Open systems interconnection (OSI) can broadly be defined as the model layer responsible for moving data in between a network computer to the Internet or intranet network control.
The OSI can be broken down into an additional seven different subsections. Each of these subsections have their own function in contributing to the OSI model. These subsections include the physical elements of OSI (responsible for the physical aspects); data link (responsible for which data is being transferred); the network (responsible for how the data is being transferred); status of transfer of information (such as error reports or task completed correctly); the session layer (which determines which computers are talking to each other and for how long); presentation (which is responsible for aesthetics and encryption); and the interface.
The logical link control is part of the OSI model. It falls under the data link subsection. The logical link control sends messages to the adapter card, controls the flow of data being sent from the network computer to the adapter and corrects data transfer errors. The logical link control also sends the information to the network device.
There are several types of network devices such as: the network bridge, switch, hub and router. When the logical link control sends the data transmission to a router, the logical link control becomes known as a routed LLC.
