Category for general posts
My Notes from chapter 19 of the CWNA study guide 802.11ac-2013 amendment 802.11ac technology does not operate in the 2.4 GHz ISM band, only the 5 GHz U-NII bands. 5 GHz only 802.11ac expands channel widths even further than 802.11n, with channel widths of 80 MHz and 160 MHz. Due to the limited frequency space …
Continue reading CWNA Chapter 19 – Very High Throughput (VHT) and 802.11ac
My Notes from chapter 18 of the CWNA study guide 802.11n-2009 amendment Defines High Throughput (HT) Clause 20 radios that use multiple-input, multiple-output (MIMO) technology in unison with Orthogonal Frequency Division Multiplexing (OFDM) technology Benefits of using MIMO are increased throughput and even greater range 802.11n radios are backward compatible with legacy 802.11a/b/g radios A …
Well I have been very slack with this blog over the past month sorry for that its been a very busy period for myself. I have had quite abit on at work, the wireless analytics project that I have been working on has picked up quite abit of interest within other departments and cause heaps …
I'm thrilled to share that I've been chosen as a Cisco Champion for 2017! Cisco describes Champions as "passionate experts and global champions for change" with a "desire to share their perspectives with the community." There are some sweet benefits that come with this privilege of being chosen for this program. Some of these include: Access to …
My Notes from chapter 12 of the CWNA study guide Layer 2 retransmissions The mortal enemy of WLAN performance is layer 2 retransmissions that occur at the MAC sublayer If a collision occurs or any portion of a unicast frame is corrupted, the cyclic redundancy check (CRC) will fail and the receiving 802.11 radio will …
Continue reading CWNA Chapter 12 – WLAN Troubleshooting and Design
My Notes from chapter 11 of the CWNA study guide Deployment considerations for commonly supported WLAN applications and devices Data Data Email and web browsing are two of the most common applications One of the most important aspects of designing a network to handle data-oriented applications is to ensure that the network design is capable …
Continue reading CWNA Chapter 11 – WLAN Deployment and Vertical Markets
My Notes from chapter 8 of the CWNA study guide Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) vs. Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Set of rules to provide controlled and efficient access to the network medium. CSMA/CD is well known and is used by Ethernet networks CSMA/CA is not as well …
I have had the privilege of Beta Testing the new CMX High Availability version this post is to run through how it was setup and different options of how to set up the HA. I will after testing post detailing my findings around how well the HA handles different situations. For this testing I have …
After watching a webinar on the 7 Signal wireless sensors, I was offered the opportunity to for a loan sensor to conduct a POC to see if the solution would be beneficial for the company I am working for. Aside from evaluating the solution for the company, I took the opportunity to learn about a …
I have been looking at how to link CMX location data to other systems, and through the use of GPS Coordinates I can link the map in CMX to a CMX on Google Earth for instance. This post is to detail the steps to get GPS coordinates for device locations to appear within CMX. One …
It's not all about Wi-Fi anymore
Networking With A Side of Snark
One radio guy's journey into an IP world. These are my musings alone and don't represent my employer.
My Wifi Blog page
Experiences of a Connectivity Engineer
the world where wires fail to exist
My journey through the world of Wi-Fi...
A blog about wireless networking from Jim Vajda, CWNE #183
Welcome to the world of wireless networks !!!
Not Another Wireless Blog
Not Another Wireless Blog
Not Another Wireless Blog
Sam's WiFi space - CWNE #101 - CCIE #40629 (Wireless)
Not Another Wireless Blog
Not Another Wireless Blog
THE WLAN 