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Week 5 Osi Model Protocol

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OSI Model Protocol

The OSI (Open Systems Interconnection) model is a logical plan that explains network interactions used by a system open to interconnection and communicate with other systems. The objective of the OSI model is to directly product implementers so that the items will frequently work with the other items. The OSI model is broken into seven layers, each of which presents a collection of services above and below it. The OSI is also of use in a training environment where a novice can use as a guide to source to understand how technologies communicate, where they reside, what functions they will perform and how protocol interacts with other protocols Briscoe, N. (2000).

The primary objective of the OSI model is that the communication between the end points in networks can be separate into different levels with every level having its duties. An OSI determines how the data will flow down the seven layers at the sending end, and how it will move up through the layers at the location end of communication development. The seven layers of the OSI are the physical layer, data-link layer, network layer, transport layer, session layer, presentation layer and the application layer. A physical layer also uses bits as its PDU, which are e-signals represented in digit 1s and 0 Briscoe, N. (2000).

The top four levels are used when a message is being transmitted from one user to another user. The lower three levels are practiced when a message is passing through the main computer. Messages layout for the computer to go through to the top levels and messages meant for another computer that isn't distributed to the levels but are more advanced to other hosts Briscoe, N. (2000).

The application layer is a layer that will specify the shared protocols and interface strategies used by hosts in a communication network. This application level also…...

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