Introduction

       Hi! Welcome to the most basic tutorial for networker! Understanding about OSI model and Network Protocols is one of the most important tools to help you grasp how networking devices like router, switch, PC… work. Follow us for more details. Thank you:)


We will learned about this sub-topic:

• Network communication using osi mdel
• Network Protocols

OSI MODEL

    OSI model is a framework for data communication across network. It was developed by International Standard Organization (ISO) in 1970s. It is used for networking and to show how two different systems can communicate with each other without requiring changes to their underlying hardware and software models. OSI model has seven layers. Each layer performs its own defined function in data communication.