Welcome 👋

The current long term release of the IOS-XE 9800 WLC is feature packed, but tucked away in the release notes is a one liner that is sure to catch people out in the near future(or me the other day): From this release, the default console baud rate of the 802.11AX APs is changed from 9600 bps to 115200 bps. What does this mean? Well, digging a bit deeper, it only covers the Cat9k range of AP’s, so 9120, 9130,9136, 916x, etc...

Because marketing people like to make things confusing, we have Wifi 6, and now Wifi 6E. So what is the difference? Both are based on the 802.11ax standard, so no difference there. What 6E does is introduces support for the 6Ghz frequency, which means more channels, less CCI, and the ability to deploy wider channel widths. Like the 5ghz specturm though, different countries have allowed different parts of the spectrum to be available for 802....

This will be a short post, summarising my experience with the CWISA exam, which I passed recently. The Certified Wireless IoT Solutions Administrator, or CWISA is the assosciate level exam that starts you on the CWNP IoT certification track. It is also a requirement for CWNE certification. As it’s an assosciate level exam, the depth isn’t huge, but the topics covered are broad. I took the newly released CWISA-102 exam. This exam will stay current until September 2025, as it was only recently refreshed....

What is 802.11r roaming and why is is so important to users (and you)? Wireless roaming is an essential feature for any wireless network, especially for those that are deployed in large, multi-building environments such as universities, hospitals, and campus networks. A simplified explanation is that “802.11 roaming refers to the process by which a wireless client device seamlessly transitions between different access points (APs) or base stations within a wireless network while maintaining an uninterrupted connection....

Having had zigbee in the home for a couple of years, and getting more and more devices spread across the home, I figured it was time to understand a little more about the protocol, and also work toward my CWISA certification. Zigbee is a wireless networking protocol that is primarily used for low-power, low-data rate applications in the Internet of Things (IoT). Zigbee falls under the IEEE 802.11.15.4 specification, which covers a suite of high level communications protocls for creating personal area networks (PAN’s) via low power digitial radios....