2013 wireless lan survey

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M arch 2013 $ 99

Report ID: R6330313

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2013 Wireless LANSurveyIts a mobile world, and Wi-Fi is displacing wired

Ethernet: 89% use 802.11 as a client network

access method, up from 76% in 2010.Still, IT must meet high expectations for network speed,security and reliability. Perhaps thats why a

surprising 45% have plans to deploy 802.11acgear in production.

By Kurt Marko

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3 Authors Bio

4 Executive Summary

5 Research Synopsis

6 WLANs Under Pressure

8 Traffic Jam of Epic Proportions

11 802.11n Now the Baseline

13 802.11ac: Get Ready to Fly

16 Passport to Security

18 WIPS: Protect and Monitor

20 Business and Product Trends

22 Architectural Digest

23 The Vendor Landscape

24 Talk Is EAP25 4 Top Design Considerations

29 Conclusions and Recommendations

31 Appendix

35 Related Reports

Figures

6 Figure 1: WLAN Predictions

7 Figure 2: WLAN Worries

8 Figure 3: Percentage of Client Network

Traffic Traveling Over a Wireless Network

9 Figure 4: Mobile Devices as Percent of

Total Wireless Clients

10 Figure 5: Use of 802.11n

11 Figure 6: Maintenance Timeframe for

802.11a/b/g Networks

12 Figure 7: What Comes When

13 Figure 8: Vendor Outlooks on 11ac

14 Figure 9: Change in Wireless Traffic Overthe Past Year

15 Figure 10: 802.11ac Deployment Plans

16 Figure 11: Percentage of Dual-Band

Wireless Clients

17 Figure 12: Most Important Vendor

Evaluation Criteria

18 Figure 13: Most Important WLAN AP and

Controller Features

19 Figure 14: Methods Used to Enroll and

Provision Mobile Devices on WLAN20 Figure 15: WLAN Integration With Wired

Infrastructure

21 Figure 16: Most Impo

22 Figure 17: Controller-

Autonomous System

23 Figure 18: Wireless Ve

24 Figure 19: Plans for R

Over WLAN

25 Figure 20: Important

Support of Voice-Ove

26 Figure 21: Steps Take

Reliability

27 Figure 22: WLAN Man

Capabilities

28 Figure 23: Strategy foin WLAN Use

31 Figure 24: Job Title

32 Figure 25: Industry

33 Figure 26: Revenue

34 Figure 27: Company

CONTENTS

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2013 InformationWeek, Reproduction Prohibited

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2 0 1 3 W i r e lTable of Contents

Kurt Marko is an InformationWeekand Network Computing contributor and IT

industry veteran, pursuing his passion for communications after a varied career that

has spanned virtually the entire high-tech food chain, from chips to systems. Upon

graduating from Stanford University with a BS and MS in electrical engineering, Kurt

spent several years as a semiconductor device physicist, doing process design,

modeling and testing. He then joined AT&T Bell Laboratories as a memory chip

designer and CAD and simulation developer.

Moving to Hewlett-Packard, Kurt started in the laser printer R&D lab doing

electrophotography development, for which he earned a patent, but his love ofcomputers eventually led him to join HPs nascent technical IT group. He spent 15

years as an IT engineer and was a lead architect for several enterprise-wide

infrastructure projects at HP, including the Windows domain infrastructure, remote

access service, Exchange email infrastructure and managed Web services.

Kurt Marko

InformationWeek Reports

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RESEARCH

Survey Name InformationWeek 2013 Wireless LAN Survey

Survey Date December 2012

Region North America

Number of Respondents 419

Purpose To determine interest in the use of WLANs and concerns about expanding use

of wireless technologies in the enterprise.

Methodology InformationWeeksurveyed business technology decision-makers at

North American companies. The survey was conducted online, and respondents wererecruited via an email invitation containing an embedded link to the survey. The email

invitation was sent to qualified InformationWeeksubscribers.

reports

SYNO

PSIS

2 0 1 3 W i r e lTable of Contents

ABOUT US

InformationWeek Reports

analysts arm business technology

decision-makers with real-world

perspective based on qualitative

and quantitative research, busi-

ness and technology assessment

and planning tools, and adoption

best practices gleaned from

experience.

OUR STAFF

Lorna Garey, contentdirector; [email protected]

Heather Vallis, managing

editor, research;

[email protected]

Elizabeth Chodak, copy

chief; elizabeth.chodak@

ubm.com

Tara DeFilippo, associate art

director; [email protected]

Find all of our reports at

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Even with 802.11n advances and wireless

vendors skill at squeezing every bit of

throughput from available spectrum, many

wireless LANs are barely keeping up with reli-

ability, security and performance demands.

And the pressure is not about to let up.

Our district recently appropriated nearly

$1 million to upgrade the wireless infrastruc-

ture to support our 1,600 employees and

12,000 students, says the CIO of a K-12 dis-

trict. We have had over 13,000 unique regis-trations on our wireless system since Sep-

tember. That number see ms to grow by

about 100 devices per day. While he has no

plans to abandon the wired client network,

he also knows beyond a shadow of a doubt

that its not the future.

IT pros in the education sector may be on

the front lines, but enterprises had better pay

attention. Our recent InformationWeek4G and

the Future of Mobility Survey shows strong

adoption of smartphones and tablets, along

with plans by 80% to offload traffic from cel-

lular to Wi-Fi and small-cell networks. Yet our

InformationWeek2013 Wireless LAN Survey of

419 business technology professionals sug-

gests many arent facing the reality of a future

workforce that views mobility as a commod-

ity. When asked how, over

respondents see WLANs ev

shops as an end user acces

wireless and wired netwo

side in fairly constant prop

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2013 2011

Over the next five years, how do you predict that wireless LANs will evolve within your environmaccess method?

WLAN Predictions

In the very near term, were ripping out our wired access networks and going wireless wherever possible

I see wireless quickly replacing the wired access infrastructure over one to three years

I see wireless gradually replacing the wired access infrastructure over maybe four or five years

Wireless is a sizable complementary extension to our wired network, and I foresee them living side by side in fa

Wireless wont gain much traction with us and will be minimized or non-existent; wired access methods will co

Base: 419 respondents in December 2012 and 339 in September 2010

Data: InformationWeek Wireless LAN Survey of business technology professionals

3%

4%

13%

12%

21%

21%

5%

8%


WLANs Under Pressure

reports 2 0 1 3 W i r e lTable of Contents

Figure 1
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tually up from 55% in September 2010.

Guess what? Copper is out, radio waves and

inductive charging are in.

Replacing cables with ether for business

use means replicating the performance, reli-

ability and security of Cat6 Ethernet, an unre-

alistic goal until recently. Mature 802.11n

and the advent of second- and third-genera-

tion gear and security schemes have largely

made good on two out three, and the

802.11ac standard should essentially close

the performance gap for all but the most de-

manding scenarios.Then theres the cloud. Our InformationWeek

2013 State of Cloud Computing Survey of 446

business technology professionals at organi-

zations with 50 or more employees shows

80% using (40%), planning for (13%) or con-

sidering (27%) these services. Likewise, 78% of

4G and the Future of Mobility Survey respon-

dents say mobile access to cloud providers

will have an impact on enterprise IT services

over the next three years.

News flash: 100% of your employees use

cloud. We guarantee it. Maybe its Dropbox,

Google Docs or some SaaS application pur-

chased on the sly by a business unit. Its not

just employees, either. Kaustubh Phanse, chief

evangelist at AirTight, says his company sees

significant demand from t

tality sectors. Businesses a

Wi-Fi for in-store guest acc

to update traditionally

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FAST FACT

100%of your employeesuse cloud.



What reservations do you have about wireless LANs as the predominant alternative to traditiondesktop?

WLAN Worries

Note: Four responses allowed



2013 2011

Speedandperformance;itsnotfastenough

Reliability;Icantrelyonitalwaysworking

Datasecurity;Idonttrustit

Consistency;Idonthavethesameexperienceeverytime

Cost;itstooexpensive

Companyorgovernmentalpolicyforbidsitsuse

Maturity;Idratherseemorepeersadoptbefore

wedeploy

Upheaval;itsverydifferentfromw

ired,andwe

dontknow

h b t i t

59%

55%

51%

50%

43

%

49%

36%

41%

14%

12%

10%

11%

9%

9%

Figure 2


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Previous Next

processes, like point-of-sale or inventory man-

agement systems. Mobile commerce is on the

horizon, as we discuss in this report, and its

going to have an economic impact. Whether

the effect ispositive or negative for your or-

ganization depends on how well you prepare.

Unfortunately, the mobile revolution has

given us wireless endpoints that are substan-

tively less capable than laptops. As we discuss

in depth in this InformationWeekcolumn, the

Wi-Fi radios in many mobile clients operate at

lower power than laptops, although this is

largely mitigated by the chips used in newhardware like the latest Apple devices or

Google Nexus and Samsung Galaxy lines. They

also dont support multiple Wi-Fi channels.

Vendors tout the ability of MIMO (multiple in-

put, multiple output) radios to support multi-

ple spatial streams for a single connection. But

taking advantage requires multiple antennas

and more power-hungry, multistream Wi-Fi

chips, design requirements at odds with small,

thin form factors and long battery life. Most

smartphones and tablets are, therefore, 1SS

(single spatial stream) implementations (the

exceptions being dual-band devices that sup-

port a single stream on both the 2.4 and 5 GHz

frequency bands). With 1SS clients, everyone

is still trying to share the same airtime on a

given channel, which leads to a massive radio

frequency traffic jam.

This means rethinking conventional WLAN

design wisdom, as well discuss.

Traffic Jam of Epic Propo

Our WLAN survey shows

an impending logjam. Of

users who measure traffi

has escalated over the last

ing increases of 25% or mo

50% or greater growth.

sometimes dramatic uptic

Research: 2012 State ofMobile Security

With 62% already allowing

personal devices at work, ITsjuggling laptop policies and Wi-Fi

policies and BYOD policies

and that means security gaps bigenough to drive a semi through.

Most, 80%, require only pass-

words for mobile devices that

access enterprise data/networks,yet just 14% require hardware

encryption, no exceptions. Lets

be clear: Mobile security is data

security, and we must do better.

DownloadDownload



What percentage of your client network traffic is sent or received over wireless network access?

6%3%

3% 21%

22%

9%

36%

Percentage of Client Network Traffic Traveling Over a Wireless Netw

Base: 363 respondents at organizations using wireless LAN technologies

Data: InformationWeek 2013 Wireless LAN Survey of 419 business technology professionals, December 2012

Less than 10%More than 75%

We dont keep track

50% to 75%

Dont know

25% to 49% 10% to 24%

Figure 3
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-fic/240062623http://reports.informationweek.com/indexhttp://reports.informationweek.com/index


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tions are still in reactive mode. Their primary

coping mechanism: throwing hardware at the

problem.

The th ing is, just pi lin g on mor e access

points in high-use areas, as 68% of those ex-

periencing an increase in traffic do, will get

you only so far.

Fortunately, most respondents realize that a

new WLAN plan is needed. Half of those who

have seen an increase in traffic over the past

year are redesigning networks around higher-

capacity hardware, while 28% are moving ca-

pable clients out of the overcrowded 2.4 GHzghetto to the faster 5 GHz band.

Of course, wired networks are hardly in jeop-

ardy inside the data center or for wireless AP

backhaul. But as discussed, just 16% expect

wireless to replace wired at the edge immi-

nently (3%) or within three years (13%), a fig-

ure that didnt budge even a point in the 26

months between surveys.

Not surprisingly, those in the wireless indus-

try see things differently. Phanse of AirTight

says that, with 802.11n products now stable

and mature, many of its customers do finally

view Wi-Fi as a reliable alternative to wired. He

also sees dispersion of Wi-Fi from central cam-

puses to branch offices and retail stores, with

organizations rolling out wireless to hun-

dreds, even thousands, of remote sites.

Maybe so, but sheer numbers arent all we

need to worry about. Diversity in both num-

ber of clients and locales makes it much

harder to keep network po

rations consistent. Its a k

says, that cloud-based W

products such as AirTight

ligent APs in a controllerle

ting more popular.

Interestingly, 234 of our

WLAN management too

Previous Next



What percentage of wireless clients accessing your network are mobile devices (smartphones a

10%

21%

22%

23%

21%

3%

Mobile Devices as Percentage of Total Wireless Clients

Base: 234 respondents with wireless LAN management tools that identify specific device types, vendors, operating

Data: InformationWeek2013 Wireless LAN Survey of 419 business technology professionals, December 2012

10% to 24

Less than 10%

Dont know

More than 75%

50% to 75%

25% to 49%

Figure 4
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identify the specific device types, vendors, op-

erating systems and/or standards in use on

their networks. This is the first time we asked

about client distribution, and we saw an even

spread in terms of mobile devices as a per-

centage of wireless clients accessing the net-

work. This is one stat we look forward to track-

ing in future surveys. After all, market research

firm Strategy Analytics estimates that 700 mil-

lion smartphones were shipped worldwide

last year, about a 43% increase over 2011.

Thats d irectly translati ng to growth i n t he

WLAN equipment market: IDC estimates thatenterprise WLAN revenues were up 24% in the

third quarter of 2012, the sixth consecutive

quarter of annualizedgrowth of 20% or more.

Our InformationWeekOutlook 2013 Survey

of 728 business technology professionals, all

of whom are involved in IT budgeting or pur-

chasing, shows upgrading wireless networks

is high on project lists for 2013. We asked

about 19 initiatives; the top 10 are, in order:

improve information security, upgrade our

network infrastructure, upgrade our storage

infrastructure, improve our data, deploy mo-

bile device management for smartphones

and tablets, upgrade the wireless network, in-

troduce new IT-led products and services for

our customers, launch or upgrade employee

collaboration system, deploy virtual desktops

and create mobile app

Arguably, WLAN technol

least six of these priorities,

dors gearing up for 802.11

also sees mobility continu

Previous Next

2013 2011

Is your organization using 802.11 wireless LAN technologies as a network access method for en

Use of 802.11n

Yes; using it on a large scale and growing it

Yes; using it for very specific purposes

No, but were currently evaluating it

No; were interested but prohibited from using it

No; we think wireless is a bad idea we just dont trust it for one or more reasons

No; not interested because we think wired is the way to go



39%

29%

37%

7%

15%

2%

5%

2%

2%

0% 2%



Figure 5
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across both the enterprise and service pro-

vider segments. Mirroring results from our

survey, IDC finds Cisco the leading WLAN ven-dor, with 50% worldwide market share, fol-

lowed by Aruba, Hewlett-Packard and Ruckus,

with 23% combined. These figures demon-

strate just how fragmented, and hence ripe

for acquisitions and consolidation, the wire-

less market still is.

Fortunately, there seems to be enough pie

to go around. DellOro Group, which tracks

every segment of the network equipment

ecosystem, expects the WLAN market to in-crease nearly 50%, to $11 billion, by 2017.

DellOro attributes such sustained growth, an

almost 8.5% compound annual growth rate,

to deployment of service provider Wi-Fi, the

802.11ac upgrade c ycle, cloud-managed

WLANs, consumer video over Wi-Fi, the ex-

pansion of bring-your-own-device programs

and a shift in enterprise application develop-

ment toward mobile devices. Gartner esti-

mates the enterprise WLAN segment will

grow even faster, at an 18.4% CAGR, hitting al-

most $8 billion by 2016.

802.11n Now the Baseline

It represented one of the most torturous

network standardization slogs in recent

memory were talking a full seven years

from initial publication to final ratification.

But 802.11n is now an aging, and increas-

ingly inadequate, stand

thank 11n for a monume

in wireless performance v

of plenty of innovative te

new frequency band and

niques to the bandwid

Previous Next

2013 2011

Approximately how long do you estimate you will maintain your 802.11a/b/g networks?

Maintenance Timeframe for 802.11a/b/g Networks

They are being ripped out and replaced now

About a year

2 to 3 years

Longer than 3 years

Dont know

Base: 363 respondents in December 2012 and 242 in September 2010 at organizations using wireless LAN technol


9%

8%

9%

10%

28%26%

19%

16%



Figure 6

Like This Report?

Rate It!Something we could do

better? Let us know.

RateRate
http://www.cnbc.com/id/100434896http://www.cnbc.com/id/100434896http://www.cnbc.com/id/100434896http://www.cnbc.com/id/100434896http://www.cnbc.com/id/100434896http://www.gartner.com/id=2313317http://www.gartner.com/id=2313317http://www.gartner.com/id=2313317http://www.gartner.com/id=2313317http://www.gartner.com/id=2313317http://www.gartner.com/id=2313317http://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://v5.reports.informationweek.com/abstract/18/10117/Mobility-Wireless/2013-wireless-lan-survey.html?cid=rpt_like_linkS6330313http://www.cnbc.com/id/100434896http://www.gartner.com/id=2313317http://reports.informationweek.com/indexhttp://reports.informationweek.com/index


12/35

enhancing MIMO. All of these will benefit the follow-on

802.11ac standard.

Our survey finds that 802.11n is now the norm for virtu-ally all enterprise WLANs: 89% of respondents use 11n in

some form, 60% extensively. One sign that wireless has

finally conquered years of FUD about security, reliability

and performance: A mere 2% of our respondents are stick-

ing with wired networks because they dont trust wireless

or think its a bad idea. Wireless LANs are forbidden per

company policy, says a systems analyst for one of the

largest U.S. law firms. Users can connect wirelessly to our

ISP then connect to our network using VPN or Citrix. Were

sure thats a popular policy.On the back end, network equipment tends to take on a

life of its own, and APs are no exception. Maybe its that we

just dont know what to do with piles of outdated hard-

ware, but its often a bear to decommission obsolete gear.

To wit, nearly half of our respondents have no near-term

plans to retire legacy a/b/g equipment. In fact, the share of

those not planning to rip and replace older equipment is

actually up five points since our last survey.

At some point, you have to let go, and let us be clear: 11ac

is coming. As we discuss in this in-depth report, the Wi-Fi

Certified draft 11ac products likely to emerge in the next

few months will boost max data rates above 1 Gbps. By late

Previous Next

What Comes When

Enhancement 802.11n 802.11ac (draft)

Data rates 1x1:Up to 150 Mbps 1x1:Up to 433 Mbps

2x2:Up to 300 Mbps 2x2:Up to 866 Mbps

3x3:Up to 450 Mbps 3x3:Up to 1.3 Gbps

Modulation BPSK (binary phase-shift keying) BPSK & QPSK

& QPSK (quaternary phase-shift 16 & 64 QAM,with

keying) 256 QAM optional

Up to 4x rate

RF band 2.4 GHz & 5 GHz 5 GHz

Reduced congestionChannel width 20 MHz 20,40, & 80 MHz

40 MHz (optional) Up to 2x rate

Spatial streams 1 to 4 spatial streams 1 to 4 spatial streams

and antennas 3x3 APs common 3x3 APs common

Beamforming

Standard None None

MIMO SU-MIMO SU-MIMO

Data: InformationWeek Reports

FAST FACT

89%of respondents use 11n

in some form.



Figure 7
http://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/IT-Pro-Impact:-Is-Your-WLAN-Ready-For-802.11ac?.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/IT-Pro-Impact:-Is-Your-WLAN-Ready-For-802.11ac?.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/IT-Pro-Impact:-Is-Your-WLAN-Ready-For-802.11ac?.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/IT-Pro-Impact:-Is-Your-WLAN-Ready-For-802.11ac?.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/IT-Pro-Impact:-Is-Your-WLAN-Ready-For-802.11ac?.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


13/35


14/35

dardized mechanism for beamforming, a

means of dynamically changing the spatial

sensitivity of antenna arrays to improve signalreception and reduce background noise. This

will allow equipment from multiple vendors

to interoperate.

Organizations ready to start planning for

802.11ac should download our 802.11ac IT

Pro Impact report. Here are some top-level

recommendations:

>> Ensure that APs are positioned to accom-

modate higher frequencies, in which radio

waves are less apt to bend around corners ortraverse thick walls and are more prone to re-

flections. Matthew Gast, Aerohives director of

product management, says positioning your

11n APs to work well at 5 GHz is a start: Those

mount points may not be perfect for 11ac, but

theyll probably be good enough. Tightening

up on spacing will also improve airtime capac-

ity, and position APs high on walls and away

from corners unless youre specifically trying to

limit signal bleed into an adjacent office.

>> Consider using RF planning tools to op-

timize coverage. Plenty of products are avail-

able, with most, like these from MetaGeek,

running on laptops using a USB-connected

spectrum analyzer. It takes expertise to under-

stand and apply the results, so many organi-

zations will be better off contracting with an

independent consultant or their wireless ven-

dors of choice (most have professional serv-

ices organizations) to conduct a site survey.

>> Consider using pow

tors instead of Power over

using the data cable to de

flung APs certainly simpli

duces installation costs, th

APs will likely exceed PoE

capacity. Unless you alrea

haul links, you may be out

Previous Next

Over the last year, the percentage of wireless vs. wired client traffic at your organization has:

2%

1%1%

21%11%

64%

Change in Wireless Traffic Over the Past Year



Exploded

Decreased somewhat

We dont keep track

Stayed the same

Dont know

Increased somewhat



Figure 9
http://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.metageek.net/products/map-plan/http://www.metageek.net/products/map-plan/http://www.metageek.net/products/map-plan/http://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/abstract/18/9285/Mobility-Wireless/it-pro-impact-is-your-wlan-ready-for-802-11ac*.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.metageek.net/products/map-plan/http://reports.informationweek.com/indexhttp://reports.informationweek.com/index


15/35


16/35

proved. Its likely that, given the evolutionary

nature of 11ac and guarantees of backward

compatibility with 11n, changes between thedraft and final IEEE standard will be minimal.

Thus, vonNagy predicts that by years end per-

haps as much as half the new wireless access

equipment (APs, client interfaces) will be 11ac

and that by mid-2014, the majority of new APs

will be 11ac.

Now the question is, will IT pay attention?

Vendor optimism and standards body kum-

baya aside, our survey shows that few respon-

dents are chomping at the 11ac bit. More thanhalf, 55%, take a wait-and-see stance; 13% say

theyll hold off until users and management

demand it.

This caution is understandable when you

realize that most organizations still arent

even fully utilizing the capabilities of their 11n

gear. Of those respondents tracking wireless

endpoint capabilities, 25% say less than 10%

of their fleets are capable of accessing the

faster and far-less-crowded 5 GHz band vs.

17% reporting that half or more of their

clients are dual-band. Fortunately, this num-

ber is poised to skyrocket as virtually every

new smartphone and tablet, and all laptops,

now sport dual-band radios.

Passport to Security

Its a testament to authentication and

encryption protocols like 802.1X and WPA2

that security is in third place on our list of

eight WLAN worries, behin

reliability. The percentage

cern has dropped six poinits also at No. 3 among 16

Today, devices and users

Theres nothing in the W

helps the client, says vonN

identity component, such

Previous Next

What percentage of your wireless clients are dual band, capable of operating on 5 GHz channel

12%

5%

15%

19%

25%

12%

12%

Percentage of Dual-Band Wireless Clients

Base: 234 respondents with wireless LAN management tools that identify specific device types, vendors, operating


10% to 24

Less than 10%

Dont know

We dont keep track

25% to 49%

50% to 75%

More than 75%

FAST FACT

25%say less than 10% of their

fleets are capable of

accessing the faster and

far-less-crowded 5 GHz

band vs. 17% reporting

that half or more of their

clients are dual-band.



Figure 11


17/35

with a Radius or EAP server, helps. But client

security is the responsibility of mobile device

management, or MDM, and endpoint man-agement software, not the WLAN.

Although all modern mobile operating sys-

tems support WPA2 and 802.1X, smartphones

and tablets can throw a curve at some enter-prise network security practices. Jim Beren-

baum, a mobility and wire

tor at Gartner, says many

network proxies for trafficbound Internet access. Alth

Android can proxy Wi-Fi

added configuration st

arent familiar with and

thus its best set up rem

software. At a minimum

an auto-proxy, which h

level details, so users ne

gle address.

One of the biggest ho open, public hotspo

getting filled thanks t

support of the Hotsp

Passpoint. VonNagy sa

which uses SIM crede

phones, should roll out s

technology to rapidly a

ability for users to authe

networks using variou

OAuth, or even Google

few years.

When it comes to man

Previous Next

When evaluating a wireless vendor's offering, what's most important to you?

Most Important Vendor Evaluation Criteria

Note: Six responses allowed

Base: 363 respondents in December 2012 and 242 in September 2010 at organizations using wireless LAN technologies


R6330313/15

2013 2011

Reliability

Speedandperformance

Security

Scalability

Lowmaintenance

Easeofusefortechnologystaff

Lowoperationalcost

Lowcapitalexpenditurecost

Built-indiagnostictools

Buyingfrom

anestablishedvendor

Completewiredandwirelessnetworkintegration

Onethatself-a

djustsandtunesitself

Onenetworkmanagementsystem

forbothwir

elessandwirednetworks

Buyingfrom

asinglevendor

Built-inradiofrequencyplanningandcoveragetools

Wi-FiAlliancecertification

90%

87%

79%

74% 7

7%

76%

61

%

45% 5

0%

40%

37%

39%

24%2

8%

22%

29%

16%

16%

14%

22%

12%

9% 1

0%

18%

9%9

%

7%

7%

5%8

%

2%

6%



Figure 12
http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns673/white_paper_c11-649337.htmlhttp://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns673/white_paper_c11-649337.htmlhttp://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns673/white_paper_c11-649337.htmlhttp://blogs.cisco.com/sp/passpoint-delivers-a-new-level-of-wi-fi-usability/#more-75456http://blogs.cisco.com/sp/passpoint-delivers-a-new-level-of-wi-fi-usability/#more-75456http://blogs.cisco.com/sp/passpoint-delivers-a-new-level-of-wi-fi-usability/#more-75456http://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://www.amsys.co.uk/2012/blog/how-to-setup-proxy-servers-in-ios/http://blogs.cisco.com/sp/passpoint-delivers-a-new-level-of-wi-fi-usability/#more-75456http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns673/white_paper_c11-649337.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


18/35

WLANs, and by extens

survey shows some hole

64% of respondents camost basic attributes ab

their WLANs its p

remaining 36% to get

But this is only the sim

will augment WLAN m

work policy enforcem

and forensics analysis,

by wireless intrusion-pr

WIPS: Protect and MoA WIPS is an indepe

quency overlay to exi

continuously scans the

GHz spectrum range, n

Fi channels, for unauth

WLAN security guard

will. As intruders are det

proactively block both r

points. Such jammin

plished in several ways,

so-called deauth packefor performing denial-o

Previous Next

Aside from the RF specifications and options in 802.11n, WLAN controllers offer various features to improve performance, manageability, security and channelutilization. Which of these features are most important when selecting WLAN APs and controllers?

Most Important WLAN AP and Controller Features

Fastroaming(betweenAPs)

Bandwidthmanagement/ratelimiting

Loadbalancing

Bandsteering(automaticallycapabledevicestothe5GHzband)

Controller-basedarchitecture

RogueAPprotection

Intrusionprevention(WIPS)

NAC(networkaccesscontrol)

Usageandreportingtools

Securitypolicyenforcement(integrationwithfirewallandothersecurityservices)

IntegratedmobileVPN

QoS(voiceprioritization)

4x4MIMO

Userroles;integrationwithauthenticationsystem(

differentlevelsofuseraccess)

Airtimefairness

Layer7firewall

Bonjourgateway(AirPlay,AirPrintsupport)

Beamforming(anyimplementation;staticarrayordynamic)

Integratedspectruma

nalysisandautomated

channelassignment

Controller-lessarchitecture

Wirelessmeshing(wirelessbackhaul)

Siteplanningtools

Other

Note: Six responses allowed


Data: InformationWeek 2013 Wireless LAN Survey of business technology professionals, December 2012

R6330313/19

44%

43%

30%

29%

27%

26%

2

4%

23%

23%

22%

21%

19%

16%

14%

13%

13%

12%

11%

10%

10%

7%

7%

1%



Figure 13
http://www.thesubodh.com/2011/06/wi-fi-deauth-attack-demystified.htmlhttp://www.thesubodh.com/2011/06/wi-fi-deauth-attack-demystified.htmlhttp://www.thesubodh.com/2011/06/wi-fi-deauth-attack-demystified.htmlhttp://www.thesubodh.com/2011/06/wi-fi-deauth-attack-demystified.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://www.thesubodh.com/2011/06/wi-fi-deauth-attack-demystified.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


19/35

more sophisticated (and proprietary) tech-

niques like those used by AirTight that Phanse

was unwilling to describe in any depth.WIPS products work much like traditional in-

trusion-prevention systems, except on the RF

spectrum instead of a data network, and typ-

ically include the following features:

>> Interference detection and mitigation

via automatic channel reassignment

>> IPS and DoS prevention functionality

>> Rogue AP detection and prevention to

alleviate whats sure to be an increasingly

pressing problem as more mobile devices fea-ture the ability to set up ad hoc hotspots

using 3G/Wi-Fi tethering

>> Ability to block connections from unau-

thorized devices while ignoring neighbor net-

works on other channels a very important

feature that could get you in trouble with the

FCC if not properly implemented

>> Client monitoring, including location

tracking, so that even if an end user can

authenticate to your WPA-protected network,

he cant connect unless hes using an ap-proved device

WIPS management software typically

includes forensics features that simplify track-

ing activity from specific devices based on

time and location and that can correlate traf-

fic from specific endpoints as they roam from

AP to AP.While these systems can tame BYOD run

amuck, there are drawba

since a WIPS implementati

run independently of a W

own set of radios. These h

separate devices; howev

Cisco and others now oAP/WIPS products that int

Previous Next

How do you enroll and provision mobile devices on your WLAN?

25%

13%

14%

23%

25%

Methods Used to Enroll and Provision Mobile Devices on WLAN



Fully automated process redirected to a provisioni

Fully autommanagem

Partially autom

and enroll via

Ad hoc; new users callthe help desk or ask colleagues

Manual; we have a website or emailconfiguration instructions to new users



Figure 14
http://www.theruckusroom.net/2010/08/when-wips-really-hurt.htmlhttp://www.theruckusroom.net/2010/08/when-wips-really-hurt.htmlhttp://www.theruckusroom.net/2010/08/when-wips-really-hurt.htmlhttp://www.theruckusroom.net/2010/08/when-wips-really-hurt.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://www.theruckusroom.net/2010/08/when-wips-really-hurt.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


20/35

antenna, three-MIMO stream) AP with soft-

ware-configurable WIPS radios. AirTight

implements this as a bundled product, the AT-C60, while Cisco uses a plug-in WIPS card, the

Wireless Security and Spectrum Intelligence

Module, for its new Aironet 3600 AP. Like Air-

Tight s product, the Aironet 3600 can scan

both Wi-Fi bands while offloading monitoring

and security services from the data radios.

Despite the benefits, as shown in Figure 13,

WIPS isnt high on the checklist when our

respondents are shopping for new APs or

controllers. We think it should be.

Business and Product Trends

When we asked respondents what keeps

them up at night when comparing WLANs

with wired networks, performance came out

on top by an even bigger margin (eight

points) than two years ago. Only 11% of our

respondents are wireless-worry-free.

One reason may be that our survey doesnt

show a strong consensus on how WLANs can

best coexist with the wired infrastructure.One-third of WLAN users have merged wired

and wireless LANs into a common client net-

work, similar to the scheme used by most

home networks where clients on eithermedium can transparently access resources

on the other. Most, 51%, still logically segre-

gate WLANs into separate security zones and

virtual LANs, a design that certainly makes

sense for guest networks but strikes us as un-

necessary with a properly secured employee

(private) WLAN. Only 13

costly, and in our view, wa

ulatory requirements to thbuilding separate physica

Wireless onramping, ge

enrolled onto enterprise ne

largely a manual, end user

depressingly high 48% of o

WLAN technologies ha

Previous Next

2013 2011

How integrated are your wireless networks with your wired infrastructure?

WLAN Integration With Wired Infrastructure

Fully blended: Wireless and wired are fully integrated with no strong segmentation between the two

Logical segmentation: Wireless and wired share the physical infrastructure but are firewalled

or strongly segmented from each other (e.g., guest network, credit cardholder data network)

Physical segmentation: Wireless is a completely separate network

Dont know

Base: 363 respondents in December 2012 and 242 in September 2010 at organizations using wireless LAN technol


33%

35%

42

13%

18%

3%

5%

FAST FACT

11%of our respondents are

wireless-worry-free.



Figure 15
http://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.cisco.com/en/US/products/ps12867/index.htmlhttp://www.cisco.com/en/US/products/ps12867/index.htmlhttp://www.cisco.com/en/US/products/ps12867/index.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://www.airtightnetworks.com/home/products/AirTight-WiFi.htmlhttp://www.cisco.com/en/US/products/ps12867/index.htmlhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


21/35

means of provisioning new wireless clients;

users must call the help desk or manually sub-

mit an email or Web form to get online. Hope-fully they have an Ethernet cable. To the 27%

whove gone proactive, using some form of

fully automated process, your end users and

guests no doubt thank you.

Our survey finds that organizations are re-sponding to the need for greater wireless re-

liability by educating IT. Most are rolling

WLAN operations into exis

agement groups and p

onslaught of devices and elements by ramping up t

for existing staffers. Only

new technology tools, and

creating redundant, costl

less departments.

When evaluating new WL

respondents could best be

ota, not Tesla, shoppers: Th

pendable, leading-edge tec

ing too esoteric. When ask

important features when ev

that come standard on a

hardware top the list; see

pressed an interest in more

like beamforming; thre

MIMO; or HT duplicate and

ble, both of which optim

heterogeneous 11n/11g c

This is the first year weve p

and well be interested to

tures vendors manage to psciousness in the coming m

Previous Next

Which 802.11n features do you consider must-haves when purchasing APs?

Most Important AP Features

Dualband(2.4

and5GHzoperation)

40MHzoperationin5GHz

Bandsteering

40MHzoperationin2.4

GHz

Voice-Enterprise

Protectedmanagementframes

Beamforming

HTduplicate(improveco-existencewithlegacy

,non-1

1ndevices)

Threeormorespatialstreams

WMM-A

C(Wi-FiMultimediaExtensionsAdmissionControl)

STBC(space-t

imeblockcodingtoimproverangeandreliability)

Greenfieldpreamble(eliminatesupportfor11a

/b/gdevices)

Shortguardinterval

WMM-P

S(Wi-FiMultimediaExtensionsPowerSave)

TXA-M

PDU(link-layerframeaggregation)

Passpoint

Other

Wedonthaveanestablishedhardwarespecific

ation

Note: Multiple responses allowed


Data: InformationWeek 2013 Wireless LAN Survey of business technology professionals, December 2012

R6330313/18

56%

32%

22%

19%

17%

14%

11%

11%

9%

8%

6%

3%

3%

3%

3%

2%

2%

30%



Figure 16


22/35


23/35

trollers. Forget oversubscribing.

Looking at controllers and thick APs, the fea-

tures most important to our respondents dealwith how well they manage traffic. These in-

clude support for quick handoffs between

APs when roaming (especially critical when

doing voice over IP) and control over band-

width utilization. Further down the list, gar-nering mention by 29%, is a feature we con-

sider particularly important in optimizing

airtime and RF utilizatio

which ensures that capab

matically associated to 5 Ging up capacity at 2.4 GHz

crowded band of faster cli

The Vendor Land

As with so many

work equipmen

enterprise WLAN

of our responde

controllers and A

Theres a predic

tween the prod

respondents mo

they evaluate ven

liability rule. In a s

mand might be o

ity to cope, the

showing the gre

scalability and lo

address operatio

efficiency (see Fi

purchase price andare far down on t

Previous Next

Which wireless vendors are in use at your organization?

Wireless Vendors in Use

Cisco(controller-basedsystem)

Cisco(autonomousaccesspointsystem)

D-L

ink

Netgear

Aruba

HP/3Com

Motorola(formerlySymbol)

Juniper/BeldenTrapeze

Aerohive

Ruckus

Alcatel-Lucent(ArubaOEM)

Meraki

HP/Colubris

Enterasys/SiemensHiPath

Nortel(TrapezeOEM)

Trendnet

ZyXel

Meru

Xirrus

Adtran/Bluesocket

Extreme

Proxim

Foundry(MeruOEM)

Other




R6330313/14

52%

48%

15%

14%

13%

9%

7%

6%

5%

4%

3%

3%

3%

3%

3%

3%

2%

2%

2%

2%

2%

1%

1%

8%



Figure 18


24/35

are more concerned about getting products

that work right and are easy to expand and

manage. Now, such concern with reliability andsecurity would seem to play into the hands of

a network behemoth like Cisco, yet only 14%

say buying from an established vendor is im-

portant. We wonder if Ciscos dominance can

be sustained as IT pros get a closer look at in-

novative, and often less-expensive, products

from scrappy WLAN specialists like Aerohive,

AirTight, Aruba, Enterasys, Ruckus and Meru.

One topic our survey didnt broach is IPv6

support. Although v6 is primarily an issue for

the network core and interfacing with service

providers, its worth investigating when eval-

uating any new network equipment. Few IT

pros outside of academia are running internal

IPv6 networks. In fact, if theyre being honest,

most probably wish the whole thing would

go away. No such luck it will eventually

infiltrate every network nook and cranny.

If youre inclined to be proactive, question

WLAN vendors about their IPv6 road maps.

Mike Kouri, a product manager at Aerohive,says most WLAN vendors support IPv6 well

enough to provide basic connectivity and

adds that more sophisticated features will be

incrementally added over the next couple

years. Translation: Wireless IPv6 will work, for

those rare client devices using it, just enough

to pass traffic to a core switch that can do

something intelligent with the packets. How-ever, v6 versions of higher-level services like

DHCP and Radius arent y

you need end-to-end IPv

your evaluation criteria.

Talk Is EAP

Network convergence is

as relentless improvemenformance have rendered i

Previous Next

Does your organization run (or intend to run) voice traffic over your WLAN?

42%

43%

15%

Plans for Running Voice Traffic Over WLAN



Yes

Dont know

No



Figure 19


25/35

as both a data and storage interconnect. But

convergence isnt just happening in the

data center; its also a factor at the networkedge, where the move to voice over IP has

eliminated the need for dedicated voice cir-

cuits. Among respondents with knowledge

about voice plans, VoIP has now gone wire-

less for about half. When evaluating equip-

ment for wireless voice, most want support

for mobile device authentication methods

like EAP-AKA (a protocol for 3G UMTS sys-

tems) or EAP-SIM (protocol using SIM cards),

along with equipment meeting new stan-

dards for enterprise-grade voice quality and

reliability.

According to vonNagy, the Wi-Fi Alliances

Voice-Enterprise certification allows WLANs

to identify and prioritize voice traffic while

also enabling clients and network devices

(APs and controllers) to share information

about current network usage and available

capacity. This lets the network inform clients

about load on nearby APs so that, when

roaming, a client can make a good decisionabout which AP to reassociate with. It might

not be the one with the strongest signal, but

instead the most free bandwidth or airtime.

Th e goal is a more ef fi ci en t an d reli ab le

handoff, something thats particularly im-

portant with real-time or streaming applica-tions like VoIP.

4 Top Design Considerat

1. Mobile devices and a

The demographic shif t f

phones and tablets isnt j

and traffic, its having rippdesign. As we first outlined

Previous Next

What features do you consider important for support of voice over Wi-Fi?

Important Features for Support of Voice Over Wi-Fi

EAP types associated with voice roaming (such as EAP-AKA or EAP-SIM)

Voice-Enterprise

Proprietary voice-aware traffic handling

WMM-AC (Wi-Fi Multimedia Extensions Admission Control)

Passpoint

WMM-PS (Wi-Fi Multimedia Extensions Power Save)

Other


Base: 154 respondents at organizations running, or planning to run, voice traffic over WLAN


35%

18%

11%

5%

6%



Figure 20
http://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.informationweek.com/mobility/wlan/tablets-cause-Wi-fi-stress-truth-and-fic/240062623%20?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.informationweek.com/mobility/wlan/tablets-cause-Wi-fi-stress-truth-and-fic/240062623%20?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.informationweek.com/mobility/wlan/tablets-cause-Wi-fi-stress-truth-and-fic/240062623%20?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://www.wi-fi.org/knowledge-center/white-papers/wi-fi-certified%E2%84%A2-voice-enterprise-delivering-wi-fi%C2%AE-voice-enterprisehttp://www.informationweek.com/mobility/wlan/tablets-cause-Wi-fi-stress-truth-and-fic/240062623%20?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


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mobile devices typically have but a single an-

tenna and sometimes utilize radios with lower

transmit power. Both compromises maximizebattery life, but at a cost in Wi-Fi performance.

Weaker radios mean that signal strength for a

smartphone may be spotty in areas where lap-

tops dont have a problem. Using only a singlestream instead of the two- or three-stream

MIMO found in laptops

rates and hence longer tra

a given set of data. Sinceshared, using more airt

clients can share the same

saturated. You get the pict

While theres no denying

mobile devices take more

the same amount of data

stream laptop, Hemant Ch

nology at AirTight, says h

world testing shows mo

actually airtime constra

knowledges that, theoreti

reduced. But in practice, he

bottlenecks are usually in

not RF spectrum. Airtime

This feature of many wire

thick APs apportions con

packet frames , across mu

preventing slow clients f

available wireless spect

complex to implement cor

a better, if more expensiveprovisioning in the form

Previous Next

Wireless has many moving parts and can be complex. How will you ensure it's deployed properly and continues to run reliably?

Steps Taken to Ensure Wireless Reliability

Note: Multiple responses allowedBase: 363 respondents in December 2012 and 242 in September 2010 at organizations using wireless LAN technologies


R6330313/11

2013 2011

ContinuetosupportandaugmentourcurrentITnetworkstaff,

whichwilladdwirelesstotheirotherareasofresponsibility

Vendor-specifictrainingclassesforthenetwo

rkstaff

Investinintegratedwired/wirelesstoolsthat

enableend-to-end

diagnosisandcorrelatedalerting

Investinwireless-centricproactivediagnostic

toolsandalerting

mechanismstogiveusvisibility

Engagetheservicesofwirelessconsultingexpertstogetwirelessup

andrunningwithahandofftothecurrentstaff;callthemb

ackasneeded

Vendor-neutral"how802.1

1works"trainingforthenetworkstaff

Createandfundanewwirelessnetworking

departmentheaded

bythewirelessnetworkmanager;thisdepa

rtmentwillbetasked

withbeingexpertsinallthingswireless

Other

Wehavenoplansinthisregard

55%

43%

34%

29% 3

2%

NA

29%

28%

21%

19%

12%

4%

19%

5%

3%

2%

14%

19%



Figure 21


27/35

placed APs. What really solves your problem

is four times the capacity, he says. Your ven-

dors bottom line is helped, too.Adding APs is certainly the most straightfor-

ward solution to the problem of limited wire-

less resources, whether RF airtime or up-

stream bandwidth. And thats precisely the

strategy many vendors recommend for

schools moving into the digital age: One

tablet per child equals one AP per classroom.

Of course, this is much more realistic if clients

are dual-band. The 5 GHz band makes it easier

to densely pack APs because you dont have

to worry about co-channel interference: There

are 24 nonoverlapping channels (when using

single-wide, 20 MHz channels) versus three (at

least in the U.S.) in the 2.4 GHz band.

2. Designing for 11ac: If mobile devices are

a problem for the here and now, 11ac is an

opportunity for the future, but also one that

will instigate changes in WLAN design. Aero-

hives vonNagy expects the move to 11ac to

force a migration from controller-based to

edge-based, controllerless designs which,not coincidently, are exactly the type built by

his company. Potential bias aside, vonNagy

makes a couple of compelling arguments.

First, the maximum data rate triples from 11n

to 11ac, meaning you may not have enough

switch or even cable capacity to backhaul the

added AP traffic to central controllers. Second,the additional traffic might well overload the

controller itself. In fact, vo

almost guaranteed for o

signs, where each contr

more aggregate AP traffic

support. Its a fact that th

from 11ac clients upsets thcalculus by consuming a

Previous Next

Do your WLAN management tools allow you to identify specific device types and/or vendors, ostandards (a/b/g/n) in use?

18%

18%64%

WLAN Management Tool Capabilities



Yes

Dont know

No



Figure 22
http://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://blogs.aerohive.com/blog/wi-fi-that-wont-die/classroom-wi-fi-design-facts-for-homogenous-ipad-environmentshttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


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P i N t


29/35

tizing valid business applications.

4. Client management: MDM supplements

but does not replace WLAN management plat-forms and security products like WIPS. Air-

Tights Phanse says his customers want better

integration between their WIPS and MDM soft-

ware, something the company has made a pri-

ority and expects to deliver later this year. The

goal is the ability to pull information about

registered users from MDM servers to auto-

matically build and update a device whitelist

within the WIPS system, which would be con-

figured to block all nonregistered clients. In

this scenario, unknown devices would be for-

warded to a captive sign-in portal, and once

registered in the MDM system, immediately in-

corporated into the WIPS policy whitelist and

allowed to access the network. Its a com-

pelling vision and one we expect multiple ven-

dors to address in the coming year.

Conclusions and Recommendations

Wireless networks arent just the client-ac-

cess mechanism of choice, but often of neces-sity as fewer of the devices employees use

every day even have wired ports. To properly

manage this transition, IT teams must apply

the same level of effort, types of softwaretools, and staffing focus and training as we

have with wired network administration. Here

are a few tips on preparing for the all-wireless

future.

1. Budget for increased mobile use and

802.11ac: Almost nine out of 10 respondents

use WLAN technologies as an access method

for end users. Next time we run this survey, we

expect an even stronger result. Plan and allo-

cate funds for higher-density AP deploy-

ments; distributed, controllerless designs; and

an aggressive migration to 5 GHz. With 11ac

on the horizon, consider upgradeable hard-

ware in the near term to get a bit of invest-

ment protection, and actively evaluate 11ac

products as they arrive later this year. Several

APs, including Ciscos Aironet 3600 Series and

Xirrus entire product line, have modular de-

signs that allow radios to be upgraded.

2. Reassess network-use policies: More

personal endpoints equal more likelihood ofemployees accessing nonwork sites. Many,

like streaming music or mo

bandwidth hogs. While we

work, no-play policies, wiscarce resource in many o

must be used judiciously

through policies and train

Berenbaum advises startin

streaming media sites tha

bandwidth but arent bus

requires a nuanced appro

employees cooperation a

look for APs with built-in

and WIPS features that ca

categories like voice and b

APs and clients that could

trum. But beware: WIPS ca

mented; poorly designed s

gitimate traffic from neigh

3. Consider cloud-bas

configuration and securi

so many software categorie

tive option for WLAN man

larly for small and midsize

ucational institutions thatresources; businesses subj

Previous Next



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izations deploying wireless across many loca-

tions, like branch offices or retail storefronts.

Several WLAN vendors, including Aerohive,AirTight, Cisco Meraki and D-Link offer cloud-

based administration consoles that can

greatly simplify WLAN deployment. We dis-

cuss the finer points of cloud-based WLAN

management in this Buyers Guide.

4. Monitor pending FCC rulings opening

up new 5 GHz spectrum: At CES, FCC Chair-

man Julius Genachowski announced plans to

release up to 195 MHz of spectrum in the un-

licensed 5 GHz band, a move that would ex-

pand capacity by 35%, or roughly four 40

MHz channels. According to vonNagy, de-

pending on how the agency ends up speci-

fying spectrum-sharing requirements, the

new frequencies could be usable by existing

DFS (dynamic frequency selection) schemes

[PDF] and thus be made available merely by

a firmware update. Should the agency re-

quire more stringent interference controls,

new hardware will be required. A final FCC

ruling is expected this spring, in plenty oftime to incorporate into new 11ac hardware.

5. Look for creative new ways of using

wireless devices to deliver ROI: Most smart-

phones and many tablets have GPS chips pro-viding location information. While these are

great for maps and finding nearby restau-

rants, they can also be used for enterprise ap-

plications that formerly required dedicated lo-

cation sensors. Berenbaum is seeing increased

interest in using GPS or Wi-Fi positioning sys-

tems to track equipment or dispatch repair

personnel. Alternatively, in retailing, cus-

tomers are now trackable: Theyre constantly

sending out Wi-Fi beacons, meaning software

can map how people move about a store and

measure how long they stand in line or

browse various departments. Implementing

such systems does require planning, not only

to add the back-end intelligence to monitor

movement and trends in specific areas but to

address legitimate privacy concerns. Consider

anonymizing the data so that MAC addresses

or UUIDs are not persistently stored or tied to

specific customer records.

Previous Next



Previous Next
http://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/abstract/18/9005/Mobility-Wireless/Research:-Cloud-Managed-WLAN-Buyer's-Guide.html?cid=iwrpdf_body%ED%9F%B633wlanhttp://www.fcc.gov/document/chairman-announces-effort-increase-wi-fi-speedshttp://www.ieee802.org/18/Meeting_documents/2007_Nov/WFA-DFS-Best%20Practices.pdfhttp://en.wikipedia.org/wiki/Wi-Fi_positioning_systemhttp://www.networkcomputing.com/wireless/wi-fi-turns-into-retail-spy/240146856http://reports.informationweek.com/indexhttp://reports.informationweek.com/indexhttp://reports.informationweek.com/index


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reports 2 0 1 3 W i r e l

A

PPENDIX

Table of Contents

Which of the following best describes your job title?

37%

3%

2%2%

40%

10%6%

Job Title

Data: InformationWeek 2013 Wireless LAN Survey of 419 business technology professionals, December 2012 R6330313/2

IT executive management (C-level/VP)

IT director/manager

Other

Non-IT executive management (C-level/VP)

Line-of-business management Consultant

IT/IS staff

Figure 24

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Previous Next



What is your organizations primary industry?

Industry

Construction/engineering

Consultingandbusinessservices

Education

Electronics

Financialservices

Government

Healthcare/medical

ITvendors

Manufacturing/industrial,noncomput

er

Media/entertainment

Nonprofit

Retail/e-commerce

Telecommunications/ISPs

Utilities

Other

Data: InformationWeek 2013 Wireless LAN Survey of 419 business technology professionals, December 2012 R6330313/23

2%

5%

16%

2%

7%

13%

10%

4%

12%

3%

4%

2%

4%

2%

14%

Figure 25

Previous Next
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Which of the following dollar ranges includes the annual revenue of your entire organization?

12%

13%

9%

8%1

2013 wireless lan survey

Documents