With OMNI, networks created in vCenter are automatically configured in the SmartFabric. OMNI must be able to communicate with the vCenter on the External Management network and with the SmartFabric in each site on the OOB Management network.
OMNI is deployed to the esx-svcs01 host in this example. As an alternative, OMNI can be deployed to a VxRail host in the stretched cluster after VxRail is deployed. However, OMNI requires a connection to the OOB Management network, which may not be available on the VxRail hosts.
The Deploy OMNI chapter of the SmartFabric Services with Multisite vSAN Stretched Cluster Deployment Guide shows how OMNI is deployed and configured on the ESXi services host. The chapter also shows how to verify OMNI-vCenter automation is working properly.