If you want to delete an overlay but keep your transport nodes in place, follow these steps.

Procedure

  1. In your VM management tool, detach all VMs from any logical switches.
  2. In the NSX Manager UI or API, delete all logical routers.
  3. In the NSX Manager UI or API, delete all logical switch ports and then all logical switches.
  4. In the NSX Manager UI or API, delete all NSX Edges and then all NSX Edge clusters.
  5. Configure a new NSX-T overlay, as needed.