netWave

The O pen S ystem I nterconnection model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology.         The OSI model defines networking in terms of a vertical stack of seven layers.The upper layer of OSI model represent software that implements network service like encryption and connection management.The lower layer of the OSI model implements hardware-oriented functions such as routing ,addressing and flow control.All data that goes over a network connection passes through each of the seven layers.        The OSI model was introduced in 1984.Designed to be an abstract model and teaching tool,the OSI model remains a useful tool for learning about today's network technologies such as Ethernet and Protocols. Seven layers of OSI Physical layer. Data-link layer. Networ...