data link layer


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Related to data link layer: Transport layer

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.

data link layer

The services in the OSI protocol stack (layer 2 of 7) that manage node-to-node transmission. See data link protocol, OSI model and MAC layer.
References in periodicals archive ?
Symmetric encryption can be applied at different layers of the communication stack such as the data link layer (e.
The user can elect to manipulate the physical and data link layers directly, or the exerciser's built-in automatic logic will manage the majority of the layer-to-layer data interchange with only limited user control possible.
Bridges are devices that connect similar and dissimilar LANs at the data link layer (layer 2), regardless of the physical layer protocols or media being used [14, 20].
The LIN Diagnostic and Configuration Specification states the service that can be layered on top of the data link layer to provide information for diagnostic messaging and node configuration.
It is specifically designed for point-to-point links within routed networks, and provides only the Data Link layer features required for protocol identification and transmission error detection.

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