Re: Route optimization using GPUs?

[Mike Hammett <nanog () ics-il net>]

True, I didn't even think of all of the upstreams of those networks being responsible for accepting bad routes. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

Midwest-IX 
http://www.midwest-ix.com 

----- Original Message -----

From: "Ryan Hamel" <ryan () rkhtech org> 
To: "Warren Kumari" <warren () kumari net>, "Mike Hammett" <nanog () ics-il net> 
Cc: nanog () nanog org 
Sent: Thursday, December 5, 2024 4:34:44 PM 
Subject: Re: Route optimization using GPUs? 


Warren, 

    * 
"Guns don't kill people, people with guns kill people" may be a factually true statement - but if there were no guns, 
there would be less people being shot… 

While that is also a factually true statement, you are also painting broad strokes over those who are responsible with 
those weapons. Employment requirements, hunting season, target practice at a range, skeet shooting, are just a few 
reasons to have them. Let's not dismiss those who follow the law, get qualified on a regular basis or have adequate 
training when/where/why/how to properly use them. 


"One rotten apple spoils the whole bunch", does not work here. 


This same thing also applies to operators of route optimizers. They are responsible for writing the correct 
import/export policies for their network, just like the carriers for writing sane policies for customer circuits. For 
the incidents those route optimizers have caused, the vendors, their customers, and upstream ISPs are still in 
business. 


Ryan Hamel 







From: NANOG <nanog-bounces+ryan=rkhtech.org () nanog org> on behalf of Warren Kumari <warren () kumari net> 
Sent: Thursday, December 5, 2024 1:17 PM 
To: Mike Hammett <nanog () ics-il net> 
Cc: nanog () nanog org <nanog () nanog org> 
Subject: Re: Route optimization using GPUs? 


                
Caution: This is an external email and may be malicious. Please take care when clicking links or opening attachments. 
















On Thu, Dec 05, 2024 at 3:41 PM, Mike Hammett < nanog () ics-il net > wrote: 





*shrugs* Incorrectly assigning the blame doesn't really help anyone. 








Sure, but the fact remains that there is blame to be assigned. 



It doesn't really matter to the affected network if the fault lies with the box itself, or the operator of the box, or 
the person who makes the morning coffee for the person who operates the box — the fact still remains that this call of 
devices have caused significant disruption for a whole bunch of external networks. 



"Guns don't kill people, people with guns kill people" may be a factually true statement - but if there were no guns, 
there would be less people being shot… 

"Route optimizers don't hijack routes, operators with route optimizers hijack routes" falls into the same category… 



W 






<blockquote>







----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

Midwest-IX 
http://www.midwest-ix.com 



From: "Tom Beecher" < beecher () beecher cc > 
To: "Mike Hammett" < nanog () ics-il net > 
Cc: "Rich Compton" < RICH_COMPTON () comcast com >, nanog () nanog org 
Sent: Thursday, December 5, 2024 2:39:52 PM 
Subject: Re: Route optimization using GPUs? 



<blockquote>
I think most of the hatred towards them is unwarranted, 

</blockquote>


This is essentially saying "I've never had a problem , so I don't think it's a big deal." 


On Thu, Dec 5, 2024 at 3:19 PM Mike Hammett < nanog () ics-il net > wrote: 

<blockquote>



Eh, different people have different opinions. 

I think most of the hatred towards them is unwarranted, 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

Midwest-IX 
http://www.midwest-ix.com 



From: "Rich Compton" < RICH_COMPTON () comcast com > 
To: "Mike Hammett" < nanog () ics-il net >, "Jason Bothe" < jbothe () me com > 
Cc: nanog () nanog org 
Sent: Thursday, December 5, 2024 2:10:47 PM 
Subject: Re: Route optimization using GPUs? 



“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 

Midwest-IX 
http://www.midwest-ix.com 






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~ 







<blockquote>


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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