If you're migrating from NSX-V to NSX-T, you can move your existing security policy
to your new deployment.
If you are moving from an NSX-V deployment to an NSX-T deployment or combining an
NSX-T deployment with an NSX-V deployment, you can extend your existing security
policy from NSX-V to NSX-T without having to recreate the policy rules. This is
achieved by leveraging your existing device groups and sharing them between the
NSX-V and NSX-T service definitions. After migrating your policy to NSX-T, you can
continue using the VM-Series for NSX-V or remove your NSX-V deployment.