For earlier versions of NSX, a vSphere Enterprise Plus license is required for the vSphere Distributed Switch 7.0 feature. Starting NSX 3.1.1, the NSX Data Center and NSX Firewall licenses support the use of vSphere Distributed Switch 7.0 for all editions of VMware vCenter and vSphere.
Note: With NSX licenses, you get an equivalent number of CPU licenses to use the vSphere Distributed Switch feature. However, the NSX licenses do not provide an upgrade to vSphere Enterprise Plus. The NSX licenses only apply to VDS on the hosts where
NSX is deployed.