Re: Arista 7280QR-C36 Viability

[Mikael Abrahamsson via NANOG <nanog () lists nanog org>]

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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