In my last blog on 5 GHz spectrum, I discussed the recent FCC ruling that permitted outdoor access points to use the U-NII 1 band (5150-5250 MHz).
But the story doesn’t stop there. As mentioned last time, there are significant technical challenges to using the 5 GHz band. It is not cleared spectrum. It contains incumbent uses that are important for national security and public safety. Therefore, it is imperative that Wi-Fi not create harmful interference to these incumbent systems. Cisco will not settle for less.
On the topic of interference, a particularly interesting component of the same FCC ruling that opened the U-NII1 band for outdoor AP’s is that it also re-opened the Terminal Doppler Weather Radar (TDWR) band (channels 120, 124, 128) with new test requirements for DFS protection. Hold on, let’s backtrack a bit before diving into what this means:
What is TDWR?
In brief, Terminal Doppler Weather Radar (TDWR) “is a Doppler weather radar system used primarily for the detection of hazardous wind shear conditions, precipitation, and winds aloft on and near major airports situated in climates with great exposure to thunderstorms in the United States.” TDWR uses the frequency band from 5600-5650 MHz which is why wireless network equipment needs to be proven to “do no harm” to TDWR. If you’re curious for more information on TDWR, then please click here and/or here.
A Brief History
Many of you reading this will recall that the FCC closed the use of the TDWR band several years ago as the result of numerous reports of wireless equipment creating interference with TDWR. Read More »
Tags: 802.11, 802.11ac, access point, AP, band, bandwidth, capacity, certification, channel, co-channel, device, DFS, DFS protection, doppler, emission, emissions, equipment, FCC, Firmware, GHz, gigabit, HD, high density, interference, Mhz, operation, procedure, radar, radio, requirement, ruling, spectrum, tdwr, test, weather, wi-fi, wifi, wireless
The fire alarm went off in my building again, but fortunately, it was only a drill. By now, we are all used to the periodic fire drills for emergency preparedness in our workplaces. But have you ever wondered if there is a similar exercise possible for a cyber attack? The same logic applies. Your team will be better prepared to handle a disaster if they are trained for it.
Seeing is believing: Today I am excited to share this video from our Cisco Korea team that showcases Cisco CyberRange.
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Tags: certification, cisco cybersecurity, cyber threat, cybersecurity, security
Earlier this week, Cisco’s Chief Futurist Dave Evans and I took questions from you, our partners and customers, about our views and predictions for the future of IT Education.
The discussion covered a broad variety of fascinating topics, ranging from the impact of wearable technologies in the classroom, to how we can overcome skills gaps in critical areas such as network security with new approaches to talent development.
Technology has had a dramatic impact on education over the past few years with tablets, digital chalkboards and new collaboration tools changing the way students learn and professionals advance their careers.
Below is a link to view the recording of the broadcast. If you have any questions that didn’t get answered, please leave them in the comments, and Dave or I will get back to you: http://newsroom.cisco.com/feature/1332106
Tags: certification, education, future, futurist, IoE, skills, wearable tech
Technology has had a dramatic impact on education over the past few years, with tablets, digital chalkboards and new collaboration technologies changing the way students learn and professionals advance their careers.
The Internet of Everything (IoE) is becoming a major accelerator for innovation across all industries. The idea of an increasingly digital world where mobility of applications and people are commonplace, where all types of things are connected and provide more intelligence and value is becoming the new reality.
A number of factors including IoE and other evolving technologies and trends will transform the way we look at skills and education in the future.
I’ll be joining Cisco Futurist Dave Evans for a live interactive conversation about the future of skills and education next Tuesday at 11:00 AM PT. Please join us and ask questions; let’s explore what the future will hold and how we can get there.
Join us on Tuesday, February 4 at 11:00 AM PT here: http://newsroom.cisco.com/feature/1332106
Tags: certification, education, future, futurist, IoE, skills
As Wi-Fi continues to be the primary mode of access, enterprise Unified Communication(UC) applications usage is increasing with smartphones, tablets and laptops.
Customers are asking, is there anything I can do to prioritize Jabber or Lync traffic over others or even identify how much of the traffic is really collaboration traffic vs. other types of media. The recently introduced Wireless Release 7.6 enhances the ability to classify Microsoft Lync 2013 and Jabber with Cisco WLAN Infrastructure.
In the first blog about Application Visibility and Control over Cisco WLAN, I captured what is AVC and the capabilities included in the release 7.4. In a subsequent blog, I had captured a success story about a customer who benefited from the reliability by deprioritizing scavenger level applications as well as captured highlights of the enhancements in release 7.5. This blog captures how the release 7.6 allows popular collaboration applications to be accurately classified and prioritized as well as provides a teaser to some of the innovations that can be expected in the future.
What exact capabilities AireOS 7.6 provide ?
The protocol pack 6.3 introduced in AireOS 7.6 allows you to identify and prioritize not just Jabber but also sub-classify Cisco Jabber Audio, Cisco Jabber IM and Cisco Jabber Video. Customers may want to prioritize the Cisco Jabber Audio as the highest priority while the others may be lower priority. Similarly you can classify not just Microsoft Lync but also Microsoft Lync Audio, rtcp and Microsoft Lync Video and thereby prioritize them separately. Read More »
Tags: aireOS, App, Apple, application, AVC, beta code, certification, classify, collaboration, communication, control, controller, dropbox, ESPN, infrastructure, innovation, jabber, lync, media, Microsoft, NBAR, NBAR2, Outlook, packet size, protocol, protocol pack, qq, release 7.6, rtcp, traffic, UC&C, unified communications, user, video, visibility, webgui, whatsapp, wi-fi, wifi, wireless, wlan, WLC