explain working of osi
Encapsulation/De-encapsulation:
•The process of moving data between layers of the OSI Model
•Encapsulation: Data > segment > packet > frame > bits
•De-encapsulation: Bits > frame > packet > segment > data
How Data Moves Through the OSI Model:
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How Data Moves Through the OSI Model |
•Each layer of OSI Model except Physical adds its own header to the data that originated from the operating system
–Adds own header in front of the header from the previous layer
–Header contains information that describes what each layer of the OSI Model should do with the data
•Data Link layer also adds a tailer
–Tailer contains additional information that deals with error correction
Data as It Appears to the System Moving Down the OSI Layers:
Data as It Moves Through OSI Layers, Sent by One Computer and Received by Another
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| Data as It Appears to the System Moving Down the OSI Layers |
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