nanog mailing list archives

Re: Route optimization using GPUs?


From: Jason Bothe via NANOG <nanog () nanog org>
Date: Thu, 5 Dec 2024 12:28:36 -0800

Yes, yes, yes and yes


J~

On Dec 5, 2024, at 12:10 PM, Compton, Rich <RICH_COMPTON () comcast com> wrote:

“I strongly recommend to turn off those BGP optimizers, glue the ports shut, burn the hardware, and salt the grounds 
on which the BGP optimizer sales people walked.”
 
-Job Snijders
 
https://mailman.nanog.org/pipermail/nanog/2017-August/092131.html
 
 
From: NANOG <nanog-bounces+rich_compton=comcast.com () nanog org> on behalf of Mike Hammett <nanog () ics-il net>
Date: Thursday, December 5, 2024 at 12:24 PM
To: Jason Bothe <jbothe () me com>
Cc: nanog () nanog org <nanog () nanog org>
Subject: Re: Route optimization using GPUs?

IIRC, the widespread outages are the result of exporting things that shouldn't be exported.



-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com 
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Midwest-IX
http://www.midwest-ix.com 
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From: "Jason Bothe via NANOG" <nanog () nanog org>
To: "Drew Weaver" <drew.weaver () thenap com>
Cc: nanog () nanog org
Sent: Thursday, December 5, 2024 11:03:39 AM
Subject: Re: Route optimization using GPUs?

WIth merchant silicon getting faster and stronger everyday, and capacity and transit in a freewill, I’m not sure what 
GPU optimization would buy you, not to mention the ROI. The Internet routing table is not showing substantial signs 
of growth and in some cases has experienced a plateau. Also, the experience with ‘route optimization tools’ is that 
while they may bring you some priority in your traffic, they are also known for making horrible decisions resulting 
in widespread outages. 
 
J~
 
 
On Dec 5, 2024, at 8:13 AM, Drew Weaver <drew.weaver () thenap com> wrote:
 
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
 
 


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