Network Interface Layer and Ethernet Operation for Cisco CCNA 200-125/100-105

Since Ethernet is a widely used protocol in data networking, you'll spend most of the course examining Ethernet. You'll also examine physical components required for networking, as well as the layer 2 protocols used in network communication.
Course info
Rating
(36)
Level
Intermediate
Updated
Aug 10, 2016
Duration
3h 6m
Table of contents
Description
Course info
Rating
(36)
Level
Intermediate
Updated
Aug 10, 2016
Duration
3h 6m
Description

Get a better understanding on how Ethernet operates and how to configure a Cisco switch. In this course, Network Interface Layer and Ethernet Operation for Cisco CCNA 200-125/100-105, you'll learn some network interface layer protocols but focus your attention on Ethernet and Ethernet switching. First, you'll learn the details of the types of cabling, fiber optics, and wireless technology used in data link layer protocols to move information. Then, you'll examine a variety of data link layer protocols and where they are used. You'll also look at the long history of Ethernet, and then examine the Ethernet frame header, the Ethernet Switch, and how a layer 2 broadcast message propagates through the network. Lastly, you'll see a detailed demonstration of a switch configuration as well as an examination of the behavior of hubs and switches in the same network, and what the MAC address table looks like on a series of switches connected together. By the end of this course, you'll have an in-depth understanding of Ethernet and how to configure a Cisco switch.

About the author
About the author

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

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi everyone, my name is Ross Bagurdes and welcome to my course Network Interface Layer and Ethernet Operation. I'm a network engineer with 20 years' experience managing Enterprise networks and teaching people about them. In this course, we will discuss some network interface layer protocols, but focus our attention on Ethernet and Ethernet switching. Some of the major topics that we'll cover include examining the twisted pair category 5 and category 6 standards, as well as single mode and multi-mode fiber optics. We will learn what a collision domain is and how it relates to Ethernet. We're going to dissect the contents of an Ethernet frame header and examine how we check that frame for integrity. We're also going to look at the operation of an Ethernet switch, and then configure a Cisco 2960 Ethernet switch from scratch. By the end of the course, you will have an in-depth understanding of Ethernet and how to configure a Cisco switch. Before beginning this course, you should have completed the previous three courses in the CCNA training series, and by the end of this course you'll have all the information you need to move onto the rest of the training courses for the CCNA CCENT certifications. I'll hope you join me on this journey to learn about Ethernet with the Network Interface Layer and Ethernet Operation course at Pluralsight.

Introduction to Ethernet
Welcome to Pluralsight. I'm Ross Bagurdes. This is Introduction to Ethernet. Ethernet is by far one of my favorite topics to talk about in data networking. It is prolific in Enterprise networking, and the more you know about its operation, the better you'll be able to support and troubleshoot and implement Ethernet networks. To get through this topic, we need some goals. What I want to do is talk about a brief history of Ethernet. I think the history here is very important, because we're going to find out that Ethernet is actually one of the oldest technologies that we still use today in networking, and we don't see it going away anytime soon. It certainly has morphed into all kinds of different unique things, but its roots from the early 70s and certainly from the early 80s continue on today as a standard part of the protocol. So I want to look at that history. Second, we're going to look at what CSMA/CD means. CSMA/CD was the foundation of how Ethernet operated in 1982. It still uses that same exact principle today. However, the equipment we have kind of invalidates that whole process, and we'll talk about that. We're going to talk about the different speeds and duplexes of Ethernet and how that affects your network. And then last, we're going to wrap up talking about the Ethernet frame and all the fields that are part of that Ethernet frame.

Ethernet Switching
Welcome to Pluralsight, I'm Ross Bagurdes. This module is Ethernet Switching, and we're going to continue on with our conversation from Introduction to Ethernet, where we looked at the basics of Ethernet and looked at what a frame is, now we're going to take a look at the heart of Ethernet, which is the Ethernet switch. Let's take a look at what we're going to cover in this module. We're going to look at some network topologies first. Cisco likes us to have an idea of some of the network topologies that have been used throughout history, so that we can move in and start talking about the star topology that is used in most modern networks. We're going to talk about what a collision domain is, and specifically we're going to talk about collision domains as they relate to this device called a hub. We're then going to introduce the layer 2 switch and see what features the layer 2 switch adds onto a network. The MAC address table of a layer 2 switch is really the heart and soul of that device, and it's what makes it operate the way it does. We'll take a look at that MAC address table and see how MAC addresses age out of a table. We'll take a look at how that MAC address table can be used to flood frames to devices on a network, and we'll also look at something very important in layer 2 networking with Ethernet, and that is a layer 2 broadcast message.

Switch Configuration
Welcome to Pluralsight, I'm Ross Bagurdes. This module is Switch Configuration. Our goals this module are to take a look at the switch memory and the files in each memory, just like we did for the router in the last course. I'm going to demonstrate configuring a switch using all those tips and tricks and shortcuts that I used when we did the demonstration of the router configuration. We're going to configure SSH on the switch and then build an SSH connection to it. I want to reset a password that we don't know on the switch, or at least recover configuration on a system where we don't know the password. And last, I want to do an upgrade to the switch's iOS, just like we did for that router.

Check Your Knowledge
Welcome to Pluralsight. I'm Ross Bagurdes. Let's wrap up this Network Interface Layer and Ethernet course with a Check Your Knowledge section so we can see if we can apply what we've learned throughout the course to some more complex networks. Our goals of this module are going to be to look at the collision and broadcast domains again, and see how they behave when we have a mixture of hubs and switches in an environment. We're also going to look at switches connected to switches, where we cascade switches by connecting them together to make one larger switch. And then we're going to do some demonstration where we actually take a look at the MAC address tables of some switches, as well as learn how to find the port a device is connected to by only knowing the IP address.