Wi-Fi in EducationA Technology Update Bruce Alexander– Mobility Sales Specialist brucea@cisco.com September 2013 © 2010 Cisco and/or its affiliates. All rights reserved. Cisco 1 • • • • Latest Wi-Fi Standard- 802.11ac BYOD Trends in Education Key Wi-Fi system features for Schools Architecture Overview• What’s right for you? © 2013 Cisco and/or its affiliates. All rights reserved. Cisco 2 Without Proper Planning, Enterprises Deploying iPads Will Need 300% More Wi-Fi © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3 3 The next generation 11s Demanding managed, reliable & secure connections anywhere with high performance for any application 11ai 11ah 11af 11ad 11ac 11ae 11aa 11z 11u 11v 11p In development 11n 11w Ratified Delighted to be connected 91-93 94 95 © 2012 Cisco and/or its affiliates. All rights reserved. 96 11-1997 97 98 11b 11a Wi-Fi Origin Delighted to be securely connected 802.11 std 11y 11r 11k 11e 11j 11i 11h 11g 11d 11-1999 99 00 01 02 11-2003 03 04 05 06 11-2007 07 08 09 10 11 12 13 Cisco Confidential 4 4 802.11ac – The new ‘Defacto Standard’ © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5 Nice to Have Pervasive Media Rich Applications Mission Critical BANDWIDTH 10Gbps Future 802.11ac-2 3.5 Gbps 802.11ac-1 1 Gbps CLIENTS / 802.11n 450 Mbps 802.11a, 802.11b 11 Mbps 802.11g 54 Mbps 11Mbps Early 2000 © 2012 Cisco and/or its affiliates. All rights reserved. 2002 2004 2006 2008 2010 2012 2014 2016 Cisco Confidential 6 WFA Certification & IEEE Timeline CY 2012 Q1 Q2 Consumer class devices from Linksys and Netgear Q3 IEEE 802.11ac Ratification Wave 1 Wave 2 CY 2013 Q4 Q1 Q2 LinkSys 1x1 AC USB Q3 CY 2014 Q4 802.11ac mobile devices First 802.11ac laptops Cisco 802.11ac Module for Aironet 3600 Series Q1 Q2 Q3 … Q4 Client proliferation continues: Handets?, Tablets? Intel Ultrabooks ? Apple MacBooks?, iOS? Samsung S 4 ZTE Grand Memo 802.11ac Wave2 Starts to Roll 1H CY15 HTC One © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7 * Assumes 160 MHz channel width is available and usable 802.11ac = game changer 802.11n 802.11ac 2.4GHz & 5.0GHz 5.0GHz only 65 Mbps – 600 Mbps 290 Mbps – 6.9 Gbps Band PHY Rate MAC Throughput 6900* 6900* Mbps Mbps 3500* Mbps 1300 Mbps 45 Mbps – 420 Mbps 194 Mbps – 4.8 Gbps 4 8 Spatial Streams 64 QAM 2430* Mbps 4SS @ 160 3SS @ 160 3SS @ 80 1730 600 Mbps Mbps Modulation 8SS @ 160 2SS @ 160 870 256 QAM Mbps Channel Width MIMO 450 20 or 40 MHz 20, 40, 80, *80+80, 160 MHz Mbps Single User -SU Multi User – MU (with Wave 2) 300 Key benefits: • Increased performance and throughput • Improved battery life 54 Mbps 290 290 Mbps Mbps 1SS @ 80 65 Mbps Mbps 24 11 2 Mbps Mbps Mbps 802.11 © 2012 Cisco and/or its affiliates. All rights reserved. 802.11b 1999 802.11ag 2003 802.11n 2007 Wave 1 802.11ac Wave 2 802.11ac 2013 2015 Cisco Confidential 8 802.11ac Wave 1 Potential Throughput @ 80 MHz faster connectivity = shorter active radio time = better battery life 802.11ac Performance Table BW (MHz) # Spatial Streams MCS (QAMr5/6) PHY Rate (Mbps) MAC Thruput (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 Single GbE port on the AP3600 - More than sufficient bandwidth from the full duplex GbE port on the AP3600 1x1 Smartphones from 260 Mbps* 1x1 2x2 Tablets from 520 Mbps* 2x2 3x3 High End Laptops from 780 Mbps* * Assumes 60% MAC efficiency Not all Clients will be created equal – early chip drops and quality of components - mileage will vary Rate & Range, Environment and Deployment will impact coverage and quality © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 9 802.11ac 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 Feature Wave 1 – 2013 Wave 2 – 2014/2015 Features still in Discussions 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 20, 40, 80 MHz 20, 40, 80 MHz 20, 40, 80 MHz 20, 40, 80, 80+80, 160 MHz 20, 40, 80, 80+80, 160 MHz Single User Multi User Multi User Multi User Multi User a, n, ac a, n, ac a, n, ac a, n, ac a, n, ac PHY Rate Channel Width MIMO 802.11 protocol support Ethernet Uplink © 2012 Cisco and/or its affiliates. All rights reserved. GbE GbE and 10GbE Cisco Confidential 10 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. © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 11 When to Deploy AC 1. 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. © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 12 © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 13 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-usbadapter_stcVVproductId153081401VVcatId553466VVviewprod.htm Asus – USB-AC53 – 2x2 - http://www.asus.com/Networking/USBAC53/ NetGear – A6200 – 2x2 - http://www.netgear.com/home/products/wireless-adapters/ultimate-wirelessadapters/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-usbadapter Buffalo – 2x2 - http://www.buffalotech.com/products/wireless/client-adapters/airstation-ac866-dual-band-wireless-usbadapter Edimax – 2x2 - http://www.edimax.com/en/produce_detail.php?pd_id=479&pl1_id=28&pl2_id=138 © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 14 • • • • Latest Wi-Fi Standard- 802.11ac BYOD Trends Key Wi-Fi system features Architecture Overview © 2013 Cisco and/or its affiliates. All rights reserved. Cisco 15 © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 16 Trusted Wifi Authenticate User Fingerprint Device Apply Appropriate Config Administrative Apps Automatic Policies © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 17 Trusted WiFi Mobile Device Management Identity Services Engine Apply defined policy profiles based on: Device Type User Location Application Aironet 3600 Prime Management © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 18 LIMITED BASIC ENHANCED ADVANCED Environment Requires Tight Controls Basic access for additional devices Any device, anywhere, enhanced security Corp Native Applications, New Services, Full Control School Only Device Broader Device Types but Internet Access Only Multiple Device Types + Access Methods Facility and student owned devices - on-site and off-site access Device-side Security Any Device, Any Ownership IT Managed devices with on-site access only All other devices prohibited © 2012 Cisco and/or its affiliates. All rights reserved. IT managed devices – limited off-site access (mail, calendar) Internet access only for Guest Devices Custom Apps Enhanced Guest Services Multi-media Collaboration Cisco Confidential 19 Policy Management – ‘A MUST HAVE’ A System to Implement Technical Policy I want to allow the “right” users and devices on my network Authentication Services I want user and devices to receive appropriate network services Authorization Services I want to allow guests into the network I need to allow/deny iPADs in my network (BYOD) Simplified Policy Management I want to allow the “right” users and devices on my network I need a scalable way of authorizing users or devices in the network © 2012 Cisco and/or its affiliates. All rights reserved. Guest Lifecycle Management Profiling Services Provisioning Services Security Group Access Management Cisco Confidential 20 • • • • Latest Wi-Fi Standard- 802.11ac BYOD Trends Key Wi-Fi system features Architecture Overview © 2013 Cisco and/or its affiliates. All rights reserved. Cisco 21 Spectrum Analysis Technology proactive and automatic interference protection BEFORE Wireless interference decreases reliability and performance AFTER Active Spectrum Analyses solution can mitigate RF interference and improving reliability and performance Wireless Client Performance AIR QUALITY PERFORMANCE AIR QUALITY PERFORMANCE Active Spectrum Analysis– Improves Reliability and Performance © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 22 Transmit Beamforming Technology Advanced beam forming technology improves wireless client performance BEFORE Beam not directed towards client resulting in lower performance X Beam Strength AFTER Beam directed towards client resulting in better performance Wireless Client Performance 802.11n Beam Forming 802.11n Beamforming: throughput, channel capacity, battery life © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 23 Theoretical RF Coverage TxBFSmoothes out coverage Real RF Coverage © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 24 Automatic Band Steering and Selection for 5GHz Capable Devices BEFORE All clients crowd the 2.4GHz spectrum lowering performance AFTER 5GHz capable clients are automatically moved to cleaner 5GHz spectrum Wireless Client Performance 2.4GHz 2.4GHz Speed Speed 5GHz Capable 5GHz Capable 2.4GHz Speed 2.4GHz Capable 5 GHz 5 GHz Speed Speed 5GHz Capable 5GHz Capable 2.4GHz Speed 2.4GHz Capable Automatic Band Selecting —Improves Predictability and Performance © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 25 Video Streaming – improving educational delivery Optimizing end-to-end video starting at the Access Point Multicast to Unicast Conversion at the AP Selectable Stream Prioritization Resource Reservation Prevents Oversubscription VIDEO NOT AVAILABLE Multicast Stream AP High Priority Event AP Meeting Room Event Live Sporting Event WLC AP Up to 30X Less Bandwidth Consumed with proper Video Streaming © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 26 New in 7.4 Apple Bonjour and other consumer protocol service (mDNS) gateway BEFORE Isolated Apple Bonjour Network AFTER Bonjour Discovery, Advertisement & Policy HP Printer HP Printer mDNS & Bonjour Services NOT Routed Apple TV Enterprise / Higher Education / K-12 Routed Network Routed Network X Apple TV Apple TV Apple TV mDNS Profiles Policy & Control WLAN Controller WLAN WLAN Isolated Services No Network Policy L2 Only Service Cache and advertise VLAN and WLAN Policy Enforcement Services Across L3 boundary Bonjour Services Directory Apple Bonjour discovery, advertisement and policy © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 27 Application Visibility and Control Call of Duty © 2012 Cisco and/or its affiliates. All rights reserved. Instant Messaging Netflix Cisco Confidential 28 Identify standard ports, L7 Deep Packet Inspection and Heuristics BEFORE Application View & Control based on Firewall sessions AFTER Network Based Application Recognition - NBAR2 Deep Packet Inspection and App ID Visibility to the port level interaction but not the applications running within the port First Generation Firewall HTTP = 75% SMTP = 15% FTP = 2% Telnet = 1% SNMP = 3% Wireless LAN Controller Netflix = 50% YouTube = 15% WebEx = 10% Citrix = 9% exchange= 8% Traffic NBAR2 LIBRARY Deep Packet inspection POLICY Packet Mark and Drop Netflow v9 export • 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 © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 29 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 © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 30 • • • • • Latest Wi-Fi Standard- 802.11ac BYOD Trends Key Wi-Fi system features Analytics Architecture Overview © 2013 Cisco and/or its affiliates. All rights reserved. Cisco 31 Present Wi-Fi Architectural Options One Policy, One Management, One Network New! Autonomous Simplicity © 2012 Cisco and/or its affiliates. All rights reserved. Centralized Controller Local Switching (remote AP) Cloud Deployment Flexibility Ease of use Cisco Confidential 32 Centralized controller vs. Local switched Locally Switched- Data does NOT flow across WAN unless destination is across LAN WAN Destination Destination Remote Facility Primary Site © 2012 Cisco and/or its affiliates. All rights reserved. CAPWAP Tunnel Dataflow Management traffic Cisco Confidential 33 On Site Controller vs Cloud Controller Ownership 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. © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 34 Cloud-managed networking architecture Network endpoints securely connected to the cloud Cloud-hosted centralized management platform Intuitive browser-based dashboard © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 35 Start Which Mobility Solution should you position? Do you prefer ownership or a subscription consumption model for network infrastructure? On Site Controller or Cloud Controller… Ownership Leased or Doesn’t Matter Lean IT What is the bandwidth of your technical team who will manage the wireless network? Wide Cloud Cloud Networking Mobility Solution © 2012 Cisco and/or its affiliates. All rights reserved. Where do you prefer the configuration and statistics be stored for your network infrastructure? Doesn’t Matter Onsite Enterprise Networking Mobility Solution Cisco Confidential 36 • One Policy (Wired and Wireless) • One Network (what is you biggest Network access Method today? • Therefore ONE MANAGEMENT © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 37 Thank You! © 2012 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 38