Circuit and Packet Switching

[highlight]Packet switching is a mode of data transmission in which a message is broken into a number of parts which are sent independently, over whatever route is optimum for each packet, and reassembled at the destination.[/highlight] [h3]Packets[/h3] [ul] [li]Data being transmitted over a network is broken down into packets[/li] [li]Each packet is given a header which contains the IP address of the network and device that it is being sent to.[/li] [li]They also contain a sequence number, so they can be restructured on the other end[/li] [li]They contain [/li] [/ul]