A vApp consists of one or more virtual machines that communicate over a network and use resources and services in a deployed environment. A vApp can contain multiple virtual machines.
vApps support IPv6 connectivity. You can assign IPv6 addresses to virtual machines connected to IPv6 networks.
VMware Cloud Director places virtual machines, vApps, and disks into the correct set of resources based on the requirements for the entity. If VMware Cloud Director cannot place an entity, to improve the chances of VMware Cloud Director finding the necessary resources, you can try to lower the resource requirements or affinity requirements of the subject entity. If changing the requirements is not possible, your service provider must either change the settings or increase the available resources.