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. :)