What do you mean by link to link layers of OSI Reference Model explain their functions briefly?

OSI stands for Open System Interconnection is a reference model that describes how information from a software application in one computer moves through a physical medium to the software application in another computer. OSI consists of seven layers, and each layer performs a particular network function.

What is link layer in OSI model?

The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. The data link layer provides the functional and procedural means to transfer data between network entities and may also provide the means to detect and possibly correct errors that can occur in the physical layer.

What does the data link layer specifies in reference to the OSI model?

Data-link layer of the OSI model specifies Data link procedures that provide for the exchange of data via frames that can be sent and received.

What is a link layer address?

A link-layer address is called a link address, called a physical address, and sometimes a MAC address. Since a link is controlled at the data-link layer, the addresses need to belong to the data-link layer. These two addresses are changed every time the frame moves from one link to another. Figure 1.7.

Which layer is responsible for link link communication?

The data link layer
The data link layer has two sublayers. One is the logical link control (LLC) sublayer, which essentially maintains the communications link between two devices on the network. The other is the media access control (MAC) sublayer which manages the transmission of data between two devices.

What is the link layer responsible for?

The data link layer is responsible for multiplexing data streams, data frame detection, medium access, and error control. It ensures reliable point-to-point and point-to-multipoint connections in a communication network.

Where is the link layer implemented?

For the most part, the link layer is implemented in a network adapter, also sometimes known as a Network Interface Card (NIC).

What is important of data link layer?

The main functions of data link layer include framing, error detection and correction, acknowledgement, flow control, ensuring well-defined reliable service interface to the network layer, encapsulating packets from network layer to frames, etc.