Introduction to VLANs for Cisco CCNA 200-125/100-105

In this course, we will examine VLANs, VLAN trunks, the layer 3 switch, as well as some common errors one can make while configuring switched networks.
Course info
Rating
(42)
Level
Intermediate
Updated
Sep 26, 2016
Duration
2h 21m
Table of contents
Description
Course info
Rating
(42)
Level
Intermediate
Updated
Sep 26, 2016
Duration
2h 21m
Description

VLANs are a great concept and are widely used throughout the networking industry. The idea of a VLAN is simply that an administrator has the ability to configure a switch such that there are multiple broadcast domains enabled, and inter-broadcast domain communication is not allowed. Effectively a VLAN is a broadcast domain. In this course, Introducing VLANs for Cisco CCNA 200-125/100-105, you will examine VLANs, VLAN trunks, the layer 3 switch. You will also setup a problematic network, and make errors during configuration. Finally, you'll examine both how the network will behave and how to repair broken networks. After completing this course, you'll be ready to segment a network with a single switch using VLANs.

About the author
About the author

For nearly 20 years, Ross has taught and managed data networks.

More from the author
Network Troubleshooting and Tools
Beginner
2h 54m
20 Apr 2018
Network Security Basics
Beginner
2h 16m
20 Apr 2018
Networking Concepts and Protocols
Beginner
5h 26m
20 Apr 2018
More courses by Ross Bagurdes
Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi, everyone. My name is Ross Bagurdes, and welcome to my course introducing VLANs. I'm a network engineer with 20 years experience in building and managing enterprise networks and teaching people about them. VLANs are used in nearly every medium and large sized business, and if you're providing networking to a datacenter, there's a very good chance you'll need VLANs to separate out different broadcast domains to allow for an efficient, secure and cost-effective network. Understanding VLAN and VLAN trunk operation is a critical component of becoming a network engineer, and understanding these concepts will lead one to success on the CCENT exam or the CCNA exam. Some of the major topics we'll include in this course are VLAN basics, VLAN trunking, inter-VLAN routing, and the layer 3 switch. By the end of this course, you'll know how to segment a network with a single switch using VLANs, as well as learn how to route traffic in between them. Before beginning this course, you should be familiar with ethernet and ethernet switching, understand ARP operation, and know the basics of IP routing. From here, you should feel comfortable diving into the rest of the CCNA training series. I hope you join me on this journey to learn VLANs and VLAN trunking with the introducing VLANs course at Pluralsight.

Trunking VLANs
Welcome to Pluralsight. I'm Ross Bagurdes. This module is Trunking VLANs. If you remember when we learned about switches, we learned that we could cascade switches so that we could have a broadcast domain that was quite large. And all we had to do was connect one of the ports on one switch to a port on another switch, and it would extend that broadcast domain. Well, what I'd like to do here is show you how we can do that same thing with VLANs and allow us to extend our broadcast domains across multiple switches when we have VLANs in play. So the first thing we're going to do is describe how the VLAN trunk link works, and then we're going to actually go configure it on a couple switches.

InterVLAN Routing
Welcome to Pluralsight. I'm Ross Bagurdes. This module is InterVLAN Routing. What we're going to do in this module is describe InterVLAN routing and the configure InterVLAN routing. InterVLAN routing sounds like it's something sophisticated and special, and the reality is, it's not as interesting as it might sound. Really all we're doing is configuring a router to go between two broadcast domains. So let's take a look at that.

Check Your Knowledge
Welcome to Pluralsight, I'm Ross Bagurdes. This is Check Your Knowledge for VLANs. In this module, what I'd like to do is talk about some troubleshooting when we're working with VLANs, VLAN trunks and inter-VLAN routing. So first, we're going to take a look at what happens when we have VLANs missing from our database, especially when we're using trunk links in our network. Second, we're going to look at these misconfigured trunk ports, which is a distinct issue from VLANs missing from the database. So we'll take a look at both of those. Additionally, we'll look at how we can add a VLAN to our network. So if we have additional clients that need to get connected to our network and we need them on a separate broadcast domain, we're going to look at how we can add that VLAN and how that increases the potential of doing something called cutting your arm off. Now that's not a bloody mess like you might think it is, but I'll show you how we can disconnect ourselves from our network by making a very, very simple error. And then last, we're going to take a look at the misconfigured access ports and see how that can affect our network.