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notes/School/Analyse/Layers/2. Datalink Layer.md

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2. Data link Layer

The Data Link Layer is responsible for handling the data transfer between two devices on the same network. (so a bit like the Network Layer)

The Data Link Layer also splits up packets into smaller chunks called a frame. The reverse happens on the receiving device (reassembling frames into packets).

Like the Network Layer the Data Link Layer is also responsible for flow control and error checking. However it only does this for inter-network communications. (Local network)