Open networking Solution recommendation? Software + Hardware?

Hey guys,

I have a customer currently running a bunch of Cisco (Catalyst 9ks + Nexus 9ks/3ks) and Arista switches. They are looking for an open networking solution and it looks like there’s a lot of options out there. Is there any in specific that you guys have experience with and that may recommend?

We’ve looked into Cumulus (Owned by VMWare) and BigSwitch (Owned by Arista now) in the past.

I know the Cisco catalyst chipsets don’t support open networking but the Aristas do so it is most likely coming down to purchasing new hardware that is also compatible with the solution.

Any info or insights that you guys have will be greatly appreciated.

Thanks.