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Wireless Controller Redundancy with No Client Reauthentication Needed

Last fall, I blogged about No SSID Outage or Access Point Stateful Switchover introduced with the AireOS 7.3 release whereby if your wireless LAN Controller fails due to some hardware failure, thousands of Access Points fail over sub-second to the standby controller! This is possible due to continuous synchronization of CAPWAP states, Configuration Changes, Radio Channel and Power, Roaming Keys and Access Point licenses between the two Controllers. This means even if the administrator changes the configuration, channel plans or the clients roam and the primary controller fails; the Access Points will simply fail over in a stateful fashion to the secondary. In this blog, I will share details on the upcoming enhancements to High Availabilty with the 7.5 release.

In the upcoming AireOS 7.5 release, we take High Availability to the next level with two critical enhancements.

1. Today, after Access Points fail over from the primary to the standby controller, each client tries to re-authenticate and the standby controller then checks against its CCKM database whether the client has already authenticated. At the rate of several tens of authentications per second, it can take anywhere from zero to a few hundred seconds for the tens of thousands of clients that are connected to a controller to re-authenticate. The client stateful essentially eliminates this downtime with sub-second failover. Thus the total downtime that any user running a voice-call or Citrix session experiences is 2-3 seconds that the application requires to reconnect.

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More on Cisco’s Connected Mobile Experiences in Nice, France

Last month I wrote about the Connected Mobile Experiences deployment in Nice. One of the most interesting things I saw at the iCity launch in Nice was a real cool application that can leverage the power of Cisco’s Connected Mobile Experiences (CMX) solution to deliver very unique and exciting capabilities.

Imagine visiting a city and being able to leave your friends digital messages that only they can read when they get to a specific location. Or walking into a new area and getting localized information right then about a specific event. Or customizing signage in whatever language in native to the visitor. Imagine being able to create your own sticky note and making it public or private anytime anyplace electronically.

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All of these things are just some of the possibilities that are now made available using ‘digital graffiti’ from a small startup in the South of France called Geekgaps.

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Internet of Everything: A Pivot Point in Technology — and Thinking

“You can’t manage what you can’t measure.” So said Dave Evans, Cisco’s chief futurist, in his keynote address at Cisco Live 2013.  I couldn’t agree more! As we usher in a new era of hyperconnectivity, we will see our environment in unprecedented ways, and then manage it like never before.

The trick is getting the relevant data to the right people at the correct time.

Cisco calls this transformation the Internet of Everything (IoE). With its explosion in connectivity from 10 billion things today to 50 billion in 2020, IoE promises a profound transformation that will enhance nearly all aspects of our lives.

But only if we do it right. And that requires changing the ways in which we think.

For IoE to be a true game changer, it will take much more than infusing every road, refrigerator, tire, and supermarket shelf with data-generating sensors. IoE could, for example, have a deep impact on water management. Today, 30 percent of fresh water is lost to leaking pipes. But a sensor in a pipe can only tell you that it’s losing water (and you may already have known that). The key is managing the information, tying it into control systems, and creating far-reaching, highly efficient processes for rerouting water or mobilizing maintenance resources. Read More »

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The Next Big Innovation Cycle for Hoteliers

Remember the time when we were trying to figure out exactly what the Internet was? Web pages and dot coms didn’t make complete sense. Wow, how times have changed. Today, our world revolves around the Internet. Most of us connect every day. And now, we are doing more than just connecting.

Our team recently joined other industry experts at HITEC 2013, the world’s largest hospitality technology show. Hot topics discussed at the show included the next generation guest, including BYOC (bring your own content), social media, Wi-Fi services, data security, mobility and more. But one topic stood out among the others – the next big innovation cycle for hoteliers.

So what is the next big innovation cycle for hoteliers?

The one thing about innovation in hotels that stands out to me right now is that it’s almost a constant two-way dialogue between the hotel and guest. When we leverage the network beyond just connecting to the Internet, the possibilities are nearly endless.  This two-way dialogue creates an opportunity to better serve customer needs. And if we pay attention to guests’ dialogue and understand their daily physical and digital habits and desires, there is no more assuming what those needs are. By constantly gathering data to determine future needs, we can create a system that not only is a solution, but can help determine solutions for the future. Read More »

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[Cartoon Catalyst Blog Series] Why deploy Pervasive Wireless for K-12. Who’s doing it and how.

With so many schools looking to integrate various technologies for things like blended & distance learning, increased staff and student collaboration, and mobility options, many are asking “are we sure we have the necessary infrastructure?”. And if they answer yes, will it support the newest technologies, and will it work all the time, every time?

We all know technology-enabled classrooms are becoming necessary for students and teachers living in a network-connected, mobile world.  Luckily, schools can actually reduce operating costs at the same time they are enabling these technologies by providing a wireless network infrastructure. Read More »

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