White Box Switches and Cumulus Linux
We bought a few of these for a backnet solution a few years ago as a test case and they worked great (also 1/3 the cost of a comparable Cisco solution)! Easy to manage, configure and secure since it's Linux based. Also available for Mellanox switches as well if you don't want to go the "white box" route. Might be worth a look for anyone looking to move on from Cisco's lack of support for their products.