Re: Route optimization using GPUs?

[Pedro Prado <pedro.prado () gmail com>]

I'd imagine the GPUs would be used to help the control plane only, to
bulk-process several prefix updates?

*Pedro Martins Prado*
pedro.prado () gmail com / +353 83 036 1875 (FaceTime & WhatsApp)


On Thu, 5 Dec 2024 at 17:58, <sronan () ronan-online com> wrote:

> This is part of why the old systems that were mentioned only optimized the
> top n routes based on traffic flow (or other configurable  metric), because
> the cost vs. benefit falls off greatly.
>
> Shane
>
> On Dec 5, 2024, at 12:52 PM, Andrey Slastenov <a.slastenov () gmail com>
> wrote:
>
> 
>
> +nanog
>
>
> Greetings, Drew
>
> We don't use GPUs, but we have worked on a similar project focused on
> traffic optimization. I would say that the ping issue is one of the top
> pain points, even more significant than route recalculation. The more
> routes you try to monitor and optimize, the more significant the problem
> will become.
>
> Regarding optimization itself, I don't think you would want to optimize
> the entire routing table at the same time. From a calculation perspective,
> I don't believe it's a major problem at this point. Please correct me if
> I'm wrong.
>
>
> Regards,
>
> Andrey
>
> чт, 5 дек. 2024 г. в 18:32, Drew Weaver <drew.weaver () thenap com>:
>
> > So back in the.. hell I don’t know like… early 2010s there was a push for
> > ‘route optimization’ from products like RouteScience and the Avaya CNA and
> > more recently whatever Noction is doing.
> >
> >
> >
> > The big pain point for this technology at the time was that it could only
> > optimize the top N egress routes due to how many probes it could send out
> > and how many results it could process.
> >
> >
> >
> > It seems like now with a modest GPU in a router you could pretty easily
> > ‘optimize’ [to the extent that you believe this technology worked] pretty
> > much the whole routing table.
> >
> >
> >
> > We used these tools extensively back then and they actually worked pretty
> > well in most cases. The biggest issue we ran into was people complaining
> > that we pinged their IP addresses… which now a days seems like a great
> > worst problem to have.
> >
> >
> >
> > Anyway is anyone doing any work on implementing GPUs into the BGP
> > decision making process? Seems like a no brainer.
> >
> >
> >
> > -Drew
>
>
> --
>
>
>
> *Andrey Slastenov*
> Network Expert
> CCIE #19983
> Email:a.slastenov () gmail com