
> working group at IETF 111. The Open DT itself can only propose, the text
> is therefore now sent out to the working group for review and consensus
> call.
> 
> The proposed text is found at:
> https://trac.ietf.org/trac/mpls/wiki/2021-07-22-agenda
> 
> Please review the proposed text and comment on the MPLS wg mailing list
> (mpls@ietf.org).
> 
> We plan to keep the consensus call open until 2021-08-20.
> 
> /Loa
> Open DT Co-ordinator / MPLS wg co-chair
> 
> 
> --
> 
> Loa Andersson                        email: loa@pi.nu
> Senior MPLS Expert                          loa.pi.nu@gmail.com
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> 
> _______________________________________________
> mpls mailing list
> mpls@ietf.org
> https://www.ietf.org/mailman/listinfo/mpls

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