A Evaluation of OSI Reference model and Comparison with TCP/IP Model

OSI (Open Systems Interconnection) layered model was created by the International Organization for Standardization (ISO). 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. It addresses every process which is required for effective communication and divides it's into logical grouping called layers. When a communication system is designed in this manner, it is known as layered architecture.