Re: Arista 7280QR-C36 Viability

[Mike Hammett via NANOG <nanog () lists nanog org>]

Is FIB compression accounted for in their "over 1M" routes claim, or is that on top of the spec?



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

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

----- Original Message -----
From: "Jon Lewis" <jlewis () lewis org>
To: nanog () lists nanog org
Cc: nanog () lists nanog org, "Mike Hammett" <nanog () ics-il net>
Sent: Wednesday, December 3, 2025 7:40:34 PM
Subject: Re: Arista 7280QR-C36 Viability


> On Dec 1, 2025, at 8:57 AM, Mike Hammett via NANOG <nanog () lists nanog org> wrote:
>
> At the risk of the Streisand effect, what am I missing about the Arista 7280QR-C36? It looks like a great router for 
> small ISPs (great price, large packet buffers, good port selection, meaningful hardware routes). That said, it looks 
> to be right on the border of DFZ viability. It supports "over 1M" routes, but I currently have about 1,036,824 in my 
> route table. How much over is "over"? What happens in EOS when it goes over?

If you let it run out of FIB space, those routes that don’t make it into the FIB blackhole.  FIB compression works 
quite well though, especially if you enable it. :)





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