Which layer of the OSI model does the Logical Link Control operate?

The Logical Link Control (LLC) operates at Layer 2 of the OSI model, which is known as the Data Link layer. This layer is responsible for establishing, maintaining, and terminating connections between two physically connected nodes, and it manages error detection and correction in the data that is transmitted over a physical medium.

The LLC sublayer provides an interface to the Network layer (Layer 3) above it, enabling different network protocols to coexist over the same physical link. It helps in managing communication between various network protocols by framing the data and enabling the correct handling of that data according to the specific needs of the protocols in use. By operating at this layer, LLC ensures that packets are delivered reliably and efficiently between devices on a local area network (LAN) or across more extensive networking infrastructure.