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Interference Detection and Mitigation with Cisco CleanAir

The previous blog on CleanAir went in depth on how MSE uses CleanAir information to locate interferers and the impact zone for each interferer. This blog takes a step back and gives an overview of the CleanAir technology.

How Interference Affects Your WiFi

802.11 devices operate in the 2.4GHz and 5GHz unlicensed bands. These are unregulated and experimental bands. As such, there are way more non-802.11 devices, including but not limited to cordless phones, video cameras, microwave ovens, Bluetooth headsets, DECT phones and even X-Boxes. Now even more devices are coming out that emit in these bands. These devices interfere with your WiFi network since they don’t work cooperatively with 802.11 devices, causing reduced network capacity and coverage, poor quality of voice and video, and link failures.

When an 802.11 device is ready to transmit and it senses interference, it will hold off transmission until it is finished.  If it is in the middle of a transmission where it has sent a packet and never receives an acknowledgement, then it will try to send the packet again. Issues like these  impact the throughput and capacity of your Wireless Network. An interferer like a microwave oven, which emits interference on a 50% Duty Cycle, will reduce the throughput by 50 percent. In the case of an interferer like a video camera, which emits interference at 100% Duty Cycle, when seen at Access Point above CCA threshold will stop the Access Point from beaconing. Due to this clients will not attempt to associate. Read More »

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The Fourth Step to Enterprise Mobility: Create an App Checkpoint

This is the fourth post in a blog series featuring Vine-format videos focusing on the “Six Essential Steps for Unleashing the Power of Enterprise Mobility”. The first blog post discussing how to build a mobile structure can be found here. The second blog post highlighting the benefits going virtual can be found here. The third blog post focused on preparing enterprises for the division of devices can be found here.  

For today’s app-centric mobile workforce, it’s no longer enough to provide basic security features for devices. Gone are the days where security for mobility is “all or nothing” where virtual private networks (VPNs) gave you access to all corporate network resources, or you had very limited email and calendaring access.

Today, enterprises are managing public and private mobile applications that require a shift in security practices and a new application strategy. Here’s a short checklist to guide enterprises as they create app checkpoints to meet new security demands:

Step 4

To watch the video, see: http://youtu.be/dpQ5_n6FoX4

1. Look for a rapid, reliable, and secure vetting process for applications. 

IT security teams are usually directed toward securing the network and the devices connected to it, versus securing the applications that run on those devices. Many organizations lack the resources to evaluate an application’s ability to handle sensitive information throughout its lifecycle.

Companies rarely have the resources to monitor sites that could breed malware, nor do they have the ability to maintain heuristic algorithms to identify such sites prior to infection. And those that decide to secure mobile apps themselves might end up having to prioritize remediations, leaving them vulnerable. Read More »

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Register to Learn About Cisco’s Policy Enforcement Solution

In his blog last week, Daryl Coon announced how there’s going to be a webinar this Thursday talking about Cisco’s leading One Policy solution driver, the Identity Services Engine (ISE) and its newest enhancements—now available with its 1.2 release.

During this free event, you will learn about the new features that provide increased scalability, reliability, and ease-of-use for guest access and BYOD on-boarding. You will hear from customers who have already deployed the 1.2 release. And we will discuss how the enhancements provide significantly greater capabilities than solutions available from competing vendors.Whether you need to support BYOD work practices, or provide more secure access to your data center resources, the Cisco Identity Services Engine (ISE) can help. With this all-in-one enterprise policy control platform, you can reliably enforce compliance, enhance infrastructure security, and simplify service operations.

Read more at http://blogs.cisco.com/borderless/ciscos-policy-enforcement-solution-delivers/

Already sold? Join us for the free webinar, Thursday Sept 5 at 10am PST to learn more.

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Mobile Video Collaboration

In today’s world, we are always on the go and want to communicate and collaborate wherever and however we choose to live, work, and play.

We are seeing this mobility trend emerging with more of our customers, as they realize they need their employees to be able to effectively work across their different devices while on the road or in different office locations.  And just being able to connect isn’t enough.  There must be really good quality not only in audio, but also increasingly with video and application sharing.

The latest version of Cisco TelePresence Server (v3.1) has been developed with these customer needs in mind.  Organizations can now better enable their employees to collaborate face to face while on the move, with new video capabilities that improve the user experience from any endpoint:

  • Flexibility with ActiveControl:  Users can be more engaged with a higher level of user control of meeting layouts.
  • Video quality with Cisco ClearPath:  Over highly lossy public networks – even at packet loss rates of 20% – ClearPath delivers a clear video experience.  Watch this video to see the difference ClearPath makes in quality:

Under the same network packet loss conditions, the left screen is the video experience without ClearPath; the right screen is the clear experience with ClearPath.

Are you a mobile worker, or have a mobile workforce?  We’d like to hear from you.  What do you expect and need from video for great collaboration?

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Cisco’s Policy Enforcement Solution Delivers

Whether you need to support BYOD work practices, or provide more secure access to your data center resources, the Cisco Identity Services Engine (ISE) can help. With this all-in-one enterprise policy control platform, you can reliably enforce compliance, enhance infrastructure security, and simplify service operations.

Cisco’s leading One Policy Solution—the Identity Services Engine (ISE)—now delivers even greater capabilities.

Join us next Thursday September 5 to learn about the solution’s newest enhancements—now available with its 1.2 release. The Identity Services Engine provides a comprehensive solution to manage and maintain network access and policies—ensuring consistent enforcement across wired, wireless, and VPN networks. Register today! Read More »

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