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23 statements · 22% with external sources · numbers in brackets are citations
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8 identifiers linking data-link layer across the web's reference databases
23 statements · 22% with external sources · numbers in brackets are citations
8 identifiers linking data-link layer across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer.