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CCNA – One Year Later

June 3rd, 2010 1 comment

In May of this year, I marked the one year anniversary of obtaining my CCNA certification by passing the composite exam. The following are my thoughts, opinions, and observations one year out.

Use it or loose it!

As far as knowledge is concerned, I am a firm believer that what you do not user you loose. This was evident when I began planning for an IP address scheme change and I struggled with the first few subnets. Don’t expect to know every little detail or command off the top of your head, but do make sure you have a firm grasp on the core knowledge.

Continued Education

Certifications can be the equivalent of a final exam in school. For most of us once the exam has been passed the books and other study materials are placed on a shelf to be all but forgotten. Resist this urge!

Regardless of your choice to continue onto another technical certification, the learning should not stop. Topics that I use fairly regularly in my daily life are easily recalled, however the vast majority of the subject matter may not be topics that are covered on a regular basis. Once again, pick up your books and study materials to refresh what you learned. Chances are that when it comes time to recall that information (In real life or on another certification) you wont have to bang your head to remember something.

Real World Certification

Some debate the purpose of a technical certifications, particularly one sponsored by a technology company that benefits from people being familiar with their products. My take on this is that a certification is anything that you make of it. My opinion is that the CCNA is a good entry-level certification. The majority of the material covered is generic enough that it can be easily applied to equipment from just about any other vendor. The have been a few times when I have referenced my Cisco study material when configuring equipment from other vendors.

My personal goal with any certification is not to come out with just a certificate or specific knowledge of vendor “X”‘s equipment. I want to become a more well-rounded person who can adapt and apply my knowledge to any situation. I have witnessed a few cases where people with high level Cisco certifications proclaim “If it’s not Cisco, I don’t know it”. I question where they went wrong in their studies to not only adopt that mentality but also lack the confidence in their own knowledge and skills to be able to work with equipment from any vendor.

Recommended reading

There is no shortage of great reading material on networking, some of which I have had the pleasure of reading. Personally, I would suggest picking up a book on anything that interests you. Are you curious about BGP? Pick up a book! Sure there will be topics in the book that may be beyond you current knowledge, but for me that’s the best way to learn.

One book I would highly recommend for anyone that has obtained their CCNA certification is “Network Warrior“. The book holds true to its claim covering anything that wasn’t on the CCNA exam. It will give you a good intro to some more advanced topics and even covers some things such as how to avoid becoming an I.T. jerk!

Here’s to continued study and knowledge!

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CCNA Certified (Finally)

May 6th, 2009 2 comments

This morning I finally took and passed the CCNA 640-802 exam. After probably over a year of off again and on again studying, it’s a relief to finally have something tangible to show for it!

Passing the exam may mark the end of my CCNA studies, but this is only the beginning of the studying process for me. I have already begun looking into the next certification I would like to work towards. CCNP is a given for me, but I have been looking into the CCNA Voice certification. The possibility of an upcoming IP telepony project at work combined with the high demand for IP telephony skills right now are two motivators.

At this point I am going to take a short break from studying and catch up on some reading I have been putting off (all networking related, of course).

ccna_large

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Lab On The Go

January 12th, 2009 No comments

It seems like not too long ago that I had to jump through hoops just to be able to get some lab time in at work, or when I was otherwise away from my rack. My original routine for remote labbing was to leave the equipment I needed powered on with my laptop connected via console cable to my access server. I then setup port forwarding to my laptop so that I could RDP into it while I was at work.

This setup was inefficient for several reasons. The most obvious was the fact that I had to leave all of that equipment powered on for a full eight hours just so I might be able to get less than an hour of lab time. Another problem I ran into was that the connections between the equipment could not be reconfigured when I was not physically present.

My recent purchase of a Western Digital Passport external hard drive sent me on a quest for more portable apps to install onto it for remote use. It was then that I discovered GNS3 could be installed onto a flash drive or external hard drive (just about any removable media for that matter). The process was simple, during the installation of GNS3, you just set the installation directory of a folder on your removable media. The installation only requires about 40MB, so a minimal amount of space is required. From there you just copy the IOS images you need onto the flash drive and you are good to go!

It should be noted that GNS3 does WinPcap if you would like to bind some of your labs to the physical network card on the laptop. If you do not require this feature, then there are no other dependencies.

Links:

GNS3

GNS3 on a USB Key

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Cisco Emulator

May 15th, 2008 No comments

Studying for any sort of Cisco certification can get expensive very quickly, particularly when you factor in the cost of piecing together your own lab. One problem I have personally run into, is how to squeeze some lab work in while I’m away from home (at work or otherwise traveling). Having my entire lab powered up for eight hours or more, just so I could possibly run a lab exercise for 45 minutes at work did not seem efficient to me.

Recently, I have been playing with Dynamips, which is an emulator that allows you to run real Cisco IOS images. Experience with Linux made me feel right at home with the configuration and operation of the virtual Cisco devices in Dynamips. However, getting the hang of the configuration and inter-workings, could be confusing for some (including myself at points).

While browsing the Dynagen web site this morning, I came across a program called GNS3. This is a GUI interface that simplifies the use of Dynamips. Since it is a GUI, it allows you to see the topology of the network you are creating, which I find helpful.

The emulator in general is very handy when experimenting with certain things without purchasing additional hardware. I know many CCIE’s find Dynamips useful, since they have access to all of the downloads from Cisco. In addition, Dynamips can be bonded to a physical interface, allowing you to connect it to a physical lab or an outside network.

Below are links to the software I have talked about. Keep in mind, all of this software is free.

  • Dynagen – Text-based front end for Dynamips router emulator
  • GNS3 – GUI front end of Dynamips
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CCNA Lab Books

May 12th, 2008 No comments

After finishing my first CCNA book, I felt there was something missing from my self-study experience. The book had a few exercises in each chapter, but the exercises tended to revolve around the virtual lab simulator included with the book. What bothered me the most was the the exercises were, just that, exercises.

I have nothing against exercises, it’s just that I wanted a more in-depth experience. While exercises focused only on the topic in the chapter, I was looking more for a book of labs that built on the topics covered in each previous lab.

After looking around, I came to the conclusion that the Cisco Networking Academy Lab Companion books were the best choice. There are two books based around the Cisco Networking Academy courses. The CCNA 1 and 2 Lab Companion starts with the very basics, including cabling (which is something that is valuable if you are unfamiliar with cabling topics). The CCNA 3 and 4 Lab companion goes into more depth, including advanced configuration of CIsco routers and switches.

If you are looking for some labs to go along with your CCNA study, take a look at these books.

CCNA 1 and 2 Lab Companion

CCNA 3 and 4 Lab Companion

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Where I stand…

April 17th, 2008 No comments

I started reading though my CCNA book about a month or two ago. Before I did not have a set schedule, but I have started to set the goal of one chapter a week for myself. While it is a conservative goal, I hope it will give me time to apply what I read in hands-on labs.

Currently, I am preparing to finish up the chapter on VLANs. That leaves about six to seven chapters left in this book. Once I am finished with that current book, I will move on to the Cisco press books I have for CCNA study.

Below are the books I currently have in my collection:

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