Re: [Bier] Deborah Brungard's Block on charter-ietf-bier-01-06: (with BLOCK)

Alia Atlas <akatlas@gmail.com> Thu, 22 February 2018 22:35 UTC

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From: Alia Atlas <akatlas@gmail.com>
Date: Thu, 22 Feb 2018 17:35:09 -0500
Message-ID: <CAG4d1rcgHpRWSGqMj+zq8qMR4zVLRDLCmiGhsAzXRKws5UDJ9Q@mail.gmail.com>
To: Toerless Eckert <tte@cs.fau.de>
Cc: Deborah Brungard <db3546@att.com>, The IESG <iesg@ietf.org>, BIER WG <bier@ietf.org>, bier-chairs@ietf.org
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Subject: Re: [Bier] Deborah Brungard's Block on charter-ietf-bier-01-06: (with BLOCK)
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Hi Toerless,

TEAS can also do OSPF/ISIS signaling work for TE, just like BIER can for
BIER.

We can revisit if necessary - but this seems like the cleanest split at
this time.

Regards,
Alia

On Thu, Feb 22, 2018 at 4:51 PM, Toerless Eckert <tte@cs.fau.de> wrote:

> Thanks, Alia, Deborah:
>
> Yes, BIER-TE is about the explicit traffic steering in the forwarding
> plane,
> Using TE in the name was just the easiest marketing name to make
> readers understand it, even if some other variation of the name
> might have been more precise.
>
> Wrt to the proposed "No control-plane work will be done in BIER-WG"
>
> What is the logic of selecting a working group for e.g.: IGP extensions
> that we may want to have for BIER-TE ? I see ISIS/OSPF extensions for
> BIER which have been done in BIER, not in those IGPs WGs (or LSR upcoming).
>
> I had already reached out to PCE WG to explain BIER-TE, will
> also reach out to TEAS, so definitely interested to figure out what
> the best WG for each part of the solution. I am only worried that
> the charter statement would preclude decisions e.g.: in TEAS like
> "this part of signaling, please do it in BIER WG".
>
> Just paranoid we're not going to be out of options if TEAS
> decides something like that.
>
> Cheers
>     Toerless
>
> On Thu, Feb 22, 2018 at 02:54:22PM -0500, Alia Atlas wrote:
> > Hi Deborah,
> >
> > How about instead of:
> >
> > OLD
> >   8) BIER Traffic Engineering: Definition of an architecture, and
> >        specification of the associated technology, for a BIER-based
> >        mechanism to support traffic engineering."
> >
> > NEW
> >   9) Forwarding Plane Mechanisms for BIER Traffic Engineering:
> definition of
> >       how the new BIER forwarding plane structures (e.g. BIFT) can be
> used
> > to
> >       support engineered multicast trees.  No control-plane work will be
> > done in BIER-WG.
> >
> > and the WGs to coordinate with will have added:
> >
> >  * teas on control-plane mechnisms to use BIER-TE forwarding mechanisms.
> >
> > Regards,
> > Alia
> >
> > On Wed, Feb 21, 2018 at 8:08 PM, Deborah Brungard <db3546@att.com>
> wrote:
> >
> > > Deborah Brungard has entered the following ballot position for
> > > charter-ietf-bier-01-06: Block
> > >
> > > When responding, please keep the subject line intact and reply to all
> > > email addresses included in the To and CC lines. (Feel free to cut this
> > > introductory paragraph, however.)
> > >
> > >
> > >
> > > The document, along with other ballot positions, can be found here:
> > > https://datatracker.ietf.org/doc/charter-ietf-bier/
> > >
> > >
> > >
> > > ----------------------------------------------------------------------
> > > BLOCK:
> > > ----------------------------------------------------------------------
> > >
> > > While a Discuss, this should be simple to address as I think it's a
> bit of
> > > a misnomer
> > > which Alvaro has already noted.
> > > About:
> > > "8) BIER Traffic Engineering: Definition of an architecture, and
> > >    specification of the associated technology, for a BIER-based
> > >    mechanism to support traffic engineering."
> > >
> > > Looking at the wg draft (which it seems this new charter item is based
> on),
> > > the draft says:
> > > "It does support traffic engineering by explicit hop-by-hop forwarding"
> > > and "it is more similar to SR than RSVP-TE".
> > >
> > > So it is not TE, it is explicit forwarding. As Alvaro noted, this
> should
> > > not
> > > be identified in the charter as TE. I don't see any need for this new
> item
> > > to
> > > be in the charter (as Alvaro noted).
> > >
> > > This is a Discuss because if this is not a simple misnomer, then this
> work
> > > clashes with TEAS. TEAS is chartered and responsible for
> > > "Traffic-engineering
> > > architectures for generic applicability across packet and non-packet
> > > networks.
> > > This includes both networks that include the use of PCE and those that
> do
> > > not."
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > BIER mailing list
> > > BIER@ietf.org
> > > https://www.ietf.org/mailman/listinfo/bier
> > >
>
> --
> ---
> tte@cs.fau.de
>