In NSX for vSphere 6.2.4 and later releases with NSX for vSphere Endpoint license, you see this symptom:
When deploying DSVA from NSX Manager, the Missing Dependencies with VMware Network Fabric Services alert may pop up.
For additional information, see Trend Micro Solution ID 1114473 - Compatibility between VMware NSX 6.2.3 and NSX 6.2.4 with Deep Security.