THE NEW REALITY IN WI-FI: DEALING WITH THE DEVICE INVASION. Philip Scott Xirrus

Transcription

1 THE NEW REALITY IN WI-FI: DEALING WITH THE DEVICE INVASION Philip Scott Xirrus

2 Agenda Wireless at a Tipping Point Challenges Facing Wireless Deployments Today Wi-Fi Standards from the IEEE 2.4Ghz and 5Ghz Channels How to Analyze Your Wi-Fi Environment Designing to Scale Design Goals Best Practices Summary

3 The new reality Wireless First Wireless Only

4 The Wireless Tipping Point High Performance wireless networks are the new norm being driven by a device explosion, mobile applications, and access to the cloud 700,000 Android devices activated a day. Source: Google 2011 Explosion of smartphones and tablets 1,000,000 mobile apps has transformed software adoption. Source: Jefferies, 2011 Work force increasingly mobile and connected Rapid rise in rich media content and applications Mobile data traffic will increase 26X between 2010 and Source: Cisco VNI 2011 Emergence of cloud computing 1 billion Wi-Fi devices in 2010 to 3 billion in Source: Gartner

5 Explosive Set of Market Drivers 1B 850K / day Mobile data traffic 92% CAGR, 2010 to ,000 apps Pricing & Tariffs Device Count Content Ecosytems Mobile Data

6 The ipad has changed everything Source: KPCB

7 Without Proper Planning, Enterprises Deploying ipads Will Need 300% More Wi-Fi Tim Zimmerman, October 2011

8 Source: KPCB Android at critical mass

9 New Challenges? Heterogeneous end points BYOT and unmanaged devices Device volumes and density Multiple devices per user Unpredictability of demand COMPLEXITY & UNPREDICTABILITY Network planning variables End User expectations Shrinking technology life cycles

10 Evolution of Standards 2.4GHz is reaching end of the line for performance Future is in 5GHz and other frequencies ad >5Gbps 60GHz 5GHz a 54Mbps n-Draft 300Mbps n 600Mbps ac 1Gbps GHz b 11Mbps g 54Mbps n-Draft 150Mbps (non-bond) n 300Mbps (non-bond)

11 The Wireless services opportunity WLAN not designed for pervasive Wi-Fi Devices WLAN not designed for real time communications WLAN relies on g Guest network not designed for BYOD Enterprise does not have visibility into RF issues Lack of experienced wireless staff Lack of sophisticated wireless tools Lack of adequate WLAN governance Top Wireless Issues That May Derail Your Mobile Strategy. Paul DeBeasi, October 2011

12 The BYOD Invasion

13 Impact of Increasing Density What happens if you do nothing? As device density and traffic goes up, so will complaints Wireless networks that ran fine all of a sudden do not work As Density/Usage Increases Works? The Network Deteriorates Does Not Work

14 Gartner on ipad impact to enterprise By 2015, 80% of newly installed wireless networks will be obsolete because of a lack of proper planning. Top Wireless Issues That May Derail Your Mobile Strategy. Paul DeBeasi, October 2011

15 Wireless Performance Enhancements Performance is on par and exceeding wired 1,000 1Gbps+ 800???? Data Rates (Mbps) next year 450 today ad ac 300 today b g a n ac/ad

16 A look at Wi-Fi Basics Wi-Fi has been a misunderstood technology. It s helpful to review the basics to set the foundation to build a proper network for mobility.

17 How do you use Wi-Fi? How many people used wireless at least 4x this week? Who has Wi-Fi in their home? Who installed their own Access Point? Do you know what frequencies are available for Wi-Fi APs? Do you know what frequencies your home AP supports?

18 Wi-Fi Basics: Clients 2.4Ghz Only 5Ghz Capable

19 Available on line tools

20 Design for Performance Wireless networks must be designed for tablets & smartphones Spotty/hot spot coverage insufficient Signal must be solid in all areas 67dBm minimum Live Site Surveys Full coverage for both Wi-Fi bands 2.4GHz as the Lowest Common Denominator 5GHz for most tablets & BEST performance

21 High Design for Density Auditorium Conf/Class Room Stadium/ Arena Device Density Med Dormitory Lodging Hospital Office - Closed Office Open Joint Use Retail Library Light Industrial Open Public Area Low Warehouse Dense Enclosed Enclosed Open Environment Type

22 Design for Security 36% of cellphone owners have had one stolen/lost* Only minority of organizations have a strong security strategy Requirements for a mobile device security strategy: User authentication Data encryption Configure/update profiles Monitor policy compliance Remote lock and wipe Mobile Device Management (MDM) *Source: TechJournal South, February 8, 2011 *Source: Gartner, April 2011

23 Design for Growth Enterprise Wi-Fi replacement cycles are 4-5 years (Dell Oro) In that time, the next Wi-Fi standards will emerge ac 5GHz ad 60GHz af 700MHz (white spaces) No 2.4GHz! A flexible solution is essential to not keep replacing equipment Keys to support future growth 5+ years operation Modular, upgradeable hardware Software upgradeable functionality

24 Station Isolation Station Isolation Wireless is a shared medium Separate slower devices from faster devices Dedicate specific radios to VIPs (e.g. Keynote speaker)

25 How do you scale traditional approach As density and usage increases the wireless network will deteriorate Deploy more APs and therefore More cables More switch ports Re-tune the RF

26 Design for Performance Wireless networks must be designed for tablets/smartphones Spotty/hot spot coverage insufficient Signal must be solid in all areas 67dBm minimum Live site surveys Full coverage for both Wi-Fi bands 2.4GHz as LCD 5GHz for most tablets & BEST performance

27 Deployment Scenarios High Device Density Med Low Dense Enclosed Enclosed Environment Type Open

28 Organizations who Depend on Wireless Enterprise Higher Education K-12 Education Healthcare Manufacturing Events Hospitality Government Xirrus has solved the toughest problems for customers who depend on wireless access