Cisco IOS CLI Explained: Run Your First Commands Today
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The Cisco IOS CLI feels intimidating — until someone walks you through it properly.
In this video, you'll go from zero to running your first commands on a real Cisco device.
No prior experience needed. Just a console cable, PuTTY, and this guide.
📌 In this video:
We start with the fundamentals of Cisco IOS — the operating system that runs on every
Cisco router and switch — and explain why the CLI is the go-to tool for any network
admin over graphical interfaces like CCP or CNA. You'll learn how to physically connect
to a Cisco switch using a console cable and configure PuTTY with the right COM port and
9600 baud speed settings. We also walk through what happens when a Cisco switch boots
for the first time — hardware check, IOS image loading, and initial configuration —
giving you the solid foundation you need for CCNA 200-301 success.
⏱️ Chapters:
0:00 — What Is Cisco IOS?
0:42 — CLI vs GUI: Which One to Use?
1:18 — How to Access the CLI (Console & Remote)
2:00 — Setting Up PuTTY Step by Step
2:46 — Finding Your COM Port in Windows
3:03 — Cisco Switch Boot Sequence Explained
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