In general, to broadcast information is to transmit it to many receivers. For example, a radio station broadcasts a signal to many listeners, and digital TV subscribers receive a signal that is broadcast by their TV provider. In computer networking, broadcasting is the process of sending data packets to multiple recipients all at once. For instance, a local area network can be configured so that any device on the network can broadcast a message to all the others. When a networked device wants to broadcast, it transmits a data packet to the network's broadcast address . The network hardware, such as routers or switches, does the work of sending the packet to every other device in the group. The group of eligible devices is called a broadcast domain . This type of communication is also called all-to-all , because every device can transmit a message simultaneously to every other device. Broadcast networking is supported by IPv4, the network protocol used by most of toda...