What is the purpose of the sequencing function in network communication?
The sequencing function in network communication serves the purpose of ensuring that data packets are received and processed in the correct order at the receiving end.
In network communication, data is typically divided into smaller packets for transmission over the network.
These packets may travel through different paths and can arrive at the destination in a different order than they were originally sent.
The sequencing function helps to reorder and reconstruct these packets based on their sequence numbers.
By assigning a unique sequence number to each packet, the sender can indicate the correct order in which the packets should be reassembled at the receiver.
The sequencing function at the receiver’s end checks the sequence numbers of the incoming packets and reassembles them in the correct order, ensuring that the original data is reconstructed accurately.
Additionally, the sequencing function also helps in detecting and handling packet loss or duplication. If a packet is lost during transmission, the missing packet can be identified by the gap in the sequence numbers. The receiver can request the retransmission of the missing packet. Similarly, if a duplicate packet is received, it can be discarded to avoid processing duplicated data.
In summary, the sequencing function plays a critical role in network communication by ensuring that data packets are received and processed in the correct order, handling packet loss and duplication, and enabling reliable and accurate data transmission.
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