This article provides information on the minimum requirements for deploying NSX Guest Introspection.
VMware NSX for vSphere 6.3.x
With vDS setup you can configure large number of host. But If you do not have the vDS, you can use the Specified on Host option in Agent VM Settings.
For more information on how to use the Specified on host option when deploying Guest Introspection, see the NSX 6.x Installation Guide
Notes:
• vDS license is not included in the NSX for Endpoint license and is not mandatory to be part of GI deployment.
• You may select Specified on host option while deploying the GI service on a cluster. For this you must first configure the Agent VM settings for every host in that cluster to ensure that the GI SVM once deployed has a network to connect to so that it may reach the NSX manager