The OSI model (Open Systems Interconnection Model) is a conceptual framework used to describe the functions of a network system. It is a universal set of rules and requirements that enable interoperability between different products and software. The OSI model takes a complex system and divides it into several discrete layers based on the various tasks performed by network protocols. This abstraction makes it easier to solve problems, identify security risks, and describe network layer attacks. The OSI model was first developed in the late 1970s to support the emergence of various computer network methods that were competing to be applied in major national networking initiatives around the world.
It was adopted by major IT and telecommunications companies in the early 1980s, and has since become an important piece for both professionals and non-professionals, as well as in all networks between one or several parties. The OSI provides a mental model of how networks work, including a description of the various functions that are performed to make network communications possible. The OSI reference model is still applicable today to standardize the network system. It is easy-to-use and commonly accepted framework, making it an invaluable tool for expanding the visibility of your organization's network. To learn more about using the OSI model to improve your network security, don't hesitate to request a free demonstration of Check Point Quantum Network Security.