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..
Regarding this, 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.
Furthermore, why LLC and SNAP headers are used? The SNAP header is used when the LLC protocol carries IP packets and contains the information which would otherwise have been carried in the 2-byte MAC frame type field.
Herein, why IEEE 802 standards are used?
IEEE 802 is a family of IEEE standards dealing with local area networks and metropolitan area networks. The IEEE 802 standards are restricted to networks carrying variable-size packets, unlike cell relay networks, for example, where data is transmitted in short, uniformly sized units called cells.
What is LLC Logical Link Control and why do we need it?
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.
Related Question Answers
What is Ethernet snap?
The Subnetwork Access Protocol (SNAP) is a mechanism for multiplexing, on networks using IEEE 802.2 LLC, more protocols than can be distinguished by the 8-bit 802.2 Service Access Point (SAP) fields.What does sub snap mean?
Those subscriptions are stories either from specific people or content creators on the app that users have more or less followed on Snapchat.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 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.What is MAC layer in networking?
The Media Access Control Layer is one of two sublayers that make up the Data Link Layer of the OSI model. The MAC layer is responsible for moving data packets to and from one Network Interface Card (NIC) to another across a shared channel.What does the LLC layer do?
LLC layer: LLC layer is also known as the logical link control. As it is evident from the name itself that for the data link layer, the LLC layer serves the purpose of providing end to end flow, error control, and multiplexing different protocols over the Mac layer of the data link layer.What is DSAP and SSAP?
SSAP (Source SAP) is an 8-bit long field that represents the logical address of the network layer entity that has created the message. DSAP (Destination SAP) is an 8-bit long field that represents the logical addresses of the network layer entity intended to receive the message.What is the role of LLC sublayer?
Functions of LLC Sublayer The primary function of LLC is to multiplex protocols over the MAC layer while transmitting and likewise to de-multiplex the protocols while receiving. LLC provides hop-to-hop flow and error control. It allows multipoint communication over computer network.What do you mean by IEEE standard?
IEEE. Stands for the "Institute of Electrical and Electronics Engineers" and is produced "I triple E." The IEEE is a professional association that develops, defines, and reviews electronics and computer science standards. Its mission is "to foster technological innovation and excellence for the benefit of humanity."What is IEEE used for?
The Institute of Electrical and Electronics Engineers (IEEE) style is a widely accepted format for writing research papers, commonly used in technical fields, particularly in computer science. IEEE style is based on the Chicago Style.What IEEE 802 protocol?
The IEEE 802 Standard comprises a family of networking standards that cover the physical layer specifications of technologies from Ethernet to wireless. IEEE 802 is subdivided into 22 parts that cover the physical and data-link aspects of networking.What is the 802.11 standard?
802.11 and 802.11x refers to a family of specifications developed by the IEEE for wireless LAN (WLAN) technology. 802.11 — applies to wireless LANs and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS).What is a characteristic of the LLC sublayer?
What is a characteristic of the LLC sublayer? It provides the logical addressing required that identifies the device. It provides delimitation of data according to the physical signaling requirements of the medium.What are the differences of MAC sublayer and LLC sublayer?
The MAC sublayer controls device interaction. The LLC sublayer deals with addressing and multiplexing. Physical addressing for network connections exists at the data link layer. The data link layer combines data bits into entities called frames.What is logical link control in networking?
The Logical Link Control (LLC) layer is one of two sublayers that make up the Data Link Layer of the OSImodel. The Logical Link Control layer controls frame synchronization, flow control and error checking. See a breakdown of the seven OSI layers in the Quick Referencesection of Webopedia.What are the contents of the data field in a frame?
Fields of a Data Link Layer Frame A data link layer frame has the following parts: Frame Header: It contains the source and the destination addresses of the frame and the control bytes. Payload field: It contains the message to be delivered. Trailer: It contains the error detection and error correction bits.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 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. 
