The VCF on VxRail solution natively supports two different multi-site options depending on the distance and latency between the sites and the type of protection needed for the workloads. VxRail vSAN stretched clusters offer multiple availability zones for the Mgmt WLD and VI WLDs. This option is typically only for sites within the same metro area, due to the latency requirements for stretched vSAN. VCF 4.2 and later versions support NSX-T Federation. NSX-T Federation enables support for dual-region VCF instances, which can be located at much greater distances because a stretched cluster is not required.