Cisco SD Access: Scalable Group Tags

One of the Cisco Digital Networking Architecture corner stone concepts is Software Defined Access (or simply, SD Access). One of the key components is the use of Scalable Group Tags (SGTs) and these form a cornerstone of the SD Access story.
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Cisco SD Access: Micro Segmentation Explained

In our series of blogs exploring Cisco SD Access, we took a look at What is SDA Fabric as an overview. In this blog we'll dig deeper and take a look at the concept of Micro Segmentation. Micro Segmentation is all about providing a level of granular network control never seen before. Let's take a look.
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Cisco RX-SOP: How to Turn Down the Noise

Cisco RX-SOP is a feature that de-tunes the receive sensitivity of an Wi-Fi Access Points. Essentially what feature is doing is to tell the AP to ignore transmissions it hears below a certain threshold - it's not removing the traffic from the air, but allowing the AP to ignore it and be able to talk over the top of background noise.
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What is Cisco SDA Fabric?

  I’ve recently been on a study tour with Cisco to look at the latest and greatest innovations in networking.  As an upfront intro, I’ve been a networking engineer for over 20 years now, with over 15 years of that as a CCIE. In a nutshell, I’ve lived and breathed command line, as every network engineer worth their stripes has. Why change something that[…]
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Wi-Fi Troubleshooting: How to Fault Find a Wi-Fi Network

Wi-Fi Troubleshooting is a specialist networking discipline all of its own. Over the years we have dealt with a large amount of bugs in controller code, old drivers on devices, chipsets that can’t roam properly, interference, rogue APs causing interference, incorrectly configured equipment and so on – the list of possible reasons for faults is a long[…]
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How to Build better Hotel Wi-Fi

Have you ever stayed in a hotel and the Wi-Fi wasn't great? I'll bet the answer is an unqualified yes. I've traveled quite a lot for work, which has given me plenty of opportunity to sample the delights of hotel Wi-Fi. It can be a bit of an inconvenience when you're travelling and you can't access your email - when you need to work and have some urgent[…]
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Cisco's ISE 2.X Software Release Lifecycle

Cisco ISE (Identity Services Engine) is an Enterprise grade AAA product that has been around for seven years.
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Travels with Wi-Fi: In-Flight Wi-Fi

On my recent holidays, it was with some interest when I boarded an American Airways flight, that they’re offering on-board Wi-Fi.
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Wi-Fi Channel Power: Not all Channels are the Same

When designing a new wireless network, RF power levels are often overlooked or misunderstood. Depending on the type of deployment, power levels can have a great impact on client performance and reliability.
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Clinical Wi-Fi and the CT Scanner

CT Scanners are a pretty impressive looking bit of clinical technology. At what must be an anxious time for patients, it's nice to see how the hospitals are working hard to make a nicer environment for patients.
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