About Course
Welcome to the Ethernet Fundamentals course — the next step in mastering how networks actually work. Ethernet is the backbone of modern LANs, and understanding it deeply is essential for any network engineer. In this course, you’ll explore how Ethernet functions from both the physical and data link layers, how switches make forwarding decisions, and how VLANs keep enterprise networks organized and secure.
With clear explanations, visual examples, and hands-on labs, you’ll learn everything from cabling and collision domains to VLAN trunking and inter-VLAN routing. This course turns Ethernet from a simple “cable technology” into a foundation for real-world enterprise networking.
About
The Ethernet Fundamentals course helps you understand how local networks are built and how Ethernet makes communication possible inside an enterprise LAN. You’ll study Ethernet frames, MAC addresses, switching logic, and VLAN operations in detail.
Each section builds on the last, starting from the physical media and data link concepts, then progressing into switching, VLANs, VTP, and ARP. You’ll also learn how these technologies interact and how to verify them on Cisco devices using the CLI.
By the end, you’ll be able to design and troubleshoot Ethernet-based LANs confidently — a key step toward becoming a Cisco-certified network professional.
What you’ll learn
- Understand Ethernet at every layer: Learn about the physical and data link layers, frame structure, and Ethernet standards.
- Master LAN switching logic: See how switches forward traffic, avoid loops, and handle redundant links.
- Configure VLANs and trunks: Segment traffic, create VLAN trunks, and route between VLANs using Cisco routers and switches.
- Explore ARP and address mapping: Understand how devices find each other on the network and how ARP operates behind the scenes.
- Work with real hardware and simulations: Practice your skills using lab topologies in CML or EVE-NG.
Skills you’ll gain
Who is this for?
Ideal for CCNA students and entry-level network engineers who want a solid understanding of how Ethernet and VLANs work in real networks. Basic networking knowledge is recommended before starting this course.
What you’ll learn
- Understand Ethernet at every layer: Learn about the physical and data link layers, frame structure, and Ethernet standards.
- Master LAN switching logic: See how switches forward traffic, avoid loops, and handle redundant links.
- Configure VLANs and trunks: Segment traffic, create VLAN trunks, and route between VLANs using Cisco routers and switches.
- Explore ARP and address mapping: Understand how devices find each other on the network and how ARP operates behind the scenes.
- Work with real hardware and simulations: Practice your skills using lab topologies in CML or EVE-NG.
Skills you’ll gain
Who is this for?
Ideal for CCNA students and entry-level network engineers who want a solid understanding of how Ethernet and VLANs work in real networks. Basic networking knowledge is recommended before starting this course.
Learning Objectives
- Why do we need IP Subnetting?
- Converting IP addresses into Binary
- The Subnet Mask
- Finding the Subnet ID
Learning Objectives
- VLAN Concept
- VLAN Trunking
- Trunk Native VLAN
- ………..
Course Content
Networking Lab
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Power over Ethernet (PoE, PoE+, UPOE, UPOE+)
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VLAN Concept
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VLAN Trunking
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Trunk Native VLAN
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Forwarding Data Between VLANs
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Router on a stick (ROAS)
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InterVLAN routing using Layer 3 switch
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What is VTP?
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Configuring and Verifying VTP v2
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What is ARP?
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ARP Features
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ARP Security
Student Ratings & Reviews
