Data is divided into packets at the source end

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Data packet is like a parcel, which is the basic unit for transmitting data in the network.. Email List  It divides the data to be transmitted into small pieces, each of which is a data packet. These data packets are transmitted in the network, and finally reassembled into complete data after reaching the destination.

Header: Contains some control information, such as source address, destination address, protocol type, etc., used for routing and transmission.Data: The actual data transmitted, which can be text, image, audio, video, etc.Trailer: Contains information such as checksum, which is used to detect whether errors occur during data transmission.Segmented transmission: Divide large blocks of data into small pieces to facilitate network transmission and management.

Routing: Through the address information in the header, the data packet can find the correct path in the network.
Error detection: The checksum in the trailer can detect whether errors occur during data transmission.
Traffic control: By controlling the rate at which packets are sent, network congestion can be avoided.
Transmission of packets in the network

Encapsulation: Data is divided into packets at the source end, and headers and trailers are added.
Transmission: Data packets are transmitted in the ne

Encapsulation: Data is divided into packets at the source end, and headers and trailers are added.
Transmission: Data packtwork, passing through multiple routers.
Routing: Routers select the appropriate path to forward packets based on the address information in the packet.
Decapsulation: After the packet reaches the destination, it is disassembled and the data part is extracted.