Understanding VLANs and VLAN Trunking | Transforming a Traditional Network into a VLAN-Based Network
10When I first got into networking, one of the things that confused me early on was the concept of VLANs — especially VLAN trunking. So if you're a beginner, this video is for you!
I’m not just going to cover the basics of VLANs either. First, I’ll walk you through what a traditional, pre-VLAN setup might look like. That way, you’ll have something to compare it to and actually see what VLANs replace — whether it's an older setup or one that doesn't even use managed switches.
Since I’ll be using a router to help demonstrate the concept, I figured I might as well touch on Layer 3 switches too. I don’t think I could paint the full picture without mentioning them. But don’t worry — that part comes at the very end. If you’re only here for the VLAN content, you’ll get that first.
Either way, this is going to be a slightly longer video… so buckle up — we’re going for a ride!
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CHAPTERS
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0:00 - Intro
01:08 - Traditional Network Design
01:56 - Extending the Network
03:49 - Creating a New Network
08:49 - Transforming the Network to Use Vlans
23:52 - Configuring Vlan Trunking
42:08 - Optional: L3 Switching
57:35 - Final Words