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In computer networking there is a seven layer OSI model and the LLC or logical link control layer is a data communication protocol layer which is the upper sublayer of the second OSI layer known as the data link layer. The main characteristic of the LLC sublayer is that it provides multiplexing mechanisms that allow for a number of different network protocols like IPX, AppleTalk and IP to work over the same network as well as allow them to exist together within a multipoint network.
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Difference between media access control and LLC?
* MAC sublayer(802.3): defines how to transmit data on physical layer * LLC sublayer(802.2): responsible for identifying different protocol logically & encapsulate them.
Which sublayer of OSI model does the network adapter card driver operate?
I just read something on this the other day. It'll take more research but I think I remember the literature saying LLC (Logical Link Control) sublayer. Which makes sense. LLC is more involved with communicating with logical addressing and the communication that takes place with the layer above it (layer 3 "Network"). I'm pretty sure this is where the drivers come in. Double check though. I could be wrong. Interesting though. Here's something to the contrary. http://en.wikipedia.org/wiki/Network_Driver_Interface_Specification
Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
MAC
What are the sublayers of the data link layer as defined in the IEEE 802 standards?
Logical Link Control sublayerThe uppermost sublayer is Logical Link Control (LLC). This sublayer multiplexes protocols running atop the Data Link Layer, and optionally provides flow control, acknowledgment, and error notification. The LLC provides addressing and control of the data link. It specifies which mechanisms are to be used for addressing stations over the transmission medium and for controlling the data exchanged between the originator and recipient machines. Media Access Control sublayerThe sublayer below it is Media Access Control (MAC). Sometimes this refers to the sublayer that determines who is allowed to access the media at any one time (usually CSMA/CD). Other times it refers to a frame structure with MAC addresses inside.There are generally two forms of media access control: distributed and centralized. Both of these may be compared to communication between people. In a network made up of people speaking, i.e. a conversation, we look for clues from our fellow talkers to see if any of them appear to be about to speak. If two people speak at the same time, they will back off and begin a long and elaborate game of saying "no, you first".The Media Access Control sublayer also determines where one frame of data ends and the next one starts -- frame synchronization. There are four means of frame synchronization: time based, character counting, byte stuffing and bit stuffing.The time based approach simply puts a specified amount of time between frames. The major drawback of this is that new gaps can be introduced or old gaps can be lost due to external influences.Character counting simply notes the count of remaining characters in the frame's header. This method, however, is easily disturbed if this field gets faulty in some way, thus making it hard to keep up synchronization.Byte stuffing precedes the frame with a special byte sequence such as DLE STX and succeeds it with DLE ETX. Appearances of DLE (byte value 0x10) has to be escaped with another DLE. The start and stop marks are detected at the receiver and removed as well as the inserted DLE characters.Similarly, bit stuffing replaces these start and end marks with flag consisting of a special bit pattern (e.g. a 0, six 1 bits and a 0). Occurrences of this bit pattern in the data to be transmitted is avoided by inserting a bit. To use the example where the flag is 01111110, a 0 is inserted after 5 consecutive 1's in the data stream. The flags and the inserted 0's are removed at the receiving end. This makes for arbitrary long frames and easy synchronization for the recipient. Note that this stuffed bit is added even if the following data bit is 0, which could not be mistaken for a sync sequence, so that the receiver can unambiguously distinguish stuffed bits from normal bits.
What OSI layer is 802.2 LLC Specified at?
layer 2
What Data Link sublayer manages flow control?
LLC (Logical Link Control) sublayer - The LLC provides a common interface and supplies reliability andflow control services.Hope this helps,A. York
Difference between media access control and LLC?
* MAC sublayer(802.3): defines how to transmit data on physical layer * LLC sublayer(802.2): responsible for identifying different protocol logically & encapsulate them.
What layer has been subdivided into the Logical Link Control sublayer and the Media Access Control sublayer?
The Data Link layer of the OSI model has been subdivided into the Logical Link Control (LLC) sublayer and the Media Access Control (MAC) sublayer. The LLC sublayer is responsible for providing error control and flow control, while the MAC sublayer manages access to the physical transmission medium and the addressing of devices on the network. This division allows for more efficient data handling and communication in network environments.
What are two primary responsiblity of ethernet mac sublayer?
No, frame delimiting is a primary responsibility of the Logical Link Control sublayer of the Data Link Layer.. Data link layer exists of 2 sublayers; Media Acces control Sublayer (MAC) & Logical Link Control sublayer (LLC)
What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame?
LLC Logical Link Control
Which two statements describe features or functions of the logical link control sublayer in ethernet standerds?
The Logical Link Control (LLC) sublayer in Ethernet standards is responsible for managing communication between the network layer and the data link layer, providing identification and encapsulation for different network protocols. It enables multiple network protocols to coexist over the same physical medium by using protocol identifiers, allowing for efficient data transmission. Additionally, the LLC sublayer handles error detection and flow control, ensuring reliable communication between devices on the network.
What is a product of LLC sublayer?
The LLC (Logical Link Control) sublayer is part of the data link layer in the OSI model, primarily responsible for managing communications between devices over a network. Its main products include the framing of data packets, error detection and correction, and providing multiple network protocols with access to the same physical medium. This allows different protocols, such as IP and IPX, to coexist on the same network while ensuring reliable data transmission.
Which sublayer of OSI model does the network adapter card driver operate?
I just read something on this the other day. It'll take more research but I think I remember the literature saying LLC (Logical Link Control) sublayer. Which makes sense. LLC is more involved with communicating with logical addressing and the communication that takes place with the layer above it (layer 3 "Network"). I'm pretty sure this is where the drivers come in. Double check though. I could be wrong. Interesting though. Here's something to the contrary. http://en.wikipedia.org/wiki/Network_Driver_Interface_Specification
What are the sublayers of the Data Link layer are as defined in the IEEE 802 standards?
Logical link control sublayer and media access control sublayer
What are two primary responsibilities of the Ethernet MAC sublayer Choose two?
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
What is LLC in networking?
In networking, LLC stands for Logical Link Control, which is a sublayer of the Data Link Layer in the OSI model. It is responsible for identifying the network layer protocols and managing communication between devices over the same physical medium. LLC provides services such as error checking and frame synchronization, enabling multiple network protocols to operate simultaneously over a single link. It essentially helps facilitate reliable data transfer and flow control in network communications.
Which mac sub layer are used in ieee 802.11 wireless lan?
In IEEE 802.11 wireless LANs, the Medium Access Control (MAC) sublayer consists of two main components: the MAC Control sublayer and the MAC Data sublayer. The MAC Control sublayer is responsible for managing access to the shared wireless medium and handling frame control, while the MAC Data sublayer is tasked with the encapsulation and transmission of data frames. Together, these components ensure efficient communication and coordination among devices in a wireless network.
