Layer

A layer is given the greatest importance in the context of the OSI model in IT. In terms of the OSI model, layers mean the differentiation of the various protocol levels. For example: The transfer of data by using a network cable is carried out by electrical impulses. The data transmission of web servers takes place via protocols such as http or https.These are on a significantly higher level. The OSI model consists of 7 layers which are using hierarchical communication with each other.