Communication protocol layers
Communication protocols used in electronics systems and the telecommunication industry often follow the Open Systems Interconnection (OSI) model. The OSI model divides the communication protocols into seven layers. These layers are stacked on top of each other and have an abstracted interface through which the communication flows from one layer to the next.
OSI model layers overview
In real implementations, some communication protocols collapse some layers together when it doesn’t make sense to divide the segment of the protocol any lower than the chosen implementation. Also, a communication protocol is often a concatenation of many other protocols that collaborate to map to an OSI communication model. The OSI model layers are as follows:
- Layer 1: Physical layer
- Layer 2: Data Link layer
- Layer 3: Network layer
- Layer 4: Transport layer
- Layer 5: Session layer
- Layer 6: Presentation layer
- Layer 7: Application layer...