Re: Arista 7280QR-C36 Viability

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

The OS supports it, but I wonder if that command is supported on that hardware or if there are other requirements to 
make that a go.



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

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

----- Original Message -----
From: "Mikael Abrahamsson" <swmike () swm pp se>
To: "Mike Hammett via NANOG" <nanog () lists nanog org>
Cc: "Mike Hammett" <nanog () ics-il net>
Sent: Monday, December 1, 2025 9:04:18 AM
Subject: Re: Arista 7280QR-C36 Viability

On Mon, 1 Dec 2025, Mike Hammett via NANOG 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?

Arista has FIB compression so depending on what your RIB looks like it 
might work out fine. Lots of "it depends".

https://www.arista.com/en/um-eos/eos-ipv4

look for:

"ip hardware fib optimize"

-- 
Mikael Abrahamsson    email: swmike () swm pp se


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