If you upgrade to VMware Cloud Foundation 3.10 from an earlier version that deployed vRealize Suite components on a VLAN-backed distributed port group, you can migrate the vRealize products in your environment to use Application Virtual Networks (AVNs). AVNs provide benefits for portability and failover for planned migration or disaster recovery.
By default, new VMware Cloud Foundation installations use NSX Data Center for vSphere to create VXLAN-backed networks, called application virtual networks (AVNs), and deploy vRealize Suite components to these AVNs. Earlier versions of Cloud Foundation deployed vRealize Suite components on a VLAN-backed distributed port group. After upgrading one of these earlier versions to 3.10, Cloud Foundation continues to use VLAN-backed distributed port groups for vRealize Suite components.
If you want to migrate vRealize Suite components to AVNs, contact VMware Support.