Re: [Bier] RFC8279: Request for authors to update RFC

Greg Shepherd <> Thu, 17 June 2021 14:37 UTC

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From: Greg Shepherd <>
Date: Thu, 17 Jun 2021 07:36:43 -0700
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To: BIER WG <>
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Subject: Re: [Bier] RFC8279: Request for authors to update RFC
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I believe we have a solid group of volunteers to update the doc:

Thank you for your continued contribution to the work and for stepping up
to this task.

- Greg

On Sat, Jun 12, 2021 at 6:05 AM Greg Shepherd <> wrote:

> A big "thank you" to all WG members who have worked so hard to get BIER to
> where it is today. And to no surprise, our work is not done. The following
> bullet points are from the Chairs' technical summary previously sent to the
> list:
> • BIER encoding is specified in RFC8296
> • Alia Atlas: “IANA code-points don’t change.  This is the reason why
> BIER began as experimental - narrow
>         point in hourglass”
> • The encoding at the “narrow point of the hourglass” – the forwarding
> plane –  is the foundation from which
>         the rest of the architecture grows.
> • This was the position of the IESG and the BIER WG ADs at the time of
> the original WG Experimental Charter.
> • This is admittedly historic/institutional knowledge of those involved
> in the WG from the beginning. But it is also
>         a core tenet of the layered and scalable architecture of the
> Internet and was erroneously assumed as
>         well-understood by the original WG contributors. The WG needs to
> update the BIER architecture to make this
>         responsibility clear for all future contributors.
> RFC8279 began as a draft at the very beginning of the WG. It has since
> been made clear that the authors at that time had assumed the importance of
> the forwarding plane as the foundation of architecture was well understood
> by the community at large. That no longer seems to be the case.
> Additionally, the draft of RFC8279 began before the draft of RFC8296 was
> complete, and even before the assignment of the IEEE BIER ethertype.
> This is a call for volunteers to update RFC8279 to better define BIER at
> the forwarding plane, and clarify how IETF-standard encapsulation
> mechanisms can be used to transit BIER packets, while preserving the core
> tenet of a layered and scalable architecture of the Internet.
> If you would like to tackle this update, please reply to this thread.
> Thanks,
> Greg
> (Chairs)