As pat of creating and HA PVI VNIC, some host-side redundancy is required to configure HA properties for the interface. The host OS HA properties control functions such as failover and failback.
You can configure redundancy for Oracle Linux, Oracle Solaris, and Oracle VM hosts as either link aggregation groups (LAGs) or bonded interfaces. For Oracle VM, you will use the guest OS's tools for configuring HA interfaces.
For Windows or VMware hosts. you create an HA PVI through Oracle Fabric Manager and use the respective HA-interface features (for example, VMware NIC Teaming), and consult the vendor's documentation.