OSI 7 Layer

The Open Systems Interconnection (OSI) model is a conceptual framework used to describe the communication functions of a network. It consists of seven layers, each of which represents a specific function in the communication process. The seven layers of the OSI model, from bottom to top, are: Physical Layer: Deals with the physical characteristics of the communication medium, such as voltage lev..

원문링크 : OSI 7 Layer