I have been building a visual breakdown of the OSI Model and what actually happens when data travels from your browser to a server. 🌐
Most explanations stop at “7 layers,” but I wanted to understand the real flow behind the scenes:
• How HTTP requests move through the stack
• Where ARP, MAC addresses, switches, and routers come into play
• How Ethernet frames are created and stripped
• How bits become electrical signals, radio waves, or light pulses
• What happens at every hop between client and server
While studying networking, I realized the OSI model becomes much easier once you connect theory with real packet flow.
This diagram helped me visualize:
→ Encapsulation & decapsulation
→ Application → Physical layer journey
→ Local subnet vs gateway communication
→ Ethernet, Wi-Fi, fiber optics, and routing concepts
If you're interested in exploring the full high-quality SVG version (the uploaded image might gets blurry when zoomed), here’s the complete diagram link: https://github.com/knkrn5/Programming-Concepts/blob/main/computer-networking/network-models/open-systems-interconnection/osi.svg
In upcoming posts, I’ll also break down each OSI layer in detail — what it does, how protocols work internally, and how data actually moves across networks. 🚀
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