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Dec 21, 2020 · By Chloe Tucker. This article explains the Open Systems Interconnection (OSI) model and the 7 layers of networking, in plain English. The OSI model is a conceptual framework that is used to describe how a network functions. In plain English, the OSI model helped standardize the way computer systems send information to each other.
The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer. [2] The data link layer provides the functional and procedural means to transfer data between network entities and may also ...
- 38 min
- Physical Layer – Layer 1. The lowest layer of the OSI reference model is the physical layer. It is responsible for the actual physical connection between the devices.
- Data Link Layer (DLL) – Layer 2. The data link layer is responsible for the node-to-node delivery of the message. The main function of this layer is to make sure data transfer is error-free from one node to another, over the physical layer.
- Network Layer – Layer 3. The network layer works for the transmission of data from one host to the other located in different networks. It also takes care of packet routing i.e.
- Transport Layer – Layer 4. The transport layer provides services to the application layer and takes services from the network layer. The data in the transport layer is referred to as Segments.
Sep 30, 2024 · Open Data-Link Interface (ODI) was introduced by Novell and Apple. It is used to define the communication mechanism between the network interface card (NIC) drivers and network protocols. It is a software interface that allows different Data-Link Layer protocols to share the same driver or adapter on a computer. It resides in Layer 2, the Data Link
Jun 27, 2024 · OSI model, the transport layer is only connection-oriented. A layer of the TCP/IP model is both connection-oriented and connectionless. In OSI model, data link layer and physical are separate layers. In TCP data link layer and physical layer are combined as a single host-to-network layer. The minimum size of the OSI header is 5 bytes.
The data link layer or layer 2 is the second layer of the seven-layer OSI model of computer networking. 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. [1] The data link layer provides the functional and procedural ...
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1. Physical layer. The Open Systems Interconnection (OSI) model is a reference model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection." [2] In the OSI reference model, the communications between systems are split ...
