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data link layer

data link layer

Noun

pl: data link layers

This term is a technical specification within the OSI model, specifically referring to Layer 2. It operates between the physical layer and the network layer, focusing on the reliable transmission of data frames between two directly connected nodes.

In professional networking contexts, this layer is often discussed in terms of MAC (Media Access Control) and LLC (Logical Link Control) sublayers. It is a highly specialized term used almost exclusively in computer science, telecommunications, and network engineering.

Meanings

Noundata link layer

The second layer of the Open Systems Interconnection (OSI) model that provides node-to-node data transfer and handles error detection and flow control over a physical medium.

The network engineer configured the data link layer to ensure frames were delivered without errors.

Last Updated: July 13, 2026•Report an Error