Editing Logical link control (section)

{{Short description|Sublayer of the Open Systems Interconnection model}}
{{More citations needed|date=June 2022}}
{{OSI model |data}}

In the [[IEEE 802]] reference model of [[computer networking]], the '''logical link control''' ('''LLC''') [[protocol (computing)|data communication protocol]] layer is the upper sublayer of the [[data link layer]] (layer 2) of the seven-layer [[OSI model]]. The LLC sublayer acts as an interface between the [[medium access control]] (MAC) sublayer and the [[network layer]]. 

The LLC sublayer provides [[multiplexing]] mechanisms that make it possible for several network protocols (e.g. [[Internet Protocol|IP]], [[IPX]] and [[DECnet]]) to coexist within a multipoint network and to be transported over the same network medium. It can also provide [[flow control (data)|flow control]] and [[automatic repeat request]] (ARQ) error management mechanisms.