CWNE Role Models – People Who Have Achieved My Goal

Success leaves tracks. As I continue to study and hone my WiFi skills, I have found learning about CWNEs to be an interesting side study. What I did not realize is that there is a notoriety associated with your CWNE #.

I have a fascination with studying successful people. Learning how other trailblazers have gotten where they are inspires me to blaze my own trail to where I want to be. This list is based on online resources. If someone would like me to correct or omit their name/#, feel free to contact me. I am honored to be working towards something that so many great leaders in the WiFi community have proven is a worthy goal for themselves. I look forward to adding myself to the list when I have earned it.

Official CWNE Counts

NameNumber
Keerti Melkote#1
Kimberly Graves#2
Keith Parsons#3
David Coleman#4
Jimmy Donohue#5
Joel Barrett#6
David Westcott#7
Richard Navidad#8
Mohammad Sarwar#9
Rick Murphy#10
Ranjeet Rana#11
Ben Miller#12
Chris Hyde#13
Troy McMillan#14
Senthilraj Shanmugavadivel#15
Casey Collins#16
Reggie Pugh#17
Bader Azzouqa#18
Rick Dreger#19
Deborah Dahlin#20
GT Hill#21
Tim Lemmon#22
Metka Dragos#23
Luiz Santos#24
Kenneth Gholston#25
Vincent Chow#26
Ismail Jado#27
Zachary Crawford#28
Michael Armel#29
Goran Ost#30
Dan Spanner#31
Douglas Haider#32
Peter Mackenzie#33
Ryan Miles#34
Pablo Alvarez#35
George Anderson#36
Jeff Smith#37
Gene Sawyer#38
Henry Chou#39
Kashif Siddiqui#40
Abdullah Al-Ghubari#41
Jeremy Kennedy#42
Dilip Advani#43
Bryan Harkins#44
Jerome Henry#45
Brian B. Lang#46
Jonn Martell#47
Tom Miller#48
Wei Wu#49
Levi Souza#50
Jennifer Huber#51
Steve Smith#52
Alistair Meakin#53
Shawn Jackman#54
Seth Rosenthal#55
Roger Kuhn#56
Matt Swartz#57
Rob Rohde#58
Tim Wilhoit#59
Kevin Steuber#60
Edwin (EK) Ahn#61
Mark Buch#62
Derrick Dicoi#63
Chris O’Donnell#64
Jeff DiMaio#65
Falk Bachmann#66
Mark Phillips#67
Ronald Shaul#68
Vinay Saini#69
Kevin (Chen) Wang#70
Greg Taylor#71
Robert Schaefer#72
Bruce Heaven#73
Brian Cox#74
Darrell Schrock#75
Derrick Phua#76
Raymond Flores#77
Marcus Burton#78
Brian Kovatch#79
Tarcizo Azevedo#80
Mohammed Arshad#81
Ric Hall#82
Aunudrei Oliver#83
Andrew vonNagy#84
Christian J. Estes#85
Peter Paul Engelen#86
Mark Sanetrik#87
Paul Stanley#88
Jon Linton#89
Troy Martin#90
Chad Smith#91
Roman Podoynitsyn#92
Aaron Smith#93
Timothy Dennehy#94
Alan#95
Gregor Vucjnk#96
Hao Deng#97
Travis Schlafke#98
Chris W. Brown#99
David Cook#100
Samuel Clements#101
Terry Tam#102
Sean Rynearson#103
Tom Carpenter#104
Ken Lim#105
Tim Ritterbush#106
Thet Lwin#107
Ronald van Kleunen#108
Derrick Monahan#109
Paul Finlay#110
Arun Wadhawan#111
Chuck Lukaszewski#112
Neil Mac#113
Ty Bowser#114
Erik Lubinger#115
Lee Johnson#116
Jared Griffith#117
Leonardo Mezzanotti#118
Robert Bartz#119
Anthony Blasse#120
Carlos Alcantara#121
Theofilos Sakoulias#122
Ryan D’souza#123
Tim Rowley#124
Jason Fernyc#125
Marko Tisler#126
Jaromir Likavec#127
Scott D Swist#128
Alan Blake#129
Dick Andersson#130
Travis Bonfigli#131
Scott Stapleton#132
Ali Youssef#133
Kevin Zhu#134
Nigel Bowden#135
Kevin Franzen#136
Janet Rae#137
Nathan York#138
Erik Klaubert#139
Claudia Ibarra#140
Jeffrey Kuehn#141
Aaron Scott#142
Charlie Twietmeyer#143
Chris Radford#144
Zahari Georgiev#145
Viten Patel#146
Brett Hill#147
Martin Ericson#148
Ben Wocks#149
Mike Albano#150
Nicolò Venchierutti#151
Blake Krone#152
Rasika Nayanajith#153
Jasper Cheng#154
Darren Johnson#155
Chris Lyttle#156
Alan Klein#157
Seppi Dittli#158
Brian Long#159
Eddie Forero#160
Jake Snyder#161
Henry Owusu Karikari#162
Jeff Haydel#163
Chris Avants#164
Thomas Larsen#165
Adrian McCaskill#166
Tim Rousset#167
Jeff Chua#168
Ram Krishnan#169
Phil Sosaya#170
Jason Hintersteiner #171
Trent Hurt#172
Ty Parker#173
Marek Krauze#174
Ruwan Indika#175
Jonathan Hurtt#176
Steve Evans#177
Matti Sysmalainen#178
James Garringer#179
Francois Verges#180
Glenn Cate#181
Jeal Jimenez#182
Jim Vajda#183
Chris Dunbar#184
Trent Cutler#185
Moises Rodriguez#186
Ferney Munoz#187
Robert Krumm#188
Michael Combs#189
Brennan Martin#190
Neil McRae#191
AJ Nurcombe#192
Farzam Vafa#193
Zhang Shuang#194
Jaffar Nassiry#195
Pierre Martin#196
Matt Frederick#197
Nolan Herring#198
DeWayne Williams#199
Lee Badman#200
Andrew Shipton#201
Romany Faheem#202
Qing Xie#203
#204
Justin Peterson#205
Bin Han#206
Jeen Sern Chew#207
#208
Jesse DeWath#209
Rowell Dionicio#210
Will K.#211
Charles Lewis#212
Stefan Angerer#213
Zaib Kaleem#214
Ryan Adzima#215
Michael Ruetz#216
Daniel Koz#217
Matthew Norwood#218
Tom Van Driessche#219
Aren Gates#220
Andrew Wang#221
Nathaniel Moore#222
Warren Rautenbach#223
Ashish Bhatia#224
Gustavo Mastroianni#225
David Kershaw#226
Rex Chen#227
Shannon Cranko#228
Alexey Belousov#229
Robert Eubanks#230
Sean Sivak#231
Michael Lane#232
Joel Crane#233
Richard Steiner#234
Cedric Terrier#235
Adam Vasquez#236
Bryan NoeIn Progress

CWNA

CWNAI am currently reading the Certified Wireless Network Administrator book 4th Edition by the CWNP group and Sybex. It is the Official Study Guide for the CWNA-106 exam. Hopefully it will be more pertinent than the book I purchased for the CCNA Wireless Exam. I really liked the information in the Cisco Book but you really had to augment the information with hands on lab experience as well as memorizing the types of questions on the exam and focusing on online Cisco resources and forums to learn the balance of information. I think that was good on the whole because it pushed me back into the material so that I would continue learning. I am still working on the third chapter. Much of the first part of the book is review. What I like about the review is that it treats the information from another person or group of peoples perspective. The Cisco waves on a rope analogy is pretty crude. I am fortunate in that I have been studying waveforms and have had access to Oscilloscopes and service monitors since I was in grade school.

Some of the good information that I have gleaned from it so far are that the ISO standandards are named from the Greek work isos or iσoϛ. This basically means equal or same. The group itself is named the Internal Organization for Standardization. Makes more sense now. It would be IOS if they used the name or possibly IOFS. Honestly how many more versions of IOS do we need?

I have learned an interesting fact about where the term decibel comes from. Decibels are relative units of measurement. They were originally created by Bell Labs. The unit of measure describes the difference in power of 10 to 1. This unit is a bel. Each 10 to 1 difference in signal amplitude is 1 bel. They further broke the unit into 10 pieces referred to as decibels. 1 bel = 10 decibels. The decibel allows very large differences in signal to be expressed using small easy to use values.

Getting ESXi Running

Today I decided that my home lab needs to have an ESXi server. I have decided to call it SAMI in honor of the people of the Northern European Arctic. I have installed it on an old dell PC Optiplex 740. I made an ISO image CD and loaded it that way. I could not find a USB stick to Rufus a boot USB otherwise I would have preferred that method. The installation kept complaining about my hardware. I pushed on through. I did not want to leave a DHCP address on it so I went into the setup with keyboard and monitor on boot and assigned a static IP.

I navigated in my browser to the IP and downloaded the Vsphere client software. I had not installed it on my home machine yet.

General Info

I have downloaded Ubuntu 15.04 and am running through the install. I created a datastore on the ESXi server and then uploaded it through the Vsphere client. You have to tie the ISO in the data store to the CD/DVD drive on settings as well as check the connect check box and connect at startup.

One frustrating part of the installation is that you need to see the Continue button. I have tried tabbing around. On one screen it was not tabbing. I found alt+F7 keys allows you to move the installer windows around in the little console window.

Don’t forget to remove the datastore ISO image from the Virtual CD/DVD drive. I un-check connect and un-check connected at power on. Restart Ubuntu.

I had a lot of graphics problems initially. I have used the display settings before but could not get the apply checked.

I ended up using the following terminal command.

xrandr --output Virtual1 --mode 1024x768 --rate 60

I then need to setup SSH for remote access.

sudo apt install openssh-client

sudo apt install openssh-server

Time to script.

MommyLink

My First WiFi Project

It is hard to believe that there was a time in my life when I did not have WiFi connectivity. When I was in high school we were so lucky to have dial-up internet access. I could surf at 20-30 Kbps. It was during this time that my mother was diagnosed with Alzheimer’s Disease. It wasn’t until I was in college that she reached a point where she needed to have a degree of supervision while she was at home. In the way that a hammer sees ever problem as a nail, I ended up deciding that the best way to watch her would be to install a network camera at home. Network cameras were just hitting the market place. Panasonic made a KX-HCM10 camera. The resolution was not great but it still offered pan and tilt which was very good for the price point at the time.

I used SMC WiFi radios running 802.11b. I ran a 2″ PVC conduit from the house to a small tower along the fence in the field. I had a stainless steel box with 120 VAC and CAT 5 running back to the house.

DSCF0015

I installed a hop on a DC powered site on Racehorse Mountain. I had to install a voltage regulator as the 12 VDC site needed to be converted to 5VDC for the radios. I used a cross over cable between the radios as I did not want to power an additional device.

DSCF0065

Fortunately I was able to see both sites from the ice guide bridge on Squalicum Mountain. I installed a small switch as having connectivity on this site was advantageous.

Sqlink

At Lookout Mountain I was able to tie into a T-1 Adtran Netvanta Bridge. This provided me connectivity to downtown Bellingham.

DSCF0099

I read back through my notes on the design. I was able to achieve a variable throughput on the link between 30-85Kbps. While this might not seem much better than dial-up, the ability to have a connection on all the time was amazing. I setup the camera in the living room. Unfortunately the video did not pass very well at such low data rates. I could see my mother but it was not the real time video I was hoping for. It is still amazing to me that this link worked at all. I did not have it in for very long. Ice on the tower on Racehorse knocked the element off the feed horn. I had built an ice shield. I did not figure that the cheap antennas I had used would last very long.

I ended up repurposing some of the equipment. Before I ran 2″ conduit and direct burial CAT5e between all the church buildings, I used one of the bridges to provide access between the church offices. I also used some of the parabolic grid antennas for DFing interference coming from the Canadian operator at 2.5 GHz when I was working for Clearwire.

Point Coordination Function

I have spent some time looking into PCF. Here is a definition from online…

Point coordination function (PCF) is a Media Access Control (MAC) technique used in IEEE 802.11 based WLANs. It resides in a point coordinator also known as Access Point (AP), to coordinate the communication within the network. The AP waits for PIFS duration rather than DIFS duration to grasp the channel. 19-78 μs.

Apparently PCF has rarely been implemented by any vendors.