data link layer
<networking> Layer two, the second lowest layer in the OSI seven layer
model. The data link layer splits data into frames (see fragmentation) for
sending on the physical layer and receives acknowledgement frames. It performs
error checking and re-transmits frames not received correctly. It provides an
error-free virtual channel to the network layer. The data link layer is split
into an upper sublayer, Logical Link Control (LLC), and a lower sublayer, Media
Access Control (MAC).
Example protocols at this layer are ABP, Go Back N, SRP.
(1995-02-14)
Nearby terms:
Dataless Management Services « dataless management
utility « Data Link Connection Identifier « data
link layer » data link level » Data Link
Provider Interface » data logger
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