Broadcast Packet - Network Encyclopedia
Broadcast Packet, or Broadcast Frame, is an Internet Protocol (IP) packet with the IP address 255.255.255.255. In binary notation, this represents a series of 32 binary «ones».
When a computer tries to connect to a network it sends out broadcast packets. Broadcast packets have no specific destination address. Instead, the broadcast packets are meant for all computers on the network. A connecting computer sends those packets to inform all the other computers on the network that it is about to become part of the network. These broadcast packets will switch forward to all computers behind them.