Uninstall NSX
To decommission NSX in an old environment, steps included force-removing disconnected NSX controllers via API, backing up NSX Manager, migrating VMs to vLANs, and orderly deleting NSX Edges, Logical Switches, and transport zones. Hosts required maintenance mode for VIB removal and rebooting. NSX Manager was shut down, pending final deletion, and the plugin was manually removed from the MOB. These detailed steps are essential as vendor documentation often lacks offboarding guidance.