Network, Networking Technology, Data Communication Terms, Glossary and Dictionary

Data Link Control

Data Link Control (DLC) is the service provided by the Data Link Layer at the second lowest layer in the OSI Reference Model. Every network interface card (NIC) has a DLC address or DLC identifier (DLCI) that uniquely identifies the node on the network. For example, Ethernet and Token-Ring use the DLC addresses with a 48 bits number and it is also called MAC address.

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Data Link Control