Network service types are labels for networks and hypervisor NICs.
To assign networks to network interfaces on your hypervisors, tag the network interfaces with Network service types. Then later, tag your networks to assign them to these network interfaces.
Privileges: Access infrastructure view and Private DCs, View datacenter details, Manage network elements
To create network service types:
In your datacenter, go to Network → Network service types
Click the + add button
Enter the Name of the network service type that the tag will represent
Click Save