Technology with Security

OSI Reference Model

07 February 2021

Image: cloudflare

The Open System Interconnection (OSI) Model is a reference model that standardizes the communication and provides interoperability of various communication systems with standard protocols.

Though the OSI is a conceptual model, the actual implementation of the OSI model is TCP/IP model. In this post, I want to share and compare different layers, their names, protocols, devices, and functionalities at a glance for a quick reference.

OSI Reference model and comparison

Please click on the image to open in a new window.

Hope this helps as a quick guide!