Since I have all my OpenStack environment running inside UNetLab, it makes it really easy for me to extend my L3 fabric with a switch from another vendor. In my previous posts I’ve used Cisco and Arista switches to build a 4-leaf 2-spine CLOS fabric. For this task I’ve decided to use a Cumulus VX switch which I’ve downloaded and imported into my lab. To simulate the baremetal server (10.