Re: Distributed Router Fabrics

[Tom Beecher <beecher () beecher cc>]

>  In the articles I've read and videos I've watched, they have mentioned
> varying amounts of reduced power. I didn't commit them to memory because
> that wasn't the part I was interested in at the moment.


The aggregate power load from the 1U boxes is by itself generally ( but not
always ) going to be less than the equivalent sized big chassis. ( If you
start having to add middle stages that can sometimes not hold true. )

On top of that, many designs allow for DACs to be used for a large
percentage of connections, which also has significant power savings.

On Tue, Dec 24, 2024 at 8:28 AM Mike Hammett <nanog () ics-il net> wrote:

> In the articles I've read and videos I've watched, they have mentioned
> varying amounts of reduced power. I didn't commit them to memory because
> that wasn't the part I was interested in at the moment.
>
> Management of the things is a big thing I've been concerned about going
> into more modern systems. So often there's hand waiving regarding the
> orchestration piece of non-traditional systems. From what I've seen (and I
> would love to be wrong), you either build it in-house (not a small lift) or
> you buy something that ends up taking away all of the cost advantages that
> path had.
>
> Failure domain stuff is part of what I'm trying to learn more about, which
> goes back to more about the fundamentals of how the fabric works.
>
>
>
> -----
> Mike Hammett
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> ------------------------------
> *From: *"Christopher Morrow" <morrowc.lists () gmail com>
> *To: *"NANOG" <nanog () nanog org>
> *Sent: *Monday, December 23, 2024 6:05:12 PM
> *Subject: *Re: Distributed Router Fabrics
>
>
>
> On Mon, Dec 23, 2024 at 10:15 AM Mike Hammett <nanog () ics-il net> wrote:
>
> > Actually, as I read more about it and watch more videos about it, it
> > seems like that isn't necessarily true. The claims they have at the top end
> > surpass what any chassis platform I've seen is capable of, though I don't
> > know that they actually have pushed the upper bounds of what's possible in
> > the real world.
> I wonder how large a failure domain folk are willing to accept.
>
> I also don't know that it's actually better to have 1 thing vs N things,
> since management of the
> things is probably the expensive part (once you get past space/power which
> don't seem to be
> part of the calculations here (not in my brief read of the thread at
> least).
>
> -chris