The OSI Reference Model free essay sample

A paper which looks at the seven layers which make up the OSI Reference model which has described the rules and procedures as to how applications running upon network devices may communicate with each other. This paper shows how the OSI Reference model was first introduced in 1984, and was primarily designed to serve as an abstract model. However it has proved to be a practical framework and a majority of the present eras network technologies are developed based on this model. The paper discusses the seven layers which make up the OSI model Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer and Application Layer. In internetworking terms, the OSI model refers to a vertical stack of layers. It is also known as Open Interconnection reference model. It is generally defined in terms of two primary layers, the upper layer and the lower layer. The upper layers of OSI model consists of software that provide certain network services like encryption, providing interface and connection management. We will write a custom essay sample on The OSI Reference Model or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page On the other hand, the lower layers of OSI perform functions like routing, logical addressing, error correction and flow control.