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This article mainly introduces the basic operations of Cisco devices, such as common commands, prompts, error messages, help functions, and other fundamental knowledge points. Our goal is clear: through this section, you will learn to:
Clearly understand the information displayed during switch and router startup
Understand the initial switch configuration information and complete the initial parameter configuration of a router
Proficiently distinguish each command mode and switch between different modes
Use the help function in different user interfaces and understand the meaning of error messages
View and understand basic information about network devices
In the networking field, routing and switching are inseparable, so let’s briefly introduce some switch knowledge here
First, let’s look at the switch startup process
When a switch starts, it first needs to load the IOS system software into memory, decompress it, and run it. Subsequently, it loads the startup-config file into memory to apply the previously saved configuration.
Observing Switch Indicators (LEDs)
On the left side of the switch panel, there are some indicator lights. Let’s look at a diagram:
