#The switching technology used in wide area networks is mostly packet switching.
Packet switching is also called packet switching. It divides user communication data into multiple smaller data segments of equal length, and adds necessary control information as data in front of each data segment. The header of the segment. Each data segment with a header constitutes a packet.
The header specifies the address to which the packet is sent. When the switch receives the packet, it will forward the packet to the destination based on the address information in the header. This process is packet switching. A communication network capable of packet switching is called a packet switching network.
The essence of packet switching is storage and forwarding. It temporarily stores the received packets and queues them on the route in the destination direction. When it can send the information, it sends the information to the corresponding route to complete the forwarding. . The process of storage and forwarding is the process of packet switching.
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