The OSI model stands for the Open Systems Interconnection and refers to the way that a communication system is sub-divided into smaller units, or what are known as layers. There are seven layers in this model; all the layers communicate with each other, perform a duty and pass on the information to the next level; rather like a worker on a factory production line.
The system of dividing a process into layers was seen as the first step towards international standardization of the protocols used in the various layers and was given that name because it deals with connecting open systems.
The layers both send and receive data and will move information up and down, depending on whether they are sending or receiving. The model is based on seven layers, these are.
The system of dividing a process into layers was seen as the first step towards international standardization of the protocols used in the various layers and was given that name because it deals with connecting open systems.
The layers both send and receive data and will move information up and down, depending on whether they are sending or receiving. The model is based on seven layers, these are.
- The Application Layer.
- The Presentation Layer.
- The Session Layer
- The Transport Layer.
- The Network Layer.
- The Data Link Layer.
- The Physical Layer
This is the part of the process which transmits all that has been sent into physical data, which is then put on the network or media form.
