Re: [mpls] Consensus poll on Design directive for the MPLS Open DT

Hi Loa,

I have reorganized the OpenDT wiki page, added a page for MIAD and added this text below (as provisional).

I suggest using the terms “in-stack data” (ISD) and “post-stack data” (PSD) for in-stack and after BoS MIAD, respectively.

Kireeti.

> On Aug 24, 2021, at 01:35, Loa Andersson <loa@pi.nu> wrote:
> 
> Working Group, Design Tean,
> 
> The Open DT has discussed the relationship between GAL/G-ACh and the new methods for indicating and transporting ancillary data in and after the label stack.
> 
> We have decided to give the MPLS Open DT the following design directive:
> 
> ---------------------------- start ---------------------------------
> 
> Following the discussion in the MPLS Open DT 2021-08-19 we have have decided to give the MPLS Indicator and Open Design team this design directive.
> 
> RFC 5586 "MPLS Generic Associated Channel" (including the updates by RFC 7274, RFC 6423, RFC 7214, and RFC 7026) will not be changed by the MPLS Open Design Team. The associated channel (GAL/G-ACh) will continue to operate as specified. No changes should be made to the associated channel, without careful coordination with what will be specified by the MPLS Pen design team.
> 
> The Open design team will continue define methods bases on indicators (e.g. FAI-style SPL) and ancillary data.
> 
> A packet can not carry both the associated channel and the new methods for transporting ancillary data indicated by the FAI-style SPL, i.e. the GAL and the FAI-style SPL can not both be present in a label stack. The reason is that the way the ACH is specified there is a high risk of collision of "data after the BoS" specified by other methods.
> 
> ---------------------end --------------------------------------------
> 
> The design team will start working according to this design directive, but for a period of two weeks we will comments on the directive.
> 
> Please send comments to the MPLS wg mailing list (mpls@ietf.org).
> 
> /Loa
> 
> for the co-chairs
> -- 
> 
> Loa Andersson                        email: loa@pi.nu
> Senior MPLS Expert                          loa.pi.nu@gmail.com
> Bronze Dragon Consulting             phone: +46 739 81 21 64
> 
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