Data Link Layer is another name for OSI Layer 2. Data Link Layer is the OSI Layer layer which is responsible for managing access to physical media and managing data transmission between adjacent network nodes in a wide area network (WAN) or between nodes in an area network segment. same local (LAN).The process includesMAC (Media Access Control)and LLC (Logical Link Control).Additionally it leads to protocols such as Ethernet and Wi-Fi.
More About OSI Layer 2
The important role of OSI Layer 2 is to present data which will later be absorbed into the program.The functions, protocols and technologies in this layer are described as follows.
Data Link Layer is
OSI Layer 2 Functions
This second layer has several main functions in a computer network.Layer 2 is responsible for managing access to physical media, such as Ethernet cables or wireless channels.This is to ensure multiple devices can share media efficiently.
This layer is also responsible for managing data transmission in the form of frames.This process means dividing data into smaller units to send over the network.The Data Link Layer also provides unique physical addresses.The system is known as a MAC address, for each device on the network.Additionally, the layer can handle the detection and correction of errors that occur during data transmission.Checking is carried out using methods such as checksum or CRC (Cyclic Redundancy Check).
OSI Layer 2 protocol
The OSI Layer 2 protocol is described as a procedure used to regulate communications at the Data Link Layer.Examples are Ethernet used in cable networks, Point-to-Point Protocol (PPP), HDLC and ADCCP for point-to-point (dual-node) connections, as well as the Wi-Fi protocol used in wireless.These protocols define how access to physical media is regulated and managed.This includes sharing data frames, MAC addressing, and detecting errors in data transmission.The function of using protocols in OSI Layer 2 is to determine how devices detect and recover from collisions and even reduce or prevent them.
OSI Layer 2 technology
The second layer has the technology used to manage communications at the Data Link Layer.Some commonly used technologies include Ethernet, Token Ring, and Wi-Fi.Ethernet uses copper or fiber optic cables to connect devices.Meanwhile, Token Ring uses tokens to manage access to physical media.Wi-Fi usesWireless Technologyto allow devices to connect without using cables.These systems play an important role in providing efficient connectivity to computer networks.
So OSI Layer 2 plays an important role in physical access, frames, MAC addressing, and error detection.Various systems are used in layers to ensure efficient and reliable communication in a computer network
Examples of data link protocols are Ethernet for local area networks (multi-node), Point-to-Point Protocol (PPP), HDLC and ADCCP for point-to-point (dual-node) connections.
