arista full tables recommendation

Hi all,

We’re an arista shop (primarily 7050qx-32s, 7050tx, and 7060cx right now) and wanted to get some input on recommendations for “real routers” that can better handle full internet tables. As it is right now we do some creative import filtering to import and inject a handful of routes we care about due to limited fib space and otherwise just use a default received from our carriers, with any particular transit carrier being the “primary” at a given time and using pingcheck to influence that decision.

We’d like to move towards consuming full tables (or at the very least, customer routes) from each of our ISPs - would be grateful for any pointers or recommendations in arista models or family of devices that would be good core/peering routers, especially other than the latest generation. We’d be landing 10g optics from the carriers currently and peering to the downstream switches at 40G or 100G. (frequently we are in the used equipment space for our acquisitions so previous generation or two or three tends to land us in a pretty good spot).

thanks in advance for any advice you can provide!

Alex

Alex,

For that kind scale products in the 7280R3 family with the extra memory (K) SKU’s would be the best fit.

If you need chassis then it would be the 7800R3 chassis products.

This of course assumes new units and not buying resale products.

Kevin

For that kind scale products in the 7280R3 family with the extra memory (K) SKU’s would be the best fit.

K is extra TCAM, the extra ram, M option, may be needed too.

I missed the list off my previous reply (updated) -

We're running 7280SR2K (no -M) and they're capable of handling 3xDFZ + 1xGREN + iBGP + VXLAN in RIB and FIB. We are using FlexCompression or whatever Arista calls their FIB optimization thing.
Other models may require the high-memory option, but the 7280SR2K already comes with it. (So do the newer 7280SR3, no -K or -M needed.)
-Adam

Adam Thompson
Consultant, Infrastructure Services
MERLIN
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