What is logical link control in networking?

The logical link control (LLC) is the upper sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It acts act an interface between the network layer and the medium access control (MAC) sublayer of the data link layer.

Accordingly, what is the function of Logical Link Control?

The function of the Logical Link Control (LLC) is to manage and ensure the integrity of data transmissions. The LLC provides Data Link Layer links to services for the Network Layer protocols. This is accomplished by the LLC Service Access Points (SAPs) for the services residing on network computers.

Secondly, what is LLC and MAC in networking? In the IEEE 802 reference model of computer networking, the logical link control (LLC) 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 media access control (MAC) sublayer and the network layer.

Also question is, what is the main function of a logical link control sublayer?

The Logical Link Control (LLC) sublayer provides the logic for the data link; thus it controls the synchronization, flow control, and error-checking functions of the data link layer.

What is the difference between LLC and MAC?

Difference between MAC and LLC: The MAC (media access control) layer is the lower part of the data link layer. The MAC layer is used for defining the working or functionality of which is unique for a particular network technology like Ethernet. The LLC layer is used for adding a field to each Ethernet frame.

29 Related Question Answers Found

What is TCP IP layers?

The TCP/IP model is not exactly similar to the OSI model. The TCP/IP model consists of five layers: the application layer, transport layer, network layer, data link layer and physical layer. TCP/IP is a hierarchical protocol made up of interactive modules, and each of them provides specific functionality.

What is HDLC in networking?

High-level Data Link Control (HDLC) is a group of communication protocols of the data link layer for transmitting data between network points or nodes. Since it is a data link protocol, data is organized into frames. A frame is transmitted via the network to the destination that verifies its successful arrival.

What layer is HDLC?

data link

What is the role of data link layer?

It makes sure the appropriate physical protocol is assigned to the data. The data link layer is the second layer in the OSI Model. The three main functions of the data link layer are to deal with transmission errors, regulate the flow of data, and provide a well-defined interface to the network layer.

What do you mean by Ethernet?

Ethernet is a way of connecting computers together in a local area network or LAN. It has been the most widely used method of linking computers together in LANs since the 1990s. The basic idea of its design is that multiple computers have access to it and can send data at any time.

Why is 802.2 necessary?

802.2 is concerned with managing traffic over the physical network. It is responsible for flow and error control. The Data Link Layer wants to send some data over the network, 802.2 Logical Link Control helps make this possible. It also helps by identifying the line protocol, like NetBIOS, or Netware.

What does 802.3 mean?

802.3 is a standard specification for Ethernet, a method of packet-based physical communication in a local area network (LAN), which is maintained by the Institute of Electrical and Electronics Engineers (IEEE). In general, 802.3 specifies the physical media and the working characteristics of Ethernet.

What is LLC and MAC in data link layer?

Data Link Layer. The 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 LLC sublayer deals with addressing and multiplexing.

What are two examples of hybrid topologies?

What are two examples of hybrid topologies? (Choose two.)

partial mesh.
extended star.
hub and spoke.
point-to-point.
full mesh. Explanation: A hybrid topology is one that is a variation or a combination of other topologies. Both partial mesh and the extended star are examples of hybrid topologies.

Which logical address is used for delivery of data to a remote network?

Which logical address is used for delivery of data to a remote network? The destination IP address is used for end-to-end delivery of data to a remote network. The destination MAC address is used for delivery on a local network.

What is true concerning physical and logical topologies?

Physical topologies are concerned with how a network transfers frames. Physical topologies display the IP addressing scheme of each network. Logical topologies refer to how a network transfers data between devices. Explanation: Logical topologies show the way the network will transfer data between connected nodes.

What is the definition of bandwidth quizlet?

bandwidth. defined as the amount of data that can be transmitted in a fixed amount of time. For digital devices, the bandwidth is usually expressed in bits per second(bps) or bytes per second.

What is the purpose of the snap protocol?

SubNetwork Access Protocol (SNAP) refers to a standard used for transmitting IP datagrams across IEEE 802 networks. This means that the IP datagrams can be routed on IEEE 802 networks encapsulated inside the SNAP data link layers 802.3, 802.4 or 802.5, physical network layers, and the 802.2 LLC.

Which data link layer Media Access Control method does Ethernet use?

Four main media access control methods are used in networking: Carrier Sense Multiple Access with Collision Detection (CSMA/CD), which is used in Ethernet networking. Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), which is used in AppleTalk networking.

Which layer is responsible for the encoding of signals?

Data Link layer

What is MAC protocol in computer network?

The Media Access Control (MAC) data communication Networks protocol sub-layer, also known as the Medium Access Control, is a sub-layer of the data link layer specified in the seven-layer OSI model. The medium access layer was made necessary by systems that share a common communications medium.

What is data link layer in OSI model?

The data link layer is the protocol layer in a program that handles the moving of data into and out of a physical link in a network. The data link layer also determines how devices recover from collisions that may occur when nodes attempt to send frames at the same time.