Description: Packet reassembly is the process of joining packets that have been fragmented during transmission. In computer networks, data is divided into packets to facilitate its sending across different routes and devices. Each packet contains information about its origin, destination, and sequence, allowing the receiver to reassemble them in the correct order. This process is crucial for ensuring the integrity and coherence of data, especially in protocols like TCP/IP, where reliable data delivery is fundamental. Reassembly occurs at the transport layer of the OSI model, ensuring that all packets arrive complete and in the correct order. If some packets are lost or arrive damaged, the protocol can request their retransmission. This mechanism is essential in applications that require precise communication, such as video streaming, file transfers, and real-time communications. Without proper reassembly, data could arrive incomplete or out of order, affecting application functionality and user experience.
