Cisco Blogs


Cisco Blog > Mobility

Deploying, Testing, and Tuning 802.11ac

By now you’ve probably heard quite a bit about the newest generation of Wi-Fi, 802.11ac.  I’ll save you the gory details, just know it’s about 3x faster than 802.11n and will help to improve the capacity of your network. Jameson Blandford and I were recently guests on the No Strings Attached Show podcast with Blake Krone and Samuel Clements (Click to listen to the podcast).

I wanted to follow up the podcast with a blog to go over considerations for deploying, testing, and tuning 802.11ac.

Considerations for deploying 802.11ac

Switching infrastructure

The first question you’ll want to ask yourself, is, if your switching infrastructure can handle 11ac?  The answer probably is, yes.  The things to consider are the port speed and power-over-Ethernet (PoE) capabilities.  You’ll want the access point to have a gigabit uplink to the switch.  Each 11ac access point could potentially dump several hundred megabits per second of traffic onto your wired network.  It’s also not a bad idea to have 10 Gig uplinks on your access switches to distribution or your core.  If you have even just a couple access points on a single access switch, you may quickly find yourself wishing you had 10 Gig uplinks.

Next you’ll need to consider how you will power the access points.  If you are like the majority of our customers, you will use PoE from your switches.  While 11ac access points require 802.3at (PoE+) for full functionality, the Aironet 3700 will run happily on standard 802.3af PoE.  In fact, it remains 3 spatial-streams on both radios, so performance does not suffer because you have a PoE infrastructure.

Will you deploy 80 MHz channels? Read More »

Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Metageek Chanalyzer Pro + Cisco CleanAir = Powerful RF Visualization

As I partake in Cisco Live! activities, I wonder how the network team handles the thousands of geeks with their 3-4 geek toys each connecting to Wi-Fi from anywhere around the convention center.  I know a thing or two about how they went about planning, but hey, there is always Murphy’s Law that creeps up and nothing (always) works as planned…surprise surprise… think about the size of this conference and the World of Solutions (trade show floor) where so many of the partners want to show off their latest and greatest capability by setting up their own network. BAM: you have interference of all kinds all over the place. It’s a good thing the AP’s that are deployed have Cisco CleanAir® Technology to automatically classify and mitigates the interference. But wouldn’t it be great to be able to visualize the interference and the RF?

Enter visualization and Metageek.

It doesn’t take long for someone in the wireless industry to know that Metageek’s geeks know a thing or two about giving sizzle to RF and packets. We’ve certainly been around long enough, so that’s why we’ve been working with Metageek to cook up the Chanalyzer Pro with Cisco CleanAir® , the industry’s most advanced spectrum intelligence technology with the industry’s most visually captivating and comprehensive RF analysis tool. Perhaps you caught yesterday’s press release?

metageek Read More »

Tags: , , , , , , , , , , , ,