Michael Nancarrow's Blog

Aruba Central, and Groups

Mon Aug 26 2019 Michael Nancarrow 1 Uncategorized

At the moment, I am going down the route of implementing Aruba Central to replace the Cisco WLC in my environment. Why? Because the management component of the Aruba stack, to me, is much more transparent and the support around the product trumping others. But you didn't come here to listen to an idiot's personal beliefs, did you? Either way, in this series of posts I'll be documenting what (and perhaps even why) I do things in Aruba Central to perhaps help you understand the product, even post purchase and implementation.

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Understanding Co-Channel Interference

Sun Aug 25 2019 Michael Nancarrow 0 Linux

A wireless channel is a logical identifier us humans use to categorize frequencies - they denote a signal frequency for data to be transmitted over. These signals are not just limited to WiFi - technologies like Microwaves, Baby Monitors and Bluetooth occupy this space as well. Regardless of whether you're using 2.5 or 5Ghz channels, you will need to re-use channels at some point. This is where the *design* of a network really comes into play. Remember when we stated that channel 1, 6 and 11 did not overlap? That's important because in our design, we can rotate through these 3 channels to ensure we have enough coverage at locations, whilst also mitigating collisions. Because Channel 1, 6 and 11 are seperated on the frequency range, they do not impact one another and are all able to transmit at the same time.

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