INTEL WIRELESS
Wired Stuff
WiFi Tablet Corner
My80211 White Papers (Coming Soon!)

Cisco Wireless Compatibility Matrix (Nov. 2011)

Podcasts / Videos

My80211 Videos

Cisco: 802 11 frames with Cisco VIP George Stefanick

Fluke Networks: Minimize Wi Fi Network Downtime

Aruba: Packets never lie: An in-depth overview of 802.11 frames

ATM15 Ten Talk “Wifi drivers and devices”

Houston Methodist Innovates with Wireless Technology

Bruce Frederick Antennas (1/2)

 

Bruce Frederick dB,dBi,dBd (2/2)

Cisco AP Group Nugget

Revolution WiFi Capacity Planner

Anchor / Office Extends Ports

 

Peek Inside Cisco's Gear

See inside Cisco's latest wireless gear!

2.4 GHz Channel Overlap

EXAMPLE 1  

EXAMPLE 2

EXAMPLE 3  

CWSP RELEASE DATE 2/08/2010
  • CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    by David D. Coleman, David A. Westcott, Bryan E. Harkins, Shawn M. Jackman

    Shawn Jackman (Jack) CWNE#54 is a personal friend and has been a mentor to me for many years.  I've had the pleasure and opportunity to work with Jack for 4 years. Jack is a great teacher who takes complex 802.11 standards and breaks them down so almost anyone can understand the concept at hand. I'm excited for you brother. Great job and job well done! Put another notch in the belt!

IEEE 802.11a/g/n Reference Sheet

 

LWAPP QoS Packet Tagging

 

 

Interference Types

BLUETOOTH
 

Microwave Oven
 

Cordless Phone

JAMMER!
 

Tuesday
May252010

Darby Weaver Weekly Report 05.25.2010 #4

Darby Weaver Weekly Report 05.25.2010 #4

Long week last week.

1. Traveled to Delaware to try to figure out of to spend a few million dollars or so - ok under 10 and more than 5 or so...

2. Managed to read quite a bit on the flight up and the flight down... covered a few chapters during the week and reviewed a couple of chapters. I don't think I'm ever going to master chapter 5, nor do I think I want to.

3. I'm running a little behind in my exercises.

4. I did 2 Change Control Procedures between Wednesday and Saturday Morning... and both had issues that results in sleepless nights... So in a 72-hour span I only managed about 8 hours... I manage to recover both change controls - one for the Enterprise VoIP Upgrade and the other for the Epic Upgrade (worked with a full team on this including the vendor - Epic). Anyway... my brain was about mush all day Saturday and Sunday... Monday was a blur and I think today is Tuesday - if it is, I'm almost ok again...

5. This week is passing really fast... really fast... I have to complete the budget proposals with my partner (had to get one of my accounts upgraded...) gotta draw the Visio for each option of each proposal, and gather Wiring/Cabling/Electrical quotes to support each option presented.

Nothing to do with Wireless - except for a couple of WiSMs.

6. Vacation next week so technically, the mayhem starts on the 28th. I have a mandate from the wife to get all my stuff racked and stacked or get rid of it... Anyway, I tried in February.

I've got to work on some CCIE Training Labs too eavh day for most of the 10 days. I'll be pretty busy that week.

Maybe some CWNA time too but mostly the house. Gotta steal my life back from all the electronics.

Darby Weaverdarbyweaver@yahoo.comhttp://www.darbyslogs.blogspot.com

Monday
May172010

Darby Weaver Weekly Report 05.16.2010 #3

Darby Weaver Weekly Report 05.16.2010 #3

Chapters 3/4/5/ Progress Check:

Catching up from last week was my goal this week.

I had to make last minute plans to go to Delaware (where I'm writing for tonight) and this meant taking care of a few things on the home front.

I've been active on the "Ask The Expert CCIE Wireless Forum" asking some questions I knew, others I'd like answered, and some that were in the middle since it seemed like no one else was going to ask.

For CWNA I'm chugging on a long. It was announced this week that I won first prize on the www.cwnp.com for the most posts during the contest period. So that means I won the TrainSignal DVD set and they arrived last week. I won the Ultimate CWNA Study Package and that meant a CWNA Voucher too.

So a free Voucher and a free retake - all I have to do is hurry and finish studying. Easier said than done. I've been working my tail off at work.

No one ever said being a lead network engineer was easy. It's actually a lot of work, meetings, paperwork, discussions, research, and everything else that goes into making everything just "work".

That's just like. It's the life we choose. So I had to make a flight.

So while on the trip I'm doing to some Wireless experiments too and having some observations:

1. I'm taking moments to gaze at some of the various wireless towers I see standing everywhere. Not a biggie but my reading pointed it out and so I'm taking more than a peek. I have an ex-girlfriend from high school who works on setting these puppies up and you know they have a video and I think it has some of Van Halen's "Might As Well Jump" in there too. Not my idea of a good time, but hey I'm sure it is exhilarating. Anyway the video stresses how exciting setting up those towers can be and all the training, professionalism, and safety measure those folks take to get the job done right. Really Kewl!!!

2. I finally decided to use a Wireless GPS System. Kinda neat. Of course I had to turn in the first one it was DOA, and then I had to figure out I'm really not that great with French so of course, I found myself on a crash course on configuring the proper language. After all that, it got me where I was going and here I am.

3. I've been playing with my Sniffer a bit for Wireless. I broke out my Laura Chappell Video Training Course on "Introduction to Wireless LANs" and who's the instructor? None other than Keith Parsons. Keith seems to be rather promiscuous and gets around. I put it on my must study list and look forward to it asap. Small world. Keith also did the Fluke course too and who knows what else. Quite a guy!

4. Before I left the house I upgraded a small mountain of Cisco switches to the latest IOs - I don't know maybe 20 of them and I setup the OS of my Cisco ACS Server - I just opted for Windows 2000 SP4 and it'll work. It's just ACS. I did opt for the version of Windows 2000 that supports clustering - hmm... it fits with my other labs and my load balancing labs to come later - a bit OT for CWNA.

So where am I?

I read chapter 3, 4, and 5 this weekend. I've found I needed to read a couple chapters again. I have to do my exercises and read some more.

My goal will be to be at least up to chapter 6 by the end of the week and this means:

1. Reading assignments.2. Master all RF Math Formulas - this is a valuable task by itself.3. All definitions for all chapters so far - I hand type and look these up one by one.4. Complete all questions - I write these out too. Excellent for memory.5. Complete all chapter quizzes - these are electronic.6. Complete my hand written notes.7. Go over the three sets of electronic flash cards at least twice before the end of the week.

I was traveling so I could not make the conference call the guys wanted to have today.

I'm finding it challenging to grasp everything as quickly as I like. I'm fortunate that I'm already proficient in many of the practical aspects of setting up, configuring, and troubleshooting wireless networks. Whew! Not to mention my experience with the infrastructure itself that is required to fully support most of the initiatives and features implemented by wireless technologies.

My CWNA learning experience is making a lot of things I took for granted make a lot more sense.

FYI - I love the math formula presented by Keith Parsons on the CWNA's CD for the Rules of 10's and 3's. I have to admit I needed to walk slowly through the examples to see the pattern and then it made more sense when I started looking at the logarithmic functions - reminds me of Nuke school back in the 80's when I was about 18...

After reading the book and seeing yet more formulas (which apparently are not tested on the CWNA) I figured I better slow down and do some exercises.

I also watched the RF Math video from Ed Lieberman on the TrainSignal DVD and found the chart and a couple of other explanations and it helped drive the patterns home.

I almost have it now. I few more practice exercises and it is cement.

The milliWatt and the dB took me some extra time too to work out. The TrainSignal Video helped me here also.

Ok. It's 1:30am and I gotta go in early tomorrow and figure out how I'm going to get on premise.

Darby Weaverdarbyweaver@yahoo.comhttp://www.darbyslogs.blogspot.com

Saturday
May082010

Darby Weaver Weekly Report 05.08.2010 #2

Darby Weaver Weekly Report 05.08.2010 #1

Chapters 1/2/3/4 Progress Check:

It's been a busy week for me. It really has. In addition to taking on the CWNA certification, I was also given a copy of the Cisco Press CCNA Wireless book to review and perform a write-up for, and I have to re-study my BSCI/Composite (Route/Switch) exams in order to complete my CCIP certification this year.

Not to mention work as usual which I worked an over-nighter before taking a personal day off for my 17th Wedding Anniversary, and I had to get some minor repairs, updates, and maintenance performed on my automobile too.

Finally, this week has landed me two contracts that are both in the proposal stages for which is how I sometimes pay for parts of my lab, my certification exams, and all those loads of books and software I own.

Ooops! My full immersion program for the CWNA of Bust Challenge has led me to the www.cwnp.com forum and I have around 350+ posts there this month alone.

And I've been researching and constructing my Wireless Labs - I have 3 models that I am working on:

1. Cisco's Fat AP and Bridge model.

2. Cisco's SWAN model with the WLSE.

3. Cisco LWAPP model with at least 12 AS-1200/1250-ABG-INT/EXT APs + 4 Cisco 1131AG APs.

No I'm not done yet. I had to order some stuff to complete my CWNA Wireless Dream Lab like APs, Cisco ACS Appliance, 4GB DRAM/(2) 160GB HD upgrades, and my VMPS server, and a few more Cisco ABG Cardbus Wireless NICs - so most of this is in transit.

In addition to all of this I bought myself a decent Wireless library to add to my existing collection - mostly everything Cisco Press has on Wireless - so do I now. No CCNP-Wireless yet, but I'm told it is coming soon.

I worked out a set of at least 3 interesting sets of labs that meet each one of the three Wireless Lab models I've proposed up above.

Some of these labs are very detailed and very thorough. Remember I'm studying my way to the CWNE and CCIE Wireless along the way - so I'm taking my time to not take any shortcuts along the way.

I'm in real rush and I want to be very much at the expert level when I complete the certification exams and pass. I'm patient like an elephant.

I got a little behind in my self-imposed assignments but tomorrow I'm supposed to be up to date at least to Chapter 4 to stay on track with the other "CWNA Busters!".

1. Chapters 1-4 Vocabulary assignments.

2. Chapters 1-4 Review Questions assignments.

3. Chapters 1-4 Objectives and Summary assignments.

4. Chapters 1-4 Notes.

5. Chapters 1-4 Conference Call.

6. Chapters 1-4 electronic quizzes (the review questions all over again) till 100%.

7. Flash Card Decks 1-3 at least 1 time each per week.

8. Complete a re-read of each of the 4 chapters.

9. I've watched the 802.11n video offered by www.cwnp.com

10. Quizzes per chapter.

11. Flash Card Deck at least 1 x each ~350+ open-ended questions.

Note: I've been doing the old CWAP's assignments too while I'm taking the CWNA class to help me bolster the knowledge required for the CWNA.

Note: I've been working on the job with Cisco Wireless and so it has been keeping me fully submersible even if I did rely heavily on the CCNA Wireless and Deploying and Troubleshooting Cisco WLCs.

I think that is it for this week's review.

FYI - Briefs from our conference calls have been posted on the http://www.cwnp.com forum.

Tuesday
Apr272010

Study Plan 4.25.2010 #1

Study plans and first update:

1. Prepare Lab Environment.

- 2 1230 Series APs or 1131 Series APs.- Switches- Sniffers- AirMagnet for Surveying- Variety of Antennas- Radius Server - Cisco Secure ACS- Cisco 4100 Wireless LAN Controller

2. Memorization (Practice Tests)

- CWTS- CWNA- CWSP- CCNA Wireless (my production environment)

Basically, I drill through each question, answer, and explanation the first time through it. It normally takes me about one hour per 50 questions or so. Then on the second and subsequent rounds, I seek to improve my scores up to about 100%. I may vary this or perform questions on a per topic basis. Normally I shoot for about 6-10 questions per minute range by the time I've actually mastered the question banks.

Wait...!!!

I then let it sit for about a week and I run through the entire banks of questions again - noting where my score and not taking credit at all for any guessing.

The trick here is ascertain how much of the material do I now understand and will likely retain long term.

I usually do this for a few weeks or so. Relentlessly.

3. Read.

Normally I will read about 1 - 4 chapters per day. In addition, I will research topics as I go and blog about my experiences - I probably post about 10-20+ posts per day on various forums, blogs, emails, etc. So if I had to guess, I'd say I probably write about 5-10 8x10 pages of material a day or so.

Yes, I do find myself re-reading.

Yes, I take the time to explore the glossary.

Yes, I lab up whatever I can.

Yes, I do try my luck on the questions if there are any.

Yes, I love hand written notes with a pencil and paper and will probably write at least a 3 ring binder full despite everything else.

4. Videos.

I live video learning. I've found a few sites that bring things home quite well. The CWNP has a nice 5+ hour video series on 802.11n that I'm currently engaged in watching.

I take notes usually - pencil and paper usually. I don't often read them, but I am a creature of habit and it I write it, I usually retain it forever like some kind of elephant or something.

I have access to other videos on Wireless from CBT Nuggets, TrainSignal, Laura Chappell, the Pine Mountain Group (formerly) and maybe a few others.

So I've probably got plenty - some of this is dated material.

Let's see, I'm going to share with you the most effective form of studying I've ever done and let's see how it pans out for the CWNA. I learned this approach back in my Biology class in high school with Mrs. Wiggins (Wiggie Wiggie Wiggie). Anyway she was one of my favorite teachers I ever had even if she did think I was "hypo" (hyper-active).

5. Practicals.

- I'm deploying a WLC Network with Guest Wireless and Guest Wired access for my job using the Cisco 4400 Series Controllers. I have 3 of them deployed and 2 more are currently in the works. These are managed through Cisco WCS software. Which I'm still learning.

- I use AirMagnet for Site Surveys. I intend to perform an informal wireless Survey at each of my sites and this is in-line with my current job expectations as a Network Engineer for my employer. I guess I can kill another bird with that stone and take some sample sniffs as I go for later re-use and review during the CWSP.

- The books are awesome! Jam-packed with facts from recognized industry professional. To top it off, they have a lot of practical simlets that even have packet captures with interesting frames highlighted for discussion.

- I'll probably take it a step further to cement things in my head a bit. This means if there is an example and I have the equipment or means to do so, then I'll lab it up a bit and sometime comparatively to ensure I know my options. I highly recommend this method if you have the capability and resources to do so.

~~~~

Note: I've deliberately not specified a time line yet, since I work 24/7/365 at my job and my schedule can be sporadic at time as a the lead network engineer for my state. I'm the upstream for the Florida team sometimes and I take my work very seriously all the time.

Ok - I wrote this a few days back.

I got my books last week. I kinda thumbed through the CWNA book for a look at what to expect in the coming weeks and maybe months. There are 18 chapters so I'm going to strive to perform about 1 chapter a week. If I can get more in maybe I will but 1 chapter will be plenty given the style I am using.

4/25/2010 - I read chapter 1, wrote out the objectives that mapped to chapter 1, read the summary, and then wrote the terms used in the chapter out by hand. This made a nice and tidy 10kb notepad document.

4/27/2010 - Tonight I spent 2 hours typing out the Sybex flash card deck for 120 questions. They were not just from the first chapter. Ouch!. I think took the Sybex chapter 1 test, it was 20 questions. I breezed through it in 3 minutes flat at 75%. It turns out it looks to the same as the questions at the end of the chapter. Kewl. I prefer e-quizzes.

I guess to be true to my plan I need to go and grab my laptop and bring these questions to 100% and maybe speed up the process to 10Q per minute or so.

Anyway, it looks like that is where I am so far 2 days into the game.

I'm going to be out of town performing some sensitive upgrades on some core devices (thus my in-person cameo appearance) this week and the schedule will preclude my study efforts. It's a rough schedule.

I'm hoping for a small conference call with Rick Todd, J.C. Bogard, and our host George Stefanick this weekend assuming it fits everyone's schedule. From what I gather we are each taking a slightly different approach and of course, we all have different backgrounds in the field. George is tackling the CWSP for example and so he's our guide and he's working hard for it at the same time.

I think we'll all learn a lot and have fun doing it.

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