Cisco © 2010 Cisco and/or its affiliates. All rights reserved. 1

Wi-Fi in Education- A Technology Update

Bruce Alexander– Mobility Sales Specialist

brucea@cisco.comSeptember 2013

Cisco© 2013 Cisco and/or its affiliates. All rights reserved. 2

Agenda• Latest Wi-Fi Standard- 802.11ac• BYOD Trends in Education• Key Wi-Fi system features for Schools

• Architecture Overview-

• What’s right for you?

© 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 333

Gartner on Mobility: Oct 2011

Without Proper Planning, Enterprises Deploying iPads

Will Need 300% More Wi-Fi

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11ac11ad

91-93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 0811-1999 11-2003 11-2007

11w

11s

11u

Delighted to be connected

Delighted to besecurely connected

Demanding managed, reliable & secure

connections anywherewith high performance

for any application

11v

09

In development

Ratified

10

The next generation

11ah11af

11ai

11

11k11r

11e

11i11h

11d11b

11j

12

11aa11ae

11a

11g

11y

11n

11z

11-1997

4

11p

13

Wi-F

i Orig

in

802.

11 s

td

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802.11ac – The new ‘Defacto Standard’

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Wireless Standards – Past, Present, and Future

Early 2000 2002 2004 2006 2008 2010 2012 2014 2016

CL

IEN

TS

/ B

AN

DW

IDT

HMedia Rich ApplicationsPervasive Mission CriticalNice to Have

10Gbps

11Mbps

802.11n450 Mbps

802.11a, 802.11b11 Mbps

802.11g54 Mbps

802.11ac-11 Gbps

802.11ac-23.5 Gbps

Future

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LinkSys 1x1AC USB

802.11ac mobile devices

WFA Certification & IEEETimeline

CY 2012 CY 2013 CY 2014Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Consumer class devices from Linksys and

Netgear First 802.11ac laptops

Cisco 802.11ac Module for Aironet

3600 Series

Client proliferation continues:Handets?, Tablets?

Intel Ultrabooks ?Apple

MacBooks?, iOS?

802.11ac Wave2

Starts to Roll1H CY15

IEEE 802.11acRatification

Wave 2

HTC One

ZTE Grand Memo

Samsung S 4

Wave 1

…

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600Mbps

450Mbps

802.11

1999 2003 2007

2 Mbps

11 Mbps

802.11b

54Mbps

802.11ag

24Mbps

300Mbps

65Mbps

802.11n

6900*Mbps

1300Mbps

870Mbps

290Mbps

6900*Mbps

3500*Mbps

290Mbps

Wave 1802.11ac

Wave 2802.11ac

Standar

d Max

imum

Product M

aximum

Typical

Minimum

* Assumes 160 MHz channel width is available and usable802.11ac – Scope and Waves802.11ac = game changer

802.11n 802.11ac

Band 2.4GHz & 5.0GHz 5.0GHz only

PHY Rate 65 Mbps – 600 Mbps 290 Mbps – 6.9 Gbps

MAC Throughput 45 Mbps – 420 Mbps 194 Mbps – 4.8 Gbps

Spatial Streams 4 8

Modulation 64 QAM 256 QAM

Channel Width 20 or 40 MHz20, 40, 80, *80+80, 160

MHz

MIMO Single User -SUMulti User – MU

(with Wave 2) 1SS @ 80

2SS @ 160

8SS @ 160

Key benefits:• Increased performance and throughput• Improved battery life

2013 2015

4SS @ 160

3SS @ 80

2430*Mbps

1730Mbps

3SS @ 160

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BW (MHz)

# Spatial Streams

MCS (QAMr5/6)

PHY Rate (Mbps)

MAC Thru-put (Mbps)*

80 1 64 290 175

80 1 64 330 200

80 1 256 430 260

80 2 64 650 390

80 2 256 870 520

80 3 64 980 590

80 3 256 1300 780

80 4 256 1700 1020

80 8 256 3500 2100

802.11ac Wave 1 Potential Throughput @ 80 MHz

Smartphones from 260 Mbps*

Tablets from 520 Mbps*

High End Laptops from 780 Mbps*

BYOD CONTINUES

802.11ac Performance Table

* Assumes 60% MAC efficiency

Not all Clients will be created equal – early chip drops and quality of components - mileage will varyRate & Range, Environment and Deployment will impact coverage and quality

1x1

1x12x2

2x23x3

faster connectivity = shorter active radio time = better battery life

Single GbE port on the AP3600 - More than sufficient bandwidth from the full duplex GbE port on the AP3600

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802.11ac Wave-1 and Wave-2 * The 802.11ac specification will be brought to market in 2 phases or “Waves”* Each Wave of 802.11ac will require new chip sets

FeatureWave 1 – 2013 Wave 2 – 2014/2015

Features still in Discussions

PHY Rate 1.3 Gbps 1.3 Gbps 1.73 Gbps 2.6 Gbps 3.5 Gbps

# of Spatial Streams

3 3 4 3 4

Modulation 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM

Channel Width

20, 40, 80 MHz 20, 40, 80 MHz 20, 40, 80 MHz20, 40, 80,

80+80, 160 MHz20, 40, 80,

80+80, 160 MHz

MIMO Single User Multi User Multi User Multi User Multi User

802.11 protocol support

a, n, ac a, n, ac a, n, ac a, n, ac a, n, ac

Ethernet Uplink GbE GbE and 10GbE

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How about Multi-User MIMO (MU-MIMO)Does it work? Any caveats?

• 802.11ac MU MIMO is like 802.11n MIMO, except instead of one client,

there are up to four (or more) clients

• In MU pre-coding, when AP beam-forms space-time streams to one client, it simultaneously null-steers those space-time streams to the rest.

• MU-MIMO is technically risky and challenging:

• Needs precise channel estimation (CSI) to maintain deep nulls

• Precise channel estimation adds overhead

Null-steering:To send data to user 1, the AP forms a strong beam toward user 1, shown as the top-right lobe of the blue curve. At the same time the AP minimizes the energy for user 1 in the direction of user 2 and user 3. This is called "null steering" and is shown as the blue notches. Same logic applies to red and yellow beams.

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When to Deploy AC1. When Clients are available

2. 802.11ac is backward compatiable to 802.11a/b/g/n systems

• When adding any new APs, consider deploying 802.11ac

3. But is Cost a factor?

• It should not be. 802.11ac is available at the SAME PRICE as high end 802.11n Aps.

4. What about Wave 2?

• Make sure you vendor has a migration path WITH investment protection.

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Next Generation of Devices

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Today’s 802.11ac Clients• Integrated Mobile devices – Shipping as of August 2013!!!!

Samsung S 4 - http://www.samsungmobilepress.com/2013/03/14/GALAXY-S-4-1

HTC ONE – http://www.htc.com/us/smartphones/htc-one/#specs

ZTE Grand Memo - http://www.zteusa.com/news-zte-launches-grand-memo/

Intel based Ultrabooks – 2x2 802.11ac Wave 1

Apple – 1x1, 2x2 and 3x3 802.11ac Wave 1

• USB Clients - Shipping

LinkSys AE6000 – 1x1 - http://store.linksys.com/linksys-ae6000-wifi-wireless-ac-dual-band-mini-usb-adapter_stcVVproductId153081401VVcatId553466VVviewprod.htm

Asus – USB-AC53 – 2x2 - http://www.asus.com/Networking/USBAC53/

NetGear – A6200 – 2x2 - http://www.netgear.com/home/products/wireless-adapters/ultimate-wireless-adapters/a6200.aspx

Belkin - 2x2 - http://www.belkin.com/us/F9L1106-Belkin/p/P-F9L1106

D-Link – 2x2 - http://www.dlink.com/us/en/home-solutions/connect/adapters/dwa-182-wireless-ac1200-dual-band-usb-adapter

Buffalo – 2x2 - http://www.buffalotech.com/products/wireless/client-adapters/airstation-ac866-dual-band-wireless-usb-adapter

Edimax – 2x2 - http://www.edimax.com/en/produce_detail.php?pd_id=479&pl1_id=28&pl2_id=138

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Agenda• Latest Wi-Fi Standard- 802.11ac• BYOD Trends• Key Wi-Fi system features• Architecture Overview

© 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 16

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Authenticate User

Fingerprint Device

Apply Appropriate Config

Administrative Apps

Automatic Policies

Trusted Wifi

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Identity Services Engine

Aironet 3600

Prime Management

Apply defined policy profiles based on: Device Type User Location Application

TrustedWiFi

Mobile Device Management

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The BYOD Spectrum

EnvironmentRequires Tight Controls

School Only Device

IT Managed devices with on-site access only

All other devices prohibited

Basic access for additional devices

Broader Device Types but Internet

Access Only

IT managed devices – limited off-site access

(mail, calendar)Internet access only for

Guest Devices

Any device, anywhere, enhanced security

Multiple Device Types + Access MethodsFacility and student

owned devices - on-site and off-site access

Device-side Security

Corp Native Applications, New Services,Full Control

Any Device, Any Ownership

Custom AppsEnhanced Guest

ServicesMulti-media

Collaboration

LIMITED ADVANCEDENHANCEDBASIC

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Simplified Policy Management

Policy Management – ‘A MUST HAVE’ A System to Implement Technical Policy

Authentication ServicesI want to allow the

“right” users and devices on my network

Authorization ServicesI want user and devices

to receive appropriate network services

Guest Lifecycle Management

I want to allow guests into the network

Profiling Services

I need to allow/deny iPADs in my network (BYOD)

ProvisioningServices

I want to allow the “right” users and devices on my

network

Security Group Access Management

I need a scalable way of authorizing users or devices

in the network

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Agenda• Latest Wi-Fi Standard- 802.11ac• BYOD Trends• Key Wi-Fi system features• Architecture Overview

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Spectrum Analysis Technologyproactive and automatic interference protection

BEFOREWireless interference decreases reliability and performance

AIR QUALITY PERFORMANCE

Active Spectrum Analysis– Improves Reliability and Performance

AFTERActive Spectrum Analyses solution can mitigate RF interference and improving reliability and performance

AIR QUALITY PERFORMANCE

Wireless ClientPerformance

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Transmit Beamforming TechnologyAdvanced beam forming technology improves wireless client performance

Beamforming: throughput, channel capacity, battery life

BEFOREBeam not directed towards client resulting in lower performance

802.11n

Beam StrengthX

AFTERBeam directed towards client resulting in better performance

Beam Forming

802.11n

Wireless ClientPerformance

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So Does Transmit Beamforming mean larger cells?Yes and No

Theoretical RF Coverage

Real RF Coverage

TxBFSmoothes out coverage

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Band Selecting TechnologyAutomatic Band Steering and Selection for 5GHz Capable Devices

BEFOREAll clients crowd the 2.4GHz

spectrum lowering performance

AFTER5GHz capable clients are automatically

moved to cleaner 5GHz spectrum

Automatic Band Selecting —Improves Predictability and Performance

Wireless Client Performance

2.4GHz CapableSpeed

5GHz CapableSpeed

5GHz CapableSpeed

2.4GHz CapableSpeed

5GHz CapableSpeed

5GHz CapableSpeed

2.4GHz2.4GHz2.4GHz2.4GHz 5 GHz 5 GHz

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Video Streaming – improving educational deliveryOptimizing end-to-end video starting at the Access Point

Multicast to Unicast Conversion at the AP

Up to 30X Less Bandwidth Consumed with proper Video Streaming

Resource Reservation Prevents OversubscriptionSelectable Stream Prioritization

Multicast Stream

AP

WLC AP

VIDEONOT

AVAILABLE

APHigh Priority Event

Meeting Room Event

Live Sporting Event

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Bonjour Services Apple Bonjour and other consumer protocol service (mDNS) gateway

BEFOREIsolated Apple Bonjour Network

AFTERBonjour Discovery, Advertisement & Policy

Bonjour Services Directory Apple Bonjour discovery, advertisement and policy

Enterprise / Higher Education / K-12

Isolated Services

No NetworkPolicy

L2Only

Service Cache and advertise

VLAN and WLAN Policy

Enforcement

Services Across L3 boundary

Routed Network

Apple TV Apple TV

HP Printer

WLAN

X

mDNS & Bonjour Services NOT Routed

Routed Network

Apple TV Apple TV

HP Printer

WLAN

WLAN Controller

mDNS ProfilesPolicy & Control

New in 7.4

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Call of DutyNetflix

Instant Messaging

Application Visibility and Control

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Application Visibility & ControlIdentify standard ports, L7 Deep Packet Inspection and Heuristics

BEFOREApplication View & Control based on Firewall sessions

AFTERNetwork Based Application Recognition - NBAR2

Deep Packet Inspection and App ID

NBAR2 LIBRARYDeep Packet inspection

Traffic

POLICYPacket Mark and

Drop

Wireless LAN Controller

First GenerationFirewall

Visibility to the port level interaction but not the applications running within the port Netflix = 50%

YouTube = 15%WebEx = 10%Citrix = 9%exchange= 8%

Netflow v9 export

HTTP = 75%SMTP = 15%FTP = 2%Telnet = 1%SNMP = 3%

• Classify applications with sub-classification within applications: e.g. Lync – desktop share, video/voice, file transfer

• Apply Granular policies - Per SSID, Device, Campus, Building, Floor

• Real-time troubleshooting on the Wireless LAN Controller

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AP’s: What’s under the hood DOES matter

More Memory Faster Memory Faster CPU Active Spectrum Analysis Transmit Beam Forming Band Select More Spatial Streams 2 x 2:2, 3 x 3:3 and 4 x 4:3

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Agenda• Latest Wi-Fi Standard- 802.11ac• BYOD Trends• Key Wi-Fi system features• Analytics• Architecture Overview

© 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 32

Present Wi-Fi Architectural Options

One Policy, One Management, One Network

Simplicity Deployment Flexibility Ease of use

Autonomous Centralized Controller

Local Switching (remote AP)

Cloud

New!

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Centralized controller vs. Local switched

CAPWAP TunnelDataflow

Destination

Primary Site

Management traffic

WAN

Remote Facility

Destination

Locally Switched- Data does NOT flow across WAN unless destination is across LAN

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On Site Controller vs Cloud ControllerOwnership and Subscription differences

• Ownership – is the traditional consumption model for network infrastructure for the majority of the market at this time. For many businesses the only methods they can purchase network components with is either outright purchase or a lease with ownership transfer at lease end. If “Ownership” is the preferred consumption model then go with Enterprise Unified Access.

 

• Subscription – is a new and increasingly popular consumption model for network infrastructure in which the hardware is purchased and owned outright in the traditional sense, but the software that runs and manages the hardware is sourced via the Cloud as a recurring subscription. If the subscription is not maintained the hardware becomes inoperable. If “Subscription” is the preferred consumption model then go with Cloud Managed Unified Access.

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Cloud-managed networking architecture

Network endpoints securely connected to the cloud

Cloud-hosted centralized management platform

Intuitive browser-based dashboard

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Start

Do you prefer ownership or a

subscription consumption model

for network infrastructure?

Enterprise Networking Mobility

Solution

Where do you prefer the configuration and statistics be stored for

your network infrastructure?Cloud

Onsite

Leased or Doesn’t Matter

Ownership

Wide

Lean IT

Cloud Networking Mobility Solution

What is the bandwidth of your

technical team who will manage the

wireless network?

Which Mobility Solution should you

position?

On Site Controlleror

Cloud Controller… 

Doesn’t Matter

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Wi-Fi Management• One Policy (Wired and Wireless)

• One Network (what is you biggest Network access Method today?

• Therefore ONE MANAGEMENT

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Thank You!