7-Layer Network Protocols easily explained

Sebastian Streng
CodeX
Published in
3 min readDec 14, 2022

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Which one of us isn’t like that? We send and receive thousands of data every day without knowing what exactly is happening. Our electronic mobile devices make everyday life easier for us and at the same time determine our lives. In this article, I will give you an insight into the processes your devices control when connected to the network.

https://unsplash.com/photos/ahi73ZN5P0Y

Short Introduction to the OSI-Model

The Open Systems Interconnection (OSI) model is a conceptual framework that defines how networks communicate with each other and send data from a sender to a receiver.

To get more details about the 7-Layers OSI-Model, please read my article:
Send & Receive — The 7-Layer-OSI-Model

OSI-Model protocols

https://www.guru99.com/layers-of-osi-model.html#12

Layer 7

  • SMTP — Simple Mail Transfer Protocol;
    Basic protocol that is used to transmit e-mails over the Internet
  • HTTP — Hypertext Transfer Protocol;
    usual protocol standard used for communication between client and web server.
  • FTP — File Transfer Protocol;
    Network protocol for file transfer over an IP network. An FTP…

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