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Re: [Rift] RIFT agenda addition: Discussion on AIDC and RIFT

Tony Przygienda <tonysietf@gmail.com> Thu, 27 July 2023 17:01 UTC

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From: Tony Przygienda <tonysietf@gmail.com>
Date: Thu, 27 Jul 2023 10:00:37 -0700
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To: "Jeffrey (Zhaohui) Zhang" <zzhang=40juniper.net@dmarc.ietf.org>
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Subject: Re: [Rift] RIFT agenda addition: Discussion on AIDC and RIFT
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since this is in context of RIFT do have a good look at Dima's powerpoint
with dragonfly+ topology and you'll see that the topology is _almost_ there
to have RIFT working perfectly on it. It's basically homomorphic to a
multiplane CLOS with the planes missing the rings to have enough topology
at the top for negative disaggregation to work correclty per figure 13 in
the draft. With that you'll have all the RIFT goodies that satisfy lots and
lots of requirements the presenters discovered and struggle with ;-) As to
the specific solutions of fiddle IGP metrics to influence behavior,
building BGP policy VPN symphonies while broadcasting stuff all over the
place I probably have some quick comments on the mike.

-- tony

On Wed, Jul 26, 2023 at 4:24 PM Jeffrey (Zhaohui) Zhang <zzhang=
40juniper.net@dmarc.ietf.org> wrote:

> Hi,
>
> There is a slight change in the agenda - the last item (previous on RIFT
> multicast) is now replaced by an open discussion on RIFT and AI/ML DC.
>
> There were some presentations in AIDC side meeting and RTGWG session on
> Dragonfly/Dragonfly+/Megafly topologies (links below) and we would like to
> discuss how RIFT plays into that.
>
>
> https://datatracker.ietf.org/meeting/117/materials/slides-117-rtgwg-2-dps-slides-117-rtgwg-sessa-2-dps
>
> https://datatracker.ietf.org/meeting/117/materials/slides-117-rtgwg-sessa-14-dragonfly-routing
>
> Thanks.
> Jeff & Jeffrey
>
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