Understanding Network Protocols by OSI Layers

Overview

This lab introduces learners to the fundamental network protocols organized by the OSI model layers. It covers how protocols like HTTP, FTP, SMTP, DNS, TCP, UDP, and others function and interact to enable seamless network communication. Participants will gain insights into the purpose of each protocol, their operations, and how they are implemented in practical networking scenarios. The lab also includes scripting in Python to document and display formatted protocol information.

Inside this Lab

• Learn the OSI model and its seven layers, exploring the role of each in network communication.
• Examine the functions of key protocols at each layer, including HTTP, FTP, SMTP, DNS, SSL/TLS, TCP, UDP, IPv4, and Ethernet.
• Understand differences between protocol types, such as connection-oriented (TCP) vs. connectionless (UDP), and wired (Ethernet) vs. wireless (Wi-Fi) communication.
• Create Python scripts to format and output protocol details for educational or troubleshooting purposes.
• Develop practical skills to analyze and apply protocols in backend engineering and network communication systems.

This lab is designed for backend engineers and networking enthusiasts looking to enhance their understanding of protocols and network architecture comprehensively.