OSI 7-Layer Architecture Training

Duration: 8 hours

Alpinum’s OSI 7-Layer Architecture Training helps engineers understand how modern networked systems are structured across the application, transport, network, data link and physical layers. The course is designed for software engineers, systems engineers, embedded developers and networking teams who need to understand protocol behaviour in practical engineering environments.

This course is especially useful for engineers working with distributed systems, connected devices, automotive systems, embedded platforms or networked software services.

Who Should Attend?

This course is suitable for:

• • Software engineers working with networked applications

• • Embedded engineers using communication protocols

• • Systems engineers analysing data exchange and protocol behaviour

• • Graduate engineers needing a structured understanding of networking layers

What the Course Covers

Participants learn how the OSI model maps to real protocols and engineering workflows.

Key topics include:

• • HTTP, MQTT and DNS

• • JSON, TLS and compression

• • Sessions and authentication

• • TCP and UDP

• • IP and routing

• • Ethernet and MAC

• • Physical interfaces

Practical Labs

The course includes practical labs in Wireshark analysis, packet capture, TCP/UDP programming and protocol decoding. Participants learn how to inspect live or captured network traffic, map packets to OSI layers, capture traffic using command-line tools and parse protocol data.

Labs

• • Wireshark analysis
    Learning Objectives: Network traffic visualization, protocol hierarchy understanding, and anomaly detection.

Description: Utilize Wireshark to inspect live or captured network traffic to understand the structural composition of different OSI layer headers.

Tasks: Perform live interface filtering, isolate specific traffic streams, and map packets to their corresponding OSI layers.

• • Packet capture
    Learning Objectives: Data acquisition, storage formats, and traffic logging.

Description: Master the use of command-line tools like tcpdump to capture raw network traffic into standard formats (e.g., .pcap) for forensic or developmental analysis.

Tasks: Execute filtered captures based on host, port, or protocol and save outputs for offline investigation

• • TCP/UDP programming
    Learning Objectives: Socket API implementation, connection-oriented vs. connectionless communication, and data transmission.

Description: Develop functional client/server applications that transmit and receive data over TCP and UDP protocols to observe the differences in reliability and flow control.

Tasks: Write a simple TCP echo server to ensure data integrity and a UDP broadcast script to demonstrate datagram transmission.

• • Protocol decoder
    Learning Objectives: Binary data parsing, protocol implementation, and custom header analysis.

Description: Develop a custom parser to decode the fields of a specific network protocol from raw binary payload data.

Tasks: Read binary packet streams, parse header fields based on protocol specifications, and output human-readable summaries of the captured data.

Learning Outcomes

By the end of the course, participants will be able to understand the role of each OSI layer, analyse protocol traffic, distinguish between TCP and UDP behaviour, and use practical tools to diagnose network communication.

Assessment

• • Hands-on Exercises: Directed development blocks focused on track-specific implementation challenges.

• • Quizzes: Milestone-based knowledge checks to ensure students remain aligned with architectural best practices throughout the project lifecycle.

FAQs