We use this solution for Zero Trust Data Center Segmentation with layer 2 Palo Alto firewalls. Segmentation has allowed us to put servers into Zones based off VLAN tags applied at the Nutanix level and can change "personalities" with the change of a VLAN tag. Palo Alto calls the "Layer 2 rewrite". By default, all traffic runs through a pair of 5000 series PAs and nothing is trusted. All North and South, East and West traffic is untrusted. No traffic is passed unless it matched a rule in the firewalls. There is a lot of upfront work to get this solution to work but once implemented adds/moves/changes are easy.