# Switching Concepts & VLANs

> Master Ethernet switching, MAC address tables, VLAN segmentation, 802.1Q trunking, and inter-VLAN routing with hands-on configuration labs.

Canonical: https://codelivly.com/rooms/switching-concepts-vlans
Last updated: 2026-08-25

| | |
|---|---|
| Level | Beginner |
| Category | Networking |
| Lessons | 6 |
| Estimated time | 45 min |
| XP | 200 |

Dive into the core mechanics of Layer 2 networking. This module demystifies how switches operate, dynamically build MAC address tables, and forward frames efficiently. You will learn why Virtual LANs (VLANs) are critical for segmenting broadcast domains, improving network security, and optimizing traffic flow. The curriculum covers 802.1Q trunking protocols, inter-VLAN routing concepts, and culminates in a guided, hands-on lab where you will configure VLANs and trunks on a virtual switch. Perfect for beginners building practical skills for CCNA or CompTIA Network+ certifications.

## Lessons

1. What Is Switching (30 min)
2. MAC Address Tables & Frame Forwarding (30 min)
3. VLANs (30 min)
4. Trunking with 802.1Q (30 min)
5. Inter-VLAN Routing (30 min)
6. Guided Lab: Configuring VLANs and Trunks on a Switch (30 min)

## Related

- [Learning path: Routing & Switching Fundamentals](https://codelivly.com/learning-paths/routing-switching-fundamentals)
- [All rooms](https://codelivly.com/rooms)