Before I describe about the OSI layer, you should know how exactly it works in sequence, which would help in remembering it. Oct 10, 1999 In this model, a layer in your network works with the layers immediately above and below it, meaning tools in Layer 4 work directly with tools in Layers 3 and 5. (nic, cabling, etc) Data turns that signal into data by creating frames. The Transfer Control Protocol/Internet Protocol (TCP/IP) is older than the OSI model and was created by the US Department of Defense (DoD). It is a conceptual model that is used to understand computer networks. A key difference between the models is that TCP/IP is simpler, collapsing several OSI layers into one: OSI layers 5, 6, 7 are combined into one Application Layer in TCP/IP The OSI model is not protocol specific, but instead different protocols belong in different layers. The OSI model is a conceptual framework that is used to describe how a network functions. D. daveshel Diamond Member. osi 7 layer model The OSI, or Open System Interconnection, model defines a networking framework for implementing protocols in seven layers. The TCP/IP model was very loosely described as having layers. The goal is to set a standard for how communicating over a network should look. In plain English, the OSI model helped standardize the way computer systems send information to each other. OSI Reference Model Layer Mnemonics. Very Easy way to remember OSI & TCP/IP Model for Exams. I've at least memorized the OSI model but still lost on being able to explain and remember it easily. The basic reference model is just another way to describe the 7-layer model. The TCP/IP model was fleshed out in the 1970s (yes, you read that right) by DARPA, an agency of the United Stated Department of Defense. I really like the way Microsoft describes the OSI model. The Open Systems Interconnection (OSI) layer model is a way of describing communications by computer systems over networks. Control is passed from one layer to the next, starting at the application layer in one station, proceeding to the bottom layer, over the channel to the next station and back up the hierarchy. Yes, that’s right, it predates the noted OSI model. Title says it all, how do you guys explain this model or remember it and what each part does? If you spend any amount of time at all dealing with networking design or implementation issues, or learning about how the various protocols operate, the names and numbers of the various layers will eventually become “second nature”. Physical is about physically creating and moving the electronic signal. This article explains the Open Systems Interconnection (OSI) model and the 7 layers of networking, in plain English. OSI vs. TCP/IP Model. You might see this model described as the Internet model or even the DoD Model. 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