unicast is the same as a point-to-point connection or private line in a TDM network or a private virtual circuit in an ATM network. IP Broadcast When one or more packets are sent to all hosts or nodes on a network by using a single address, it's referred to as IP broadcast. Sometimes it's called a special form of multi-casting. Ethernet protocol found in LANs uses a scheme whereby all com- munications between devices on a local area network initiate ses- sions between each other by broadcasting or calling to a single address listened to by all the devices on the network. Broadcast Address The address reserved for sending the same packets to all stations on a network is the broadcast address. Broadcast Domain The broadcast domain is a set of devices or network elements that will receive packets from any one of the other devices or elements in the set. Broadcast Storm Sending or broadcasting to all devices on the network simultaneously, requiring bandwidth beyond the cap- acity of the network, causing an overload or crash is a broadcast storm. ISDN Integrated Services Digital Network Latency or Delay The time (in microseconds or milliseconds) be- tween the absolute time a signal is present at the input terminals and the later absolute time the signal appears at the output termin- als of a piece of equipment is called latency or delay. These terms are more broadly used to indicate a similar measure of the time it takes a signal to transit a network. For example, the transit time of a single satellite path consisting of one uplink, the satellite transpon- der, and the downlink is typically 250 milliseconds, while a typical terrestrial path between the same two points will be less than 50 milliseconds. Latency or delay becomes an important consider- ation when these kinds of network links are being planned and implemented to support program production where talent engages in conversation or interviewing. Media Media is the transmission link that carries the content. Examples include coaxial cable, copper wire, radio w