автоматическое удаление клиента из многоадресной рассылки(Ability to automatically remove a client from a multicast group (usually a client with lower bandwidth – to be served via unicast deployment), have it join a different multicast group or to terminate deployment)
пульс многоадресной рассылки(A message sent by nodes in a cluster to continuously maintain communication between cluster nodes. The multicast heartbeat detects and communicates a failure within the cluster. Using a multicast heartbeat lets several unicast messages be replaced by one multicast message)
многоадресная область(A range of multicast group IP addresses in the Class D address range that are available to be leased or assigned to multicast DHCP clients by DHCP)
