Brent Leekley is the owner of multiple technical and business websites, worked as computer network expert, and ran his family's brick-and mortar furniture store in Colorado, USA.
As a Cisco Certified Internetwork Expert, market researcher running print, web, and broadcast campaigns, and business owner Brent has developed numerous low-to-no cost life/business hacks that save time, money and frustration.
Brent's courses focus on finding the quickest way to attain skills that make immediate impact on your projects and habits.
Brent lives with his family in Castle Rock, Colorado, USA.
Take your courses with you and learn anytime, anywhere.
Learn and practice real-world skills and achieve your goals.
I have friends who know nothing about computer networks who own stacks of off-the-shelf routers, hundreds of feet of cable, and every wireless card you could imagine. And yet, they've failed to figure out that their internet connection will never get any faster if they don't buy service faster than the 768k down DSL.
Not to be arrogant about what I know about networking, but a network is much more than the jack in the wall you plug the cable into. But for most people, the end-user, this is what the network is reduced to. For the rest of us we want to know what makes this stuff work. What are the Computer Networking Basics, What are the components, what are the technologies, protocols, and rules of building reliable and resilient networks?
This Computer Networking Tutorial is built off of three other successful courses and contains monthly updates and live sessions that explore the technologies of computer networks. You will be provided with lab topologies that you can build into Dynamips or GNS3 network emulation freeware. Each lecture will walk-thru advanced technology demonstrations illustrating the proper implementation of the technology.
This lecture describes the role of the network engineer. It describes the different responsibilities of the job role and expected compensation given level of experience and education. It also describes how to gain free hands on experience to gain skillsets needed to be a successful network engineer.
In this lecture we describe the Knowledge Matrix and how to use it to map out study planning.
In this lecture, we introduce you to GNS3 and Dynamips. We show you how you can use the free program to learn most, if not all, of the skills to become a competent network engineer.
This lecture quickly reviews the configuration and benefits of Cisco Discovery Protocol.
This lecture shows you how to quickly navigate the command line interface.
This lecture describes and demonstrates how to create VLANs on Cisco Catalyst Switches.
This lecture introduces VLAN technology.
This lecture introduces VTP and how to use it to better manage VLAN creation in your switched networks.
This lecture describes the dual VLAN configuration used when an interface has a Voice VLAN assigned.
Spanning Tree Protocol creates redundant forwarding paths through your switched networks. This lecture describes the protocol, and how it is used to create efficient layer 2 networks.
This lecture details the protocol enhancements provided by RSTP.
MST allows for the grouping of VLANs into single instances of RSTP. This provides less administrative overhead that is accompanied by RPVST+.
There are limitations with STP and this lecture show some proprietary solution to work around the inherent protocol nuances.
EtherChannel aggregates the bandwidth of redundant interfaces. This lecture describes there operation and demonstrates how to configure them.
UDLD provides loop protection in you network by identifying when an interconnect has become unidirectional.
Protected switchports provide a security mechanism for interfaces in the same VLAN and prevents the connected end-hosts from communicating with eachother.
This lecture describes how you can limit the number of MAC addresses learned on a particular interface.
In the event that an interface has gone to err-disabled state, a recovery mechanism is available to automatically recover the interface without administrative intervention.
This lecture describes storm control functionality and its configuration.
This lecture describes the security mechanism available in Cisco Catalyst switches that mitigates against rouge DHCP servers.
This lecture describes IP Source Guard and its configuration.
SPAN allows for the mirroring of switchports for the purpose of capturing network packets.
Frame Relay is a legacy WAN technology that is still widely used in corporate networks today.
IPv4 is the de facto transport protocol on the internet today. Even though next generation protocol IPv6 is available, IPv4 will be around for decades to come. Learn IPv4 addressing, subnetting and assignment in this lecture.
This lecture shows you how to emulate PC network functionality in GNS3 topologies.
This lecture demonstrates how to integrate Vyatta routing platforms into your GNS3 topologies.
This lecture demonstrates how to integrate Quagga routing processes into your GNS3 topologies.
Memory in Cisco IOS devices is meant for very specific roles in the operating system. This lecture reviews each type of memory and how it is used.
This lecture is a demonstration of GNS3 functionality.
This lecture introduces the concept of routing and how it is configured on routing platforms.
RIPv2 is a dynamic routing protocol that is used to dynamically exchange routes in small networks.
Here are a few tips on where to find your IOS config file and how quickly parse through it to find the information that you need quickly and efficiently.
What is IPv6? What do CCNA candidates need to know about IPv6? This short lecture discusses the need for IPv6 and some of the benefits of the new internet transport protocol.
This short lecture introduces you to the IPv6 address hexadecimal format and shortcut to make the addresses more readable.
Introduction to Unicast, Multicast, and Anycast address types in IPv6.
This is a Flash lab simulation. For best performance, use on a Flash capable device in full-screen mode.
I'm sorry, but this is more of a "watch me" as opposed to teaching. There was no logical flow to the material and the instructor just jumped around a lot. Maybe if he creates a road map and stay on topic throughout the course it will probably be better. Also, for a class titled "Learn Computer Networking", it should build up from the basics and become more complex later. I found that the first module, "What is the Network?" to be good, but the course took a turn after that.
Doesn't really talk about some of the core concepts of networking but goes into detail of a lot of topics before discussing the underling technology. Talks a lot about CLI commands but show them all segmented and separated without explaining well how to get to that same spot and how the network as a whole fits together.
For a free lecture, this course is awesome, thank you for providing it.