GUI vs CLI
In these tutorials we will work with Cisco equipment. All of this equipment has an Operating System (OS) called Cisco IOS ( I nternetwork O perating S ystem) . We can work with it in 2 CLI or GUI modes.

When it comes to Cisco equipment (Routers and Switches) they all have one thing in common: the Operating System, Cisco IOS. IOS comes from I nternetwork O perating S ystem and is the "engine" that provides the power of this equipment. We can work with IOS in 2 CLI or GUI modes . The acronym CLI is C ommand L holds I nterface and is command line where we set up all these devices. Thus we will have full access to the Router or Switch and we will be able to influence its behavior in the network.

The GUI stands for Graphical User Interface and is most often used when configuring small network devices such as Wireless Routers (Wi-Fi) at home. Find out more about all this in the video below!

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