Chapter 5: Data Link Layer Silvia Giordano ICA, EPFL The data-link layeris responsible for transferring a datagram across an individual link.A link isthe communication channels that connect two adjacent hosts or routers. Framing: The term frame refers to a small chunk of data used in a specific network. Framing Methods 1. Bluetooth Low Energy or Bluetooth is a short-range communication protocol with the physical layer and medium access control layer. Examples of data-link protocols for local area networking include the following: IEEE 802.3, which provides the Carrier Sense Multiple Access with Collision Detection access method for baseband Ethernet networksIEEE 802.5, which provides the token-passing access method for baseband token ring implementations; For WANs, data-link layer protocols … Two major classes of protocols, widely used by the data link layer are bit-oriented protocols and character-oriented protocols. The data link layer or layer 2 is the second layer of the seven-layer OSI model of computer networking. The data link layer groups raw data bits to / from the physical layer into discrete frames with error correction / detection code-bits added. Data Link Layer.

Data link protocols may provide any of the following services: Framing Data is broken up into frames that are transmitted as independent units. … The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. Data Link Layer, the second layer of the OSI reference model for computer networking has an objective of transferring reliable, error-free data from one node to another node over the physical layer. OSI Layer 2 - Data Link Layer.

The data link layer provides service to the Network Layer above it: The network layer is interested in getting messages to the corresponding network layer module on an adjacent machine. Physical Addressing: The technique of translating the virtual address into physical address is done at the data link layer. This layer is the protocol layer that transfers data between adjacent network nodes in a wide area network (WAN) or between nodes on the same local area network (LAN) segment. Bluetooth Low Energy. The data link layer is responsible for organizing data in frames and for detecting errors that occur in a frame. Character-oriented protocols use a predefined set of characters to convey the information. The Data Link Layer protocols are Ethernet, token ring, FDDI and PPP. It is widely used in IoT enabled vehicles. Examples of link-layer protocols include Ethernet, token ring, FDDI, and PPP. Data-Link Layer examples. These are only two of the many protocols the data link layer uses to protect information transfer. Other names of protocols are Collision-Free Protocols and High-Level Data Link Control, or … Data Link Layer Protocols. Data Link Layer Protocols. If errors are detected in a frame, it is only necessary to retransmit that frame. How can frame be transmitted so …

Character-oriented Protocols. Bluetooth Low Energy; Z-Wave; ZigBee Smart Energy; LoRaWAN; WirelessHART; LTE-A ; 1.

Its low power consumption can reach ten times less than … The Data link layer Protocol translates the physical layer’s raw bit stream into discrete units (messages) called frames. This chapter examines the structure of a frame, the data link layer flow control schemes, and two of the protocols defined for this layer, namely the high‐level data link control (HDLC) and the point‐to‐point protocol (PPP). Data Link Layer Protocols.

For example, the datagram is handled by Ethernet on the first link, PPP on the second link.