data link layer

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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.
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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.
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References in periodicals archive ?
The adoption of Next Generation systems provides the critical link between the logical view of the network (OSI Layer 2 and above) with the physical configuration of the network (OSI Layer 1).
Here, in our current implementation, we are testing only: ToS, SNR, PER and Transmission Power, which are collected from Application and OWA Layer (OSI Layer 1 and OSI Layer 2) via cross-layer messages (in ns-miracle 1.2.2 this C++ class is XMessage, which saves SNR, PER and Transmission Power parameters in privet variables).