Perform the tasks in the following sections to prepare the NSX-V environment. What to read next Check the Configurations of the NSX-V EnvironmentCheck your NSX-V environment before starting an end-to-end migration. Configure Hosts Not Attached to vSphere Distributed SwitchesAn NSX-V environment can contain hosts that have NSX-V installed, but are not added to a vSphere Distributed Switch. You must add the hosts to a vSphere Distributed Switch before you can migrate them. Tag Management VMs in a Collapsed Cluster EnvironmentYou can migrate an environment that uses a collapsed cluster. Delete Partner Service DeploymentsIf your NSX-V environment uses a partner service for Guest Introspection, or both Guest Introspection and Network Introspection, delete the partner service deployment before migration. Parent topic: Preparing for an NSX-V with vRA User-Defined Topology Migration