Advanced Python Programming

Communication protocol layers

Most data transmission processes that are done through communication channels are facilitated in the form of the Open Systems Interconnection (OSI) model protocol layers. The OSI model lays out the major layers and topics in an intersystem communication process.

The following diagram shows the general structure of an OSI model:

OSI model structure

As indicated in the preceding diagram, there are seven main layers of communication in a data transmission process, with varying degrees of computing level. We will not be going into the details of the purposes and specific functions of each layer, but it is still important ...