Networking Concepts Lesson 05 - OSI - Eric Vanderburg
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The document discusses the OSI reference model and its seven layers - physical, datalink, network, transport, session, presentation, and application layer. It describes the functions of each layer such as physical addressing at the datalink layer, logical addressing and routing at the network layer, and programs accessing network services at the application layer. The document also mentions TCP/IP corresponds to the transport, internet, and application layers of the OSI model and standards such as 802.1 to 802.11 for networking.
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Networking Concepts Lesson 10 part 2 - Security Appendix - Eric Vanderburg
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Networking Concepts Lesson 06 - Protocols - Eric Vanderburg
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The document discusses networking standards and the OSI model. It describes the seven layers of the OSI model from physical to application layer. It explains the OSI model layers in detail and some common problems that can occur at each layer, such as physical interface issues, routing errors, incorrect protocols. The document also covers related topics such as encapsulation, networking standards bodies, and common networking acronyms.
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This document discusses the OSI and TCP/IP layering models for computer networking. It describes the functions of each layer in the OSI model from the physical layer to the application layer. It then discusses issues with the seven-layer OSI model and how TCP/IP is more widely used. The key design principles of the Internet such as scale, incremental deployment, heterogeneity, and the end-to-end argument are also covered.
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The document summarizes a CCNA Complete Guide 2nd Edition book that covers the CCNA 640-802 exam syllabus. It contains theory and practical knowledge needed to pass the CCNA exam and work as a network engineer. The book includes lab setups and outputs to verify concepts. Obtaining this guide is described as the best investment for becoming an accomplished network engineer.
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The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions and communication protocols used in computer networks. It provides a structured approach to understanding and designing network architectures, allowing different systems and devices to communicate with each other effectively.
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Transport Layer: The transport layer ensures reliable end-to-end data delivery between hosts. It segments data from the upper layers into smaller packets, manages data flow, and provides error recovery mechanisms. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) operate at this layer.
Session Layer: The session layer establishes, manages, and terminates communication sessions between applications. It provides services such as session establishment, maintenance, and synchronization, allowing multiple applications to communicate and coordinate their activities.
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Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
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- 1. Chapter 5 Making Networks Work Networking Concepts – Eric Vanderburg ©2005
- 2. OSI Reference Model Application Application Presentation Presentation Session Session Transport Transport Network Network Datalink Datalink Physical Medium Networking Concepts – Eric Vanderburg ©2005 Physical
- 3. OSI Reference Model How to remember this Please Do Not Throw Sausage Pizza Away Think of your own… 3 Sections of the Model Application Transport Application Layer (7) Presentation Layer (6) Session Layer (5) Transport Layer (4) Network Network Layer (3) Datalink Layer (2) Physical Layer (1) Networking Concepts – Eric Vanderburg ©2005
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