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The Seven Layers of the OSI Model (Cont.) Data Delivery: • Provides connectivity and path selection between two host systems • Routes data packets • Selects best path to deliver data • The Network layer prioritizes data known as Quality of Service (QoS)
Layer 1 – The Physical Layer The physical layer of the OSI model defines connector and interface specifications, as well as the medium (cable) requirements. Electrical, mechanical, functional, and procedural specifications are provided for sending a bit stream on a computer network. Copyright ©2006 Global Knowledge Training LLC. All rights ...
The OSI Model Lesson This diagram shows common network devices and the layer at which they function. In addition, we have some examples of protocols and standards found at each layer. If a device works at any specific layer it also works at all the layers below it. Servers and host computers work at all layers of the OSI
The Open Systems Interconnection (OSI) model was developed by the International Organization for Standardization (ISO), and formalized in 1984. It provided the first framework governing how information should be sent across a network. The OSI model consists of seven layers, each corresponding to a specific network function: 7 Application
OSI model is designed to be a reference model for describing the functions of a communication system. It has seven layers, with each layer describing a different function of data traveling through a network. A reference model is a conceptual blueprint of how communication should take place.
This diagram shows common network devices and the layer at which they function. In addition, we have some examples of protocols at each layer. If a device works at any specific layer it also works at all the layers below it. Servers and host computers work at all layers of the OSI model, whereas network devices are primarily concerned with the
Understanding The OSI 7-Layer Model. The OSI model is a way of describing how different applications and protocols interact on network-aware devices. We explain the role of each layer and of the stack.
