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Auto Packet Capture, Where Have You Been All My Life?
Posted by Robert Ferruolo (Dr. RF) on Aug 8, 2017

You can tell how long someone has been troubleshooting networks by the length of their arms. Orangutans like me have been doing it a long, long time.  I started with a sewing machine sized Network General luggable that I carried around the world. Now I have to stand up very straight  to keep my knuckles from dragging on the ground.

Mojo’s Cognitive WiFi platform - Aware, saves network engineers from having to have shirts specially made because it includes Auto Packet Capture.

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Aerohive, Aruba, Cisco, Meraki, and Ruckus Let Users Suffer with Interference
Posted by Robert Ferruolo (Dr. RF) on May 11, 2017

How often do you say “Wow, this WiFi is great!”? WiFi is like a utility, you take it for granted until the lights don’t turn on or water doesn’t come out of the tap. Just like the electrical grid or the water infrastructure, WiFi takes planning to implement correctly and maintenance to keep running smoothly.

The great news is that WiFi keeps getting smarter and Mojo is leading the way with Cognitive WiFi™. An example of our dedication to excellent user experience is how the C-130 uses its third radio and Dynamic Channel Selection (DCS) to quickly, reliably, and automatically detect disruptive interference.

We recently performed a benchmark test to see how well access points avoided channels with high WiFi and non-WiFi interference on boot up and during operation. We evaluated how well the AP avoided interference and how user experience was impacted.

The Mojo C-130 was the only access point to avoid interference 100% of the time, on both boot up and when introduced on the operating channel. All other solutions failed to avoid a channel with a constant interference source that made the channel unusable, or failed to change channels when the channel utilization got so high that it severely impacted the user experience.

User experience was evaluated using the following quality score rating system:


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Benchmark: C-120 vs. Aerohive AP250 in the Classroom
Posted by Robert Ferruolo (Dr. RF) on Sep 14, 2016

WiFi is a Utility, and Needs Capacity Planning

When is the last time you said: “Wow, this WiFi is great!”? You don’t really notice it when it works. You are more likely to say: “This WiFi is crap” when it doesn’t meet your expectations. WiFi is no longer a convenience, it’s an essential utility like electricity. You would like it work every time and without hesitation, like turning on a light.

Like the power grid, one of the biggest challenges in designing a wireless network is capacity planning. The goal of capacity planning is to determine how many access points are needed to provide a good user experience. Deploying too many APs is a waste of money and can make performance worse, but deploying too few will cause user experience problems (the equivalent of brownouts) when an AP becomes oversubscribed.

HD Video Streams: How Many Can Your AP Support?
Posted by Robert Ferruolo (Dr. RF) on Aug 30, 2016

The classroom paradigm continues to shift as new technology is adopted. Long gone are the days of watching a movie in class by threading the film from one reel, through the projector, onto the other reel. Film was replaced by videotape, which was replaced by laser disks and then by DVDs. The new classroom instruction model includes HD video streamed wirelessly on demand from a local/regional distribution server (or from the web) to each student, who has their own computer or tablet.

The latest paradigm is much more personal and interactive, which greatly increases the number of clients (tablets, laptops, and smartphones), the client density, the different types of applications, and the requirements and bandwidth those applications. In order to be able to support this shift, many parts of the school’s IT infrastructure must be updated, especially the wireless LAN.