The OSI model, which stands for Open Systems Interconnection model, is a conceptual framework used to standardize communication between different computer systems. It is a seven-layered model that divides the communication process into distinct layers, each of which is responsible for performing a specific set of functions.
The seven layers of the OSI model are:
Physical Layer – This layer deals with the physical transmission of data over a communication channel, such as the cables, connectors, and other hardware components.
Data Link Layer – This layer provides reliable and error-free data transfer between adjacent network nodes. It also handles error detection and correction.
Network Layer – This layer deals with logical addressing and routing of data between different networks.
Transport Layer – This layer provides end-to-end error-free delivery of data by establishing a reliable connection between two endpoints and handling flow control.
Session Layer – This layer manages the establishment, maintenance, and termination of sessions between applications running on different network nodes.
Presentation Layer – This layer is responsible for data representation, encryption, and compression.
Application Layer – This layer provides access to network services for applications running on different network nodes.
The OSI model serves as a reference model for understanding and implementing network communication protocols.
TecHosting 