This should be its own page under the network documentation. It is related to the Pod network and allows users to address their VMs within the cluster by using their FQDN - without the need to expose a specific TCP or UDP port.

This is already documented upstream https://kubevirt.io/user-guide/virtual_machines/dns/.

And downstream for Pods https://docs.openshift.com/dedicated/3/architecture/core_concepts/pods_and_services.html#headless-services.

Our downstream documentation should show an example of a Service object that must be created in the namespace, attributes that need to be set on VM spec, and an example of the FQDN user would connect to.