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Packet-Switching Networks

In WAN connections that use packet switching, the data is divided into packets. The small packet size used in packet switching provides fast and efficient delivery of data.

Each packet has its own control information and is switched through the network independently. This means that data packets can follow different routes through the WAN cloud and reach the destination out of sequence. Sequencing information included with the packet (it is placed in the packet’s header) is used by the receiving device to reassemble the data in the appropriate order.


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