Layer 2The data link layer (Layer 2) of the OSI model actually consists of two sublayers: the Media Access Control (MAC) sublayer and the Logical Link Control (LLC) sublayer. The MAC sublayer controls device interaction.
The data link layer encompasses two sub-layers of its own. The first, media access control (MAC), provides flow control and multiplexing for device transmissions over a network. The second, the logical link control (LLC), provides flow and error control over the physical medium as well as identifies line protocols.
Data Link Layer - OSI Model. Data link layer performs the most reliable node to node delivery of data. It forms frames from the packets that are received from network layer and gives it to physical layer. It also synchronizes the information which is to be transmitted over the data.
data link layerThe term layer 2 refers to the data link layer in the conceptual Open Systems Interconnection (OSI) data communication model. The OSI framework includes seven total layers. The data link layer (Layer 2) of the OSI moves data across a linked physical network.
OSI Model Explained: The OSI 7 LayersPhysical Layer.Data Link Layer. ... Network Layer. ... Transport Layer. ... Session Layer. ... Presentation Layer. The presentation layer prepares data for the application layer. ... Application Layer. The application layer is used by end-user software such as web browsers and email clients. ...
The OSI model consists of seven layers: application, presentation, session, transport, network, data link, and physical. The top three layers of the OSI model: application, presentation, and session map to the application layer of the TCP/IP model.Mar 18, 2020
the transport layerLayer 4 of the OSI model, also known as the transport layer, manages network traffic between hosts and end systems to ensure complete data transfers. Transport-layer protocols such as TCP, UDP, DCCP, and SCTP are used to control the volume of data, where it is sent, and at what rate.
Data Link Layer is generally representing protocol layer in program that is simply used to handle and control the transmission of data between source and destination machines. It is simply responsible for exchange of frames among nodes or machines over physical network media.Aug 25, 2020
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.
A data link is a method for connecting one location to another in telecommunications, in order to transmit and receive digital information. Data transfer happens over a certain link protocol that allows data to be transferred from the source to the destination.
The Institute of Electrical and Electronics Engineers (IEEE) has subdivided the data link layer into two sublayers: Logical Link Control (LLC) and Media Access Control (MAC). The Logical Link Control (LLC) sublayer of the data link layer manages communications between devices over a single link of a network.
The Data Link Layer protocols are Ethernet, token ring, FDDI and PPP. An important characteristic of a Data Link Layer is that datagram can be handled by different link layer protocols on different links in a path.