issue has been resolved, we should have L3 vMoition TCP/IP Stack for hot migration or default stack for cold migration 
Hello,    we have new VxRail that will be installed this month with version 7.0.400.  Source: our existing environment consistes of ESXI 6.5 (standard) and vCenter 7 (standard) Destination: will migrate to our vCenter 7.0 U3G ((Standard but will use trial licnese till migration).    we are searching for better migration method and found that cross vcenter migration is the best for our case, we are using "Import VMs from Destination" we tried from our second site wich contain same version for Vxrail (simulate destination) but we faced the below error while importing, could you please advice ?   Error: "vCenter Dosn't support Hosts of this type ()"
VMs Migration to new VxRail cluster