5 Essential Books for Your Cisco Career

career success May 12, 2016

When I was around 20 years old, I used to go into bookstores and look for a book (something on a technical topic, a business biography, or on personal development) that I could afford. However, I recently went into a book store, and it occurred to me that I’m never going to be able to read all the books I’d like to read in my lifetime. So, now my book selection is less about getting a bargain and more about which books will have the biggest impact in my life.

In this blog post, I want to give you my recommendation for five books that have been significant to me and that I think will help you in your career as a Cisco networking professional. Interestingly, only one of the recommended books is a Cisco Press book. That’s because the specific Cisco Press books best suited to you greatly depend on your particular technology focus. So, the assumption is, you’ll have your own personalized collection of Cisco Press books in addition my five book recommendations....

Continue Reading...

The Fundamentals of IP, ICMP, UDP, & TCP

ccna r/s network plus May 03, 2016

In this video we’re covering the fundamental concepts surrounding the IP, ICMP, UDP, and TCP networking protocols. Having a solid understanding of these protocols is critical to just about everything else we do in networking. So, I thought it would make a great review for you.

Enjoy the video!

 

Kevin Wallace, CCIEx2 (R/S and Collaboration) #7945, CCSI 20061

 

If you enjoyed this article, you might also want to subscribe to my podcast:

iTunes: http://kwtrain.com/podcast

RSS: http://kwtrain.com/rss

Continue Reading...

Video Fundamentals

ccna collaboration Apr 26, 2016

You might have seen some of my recent Cisco Collaboration videos. Interestingly, the big difference between Cisco’s new Collaboration track than its prior Voice track is the addition of video technologies.

But before you dive into studying super cool things like Cisco’s Telepresence suite, you really need a solid foundation in video fundamentals. That’s what this video is all about.

 


 

Topics in this video include:

  • Sample Uses of Video
  • Frames Per Second (fps)
  • Refresh Rate
  • Interlaced Video
  • Progressive Video
  • Pixel
  • Aspect Ratio
  • Compression Standards (MPEG-1, MPEG-2, MPEG-4, H.264 (MPEG-4AVC)

Enjoy the video!

Kevin Wallace, CCIEx2 (R/S and Collaboration) #7945, CCSI 20061

If you enjoyed this article, you might also want to subscribe to my podcast:

iTunes: http://kwtrain.com/podcast

RSS: http://kwtrain.com/rss

Continue Reading...

Multicast Routing on Cisco Routers

ccie r/s Apr 19, 2016

In this new video, you’ll get a simplified, yet comprehensive, look at multicast routing on Cisco routers. This video is appropriate if you work with multicasting in the real world or if you’re studying for your CCNA, CCNP, or CCIE Routing and Switching.

Some of the topics include:

  • The Benefit of Multicasting
  • IPv4 Multicast Addressing
  • IPv6 Multicast Addressing
  • Exercises: Constructing Multicast MAC Addresses
  • IGMP (versions 1, 2, and 3)
  • Reverse Path Forwarding (RPF) Check
  • PIM Dense Mode
  • PIM Sparse Mode
  • Live Demos (PIM-DM, PIM-SM, & Auto RP)

Enjoy the video!

Kevin Wallace, CCIEx2 (R/S and Collaboration) #7945, CCSI 20061

If you enjoyed this article, you might also want to subscribe to my podcast:

iTunes: http://kwtrain.com/podcast

RSS: http://kwtrain.com/rss

Continue Reading...

T1 and E1 Circuits on Cisco Routers

In this new video, you’ll learn the theory behind T1 and E1 circuits and how to configure them on your Cisco routers. This is a key technology to master for Cisco CCNA Collaboration, CCNP Collaboration, or CCIE Collaboration candidates.

 Topics in the video include:

  • T1 and E1 Speeds
  • Time-Division Multiplexing (TDM)
  • Common Channel Signaling (CCS) vs. Channel Associated Signaling (CAS)
  • Framing (SF, ESF, Multiframe)
  • Line Coding (AMI, B8ZS, HDB3)
  • LIVE DEMO of T1 and E1 Configuration and Verification

Enjoy the video!

Kevin Wallace, CCIEx2 (R/S and Collaboration) #7945, CCSI 20061

If you enjoyed this article, you might also want to subscribe to my podcast:

iTunes: http://kwtrain.com/podcast

RSS: http://kwtrain.com/rss

Continue Reading...

6 Core Cisco Collaboration Systems You’ve Gotta Know

ccna collaboration Mar 30, 2016

For the past few months, I’ve been immersed in Cisco collaboration technologies, and I created a video for you to introduce you to the 6 core systems that make up a Cisco collaboration network. 

These are the systems you’ll need to know if you’re interested in pursuing your CCNA Collaboration or CCNP Collaboration certification.

Enjoy the video!

Continue Reading...

Your Route to Cisco Career Success – Part 7: A Certified Success

career success Mar 07, 2016

Having the appropriate Cisco initials after your name (e.g. CCNA, CCNP, or CCIE) is a shortcut way of letting someone know your relative skill level. Even if you’ve got the skills and are at the top of your game, you still might be passed over when you’re looking for a new job, because that new job explicitly requires a specific certification. For many Cisco professionals (including me), earning certifications is less about impressing others and more about pushing yourself, to see how good you really are and what you’re capable of. I always get a rush when attaining a new certification and start thinking about what’s next. Also, if you’re a consultant, having a nice collection of Cisco certifications is an instant way to establish credibility with potential clients. You could even use your hard-earned credentials in your marketing materials.

The Spectrum of Cisco Certifications

Hopefully, you’re convinced that earning certifications is a worthy...

Continue Reading...

Fundamentals of VRF-Lite

ccie r/s ccnp r/s Feb 24, 2016

Have you ever used some sort of virtualization software (e.g. vmware) to get multiple virtualized servers running on a single physical server? It’s a great way to save resources, by eliminating the need for extra physical servers. Well, similar to how we can virtualize multiple servers on a single physical server, we can virtualize multiple routers on a single physical router.

Each of these virtual routers can have their own independent IP routing table and are logically isolated from the other virtual routers residing in the same physical router. This can offer a solution to service providers wanting to keep their customers’ network traffic (including the IP routing tables of customers’ routers) isolated from one another. Or, in a large enterprise, perhaps you have a design requirement to segregate different applications (e.g. voice, video, and data).

One solution Cisco offers to make this router virtualization possible is called VRF-Lite. Some literature...

Continue Reading...

Your Route to Cisco Career Success – Part 6: Getting Your Hands Dirty

career success Feb 17, 2016

While documentation is indispensable in your mastery of Cisco technologies, at some point you have to “get your hands dirty.” In other words, you have to actually configure the routers, switches, and other devices about which you’re studying. For some people, this is a trivial task, because they work with Cisco gear in their day-to-day jobs. For others, who might be self-studying, getting their hands-on practice equipment could be a bit more challenging. In this blog post, we’ll consider a few options for getting you the hands-on experience that is vital to your career.

Using Equipment at Work

If you work with Cisco equipment on a routine basis as part of your employment, you are in a very fortunate situation. You have access to, potentially, very expensive equipment, which you didn’t have to buy.

There is an important distinction to be made here. Do you have access only to equipment currently in use, or do you have access to spare equipment, which you...

Continue Reading...

How to Calculate an EUI-64 Address

ccna r/s network plus Feb 09, 2016

An IPv6 address is 128 bits in length, and like an IPv4 address, it’s divided into prefix bits (representing the network segment) and host bits (uniquely identifying a host on that network segment). A common approach is to use 64 bits to represent the network segment and 64 bits to represent the host on that network segment.


While you could manually configure the host bits for a router interface, a more efficient approach might be to automatically calculate those host bits using a 64-bit Extended Unique Identifier, known as EUI-64. For example, let’s say you have a router interface on the IPv6 network of 2000:1::/64. You could (in interface configuration mode of your Cisco IOS router) enter the command:

ipv6 address 2000:1::/64 eui-64


This command tells the interface to use 2000:1:: as the network portion of the IPv6 address and to automatically calculate the 64-bit host portion of the IPv6 address.

EUI-64 uses an interface’s MAC address as the basis of...

Continue Reading...
Close

50% Complete

Two Step

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.