640-911 (Chapter 3)

Picking up were we left on off on a series of blog posts that follow the CCNA Data Center Study Guide from Todd Lammle. Feel free to post questions below. In these post I am only going over the topics of each chapter of the book, plus any examples the book offers and to get an idea of what the Cisco exam would cover. In chapter two we discussed about internetworking and in chapter three we will learn about Ethernet technologies. Continue reading “640-911 (Chapter 3)”

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The “Ending” of Layer Two Redundancy

Although layer two redundancy should never end, this is the final chapter of understanding layer two redundancy in the network. Last week I talked about how and why STP (IEEE 802.1D) is important in the network and the problems and causes of not having it which can turn your network against you and everybody on it. Today’s post will talk about how a switch decides which one is in charge on the network and which ones aren’t Continue reading “The “Ending” of Layer Two Redundancy”

The Middle of Layer Two Redundancy

In the month of August I talked about the “beginnings” of layer two redundancy mainly looking at the basic foundations and fundamentals of having layer two redundancy. Let’s continue are discussion about redundancy in the layer two environment. Continue reading “The Middle of Layer Two Redundancy”

Basic Wireless LAN Security

Although having a wireless LAN sounds like a wonderful idea, there are things that need to be implemented like security. A wireless LAN can be uncontrollable has it is just radio waves and anybody can receive them. Having and using good security practices can help you be under control of your wireless LAN. Continue reading “Basic Wireless LAN Security”

Basic Wireless Concepts

Mobility is now a common thing in a business environment, you no longer are fixed to specific cubicle in the work place anymore. What is also amazing is it will continue to change and become easier for employees to get work done, with their phone, tablet, and laptop computer. But what makes this possible? What is the underlying component? The internet is becoming more available in more locations, coffee shops, airports, and your cell phone service provider, with 3G and 4G speeds. Along with the United States of America which is also moving forward with the National Broadband Plan. So today let’s explore the wireless concepts! Continue reading “Basic Wireless Concepts”