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Successful Wireless LAN Implementation It’s all about Consistency and application delivery

Successful Wireless LAN Implementation It’s all about Consistency and application delivery. Gartner’s Enterprise WLAN Product Evolution: Meru is 4 th Gen Leader. 3 rd Centralized. 4 th Traffic-Optimized. 2 nd Stand-Alone. 1 st Pre-802.11. 2000-2002. 2005-2006. 2003-2004. Coordinated

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Successful Wireless LAN Implementation It’s all about Consistency and application delivery

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  1. Successful Wireless LAN Implementation It’s all about Consistency and application delivery

  2. Gartner’s Enterprise WLAN Product Evolution: Meru is 4th Gen Leader 3rdCentralized 4thTraffic-Optimized 2nd Stand-Alone 1st Pre-802.11 2000-2002 2005-2006 2003-2004 • Coordinated • Single-span channels • Core controllers • Edge controllers • Overlays Services / Scale Cisco 1200+SWAN Symbol Aruba, Trapeze, Airespace … Meru Networks Cisco 350 ORiNOCO RoamAbout RF Intelligence High Density QoS Zero Handoff Basic Connectivity Central Management Security Source: Gartner

  3. Meru is Visionary with 4th Generation WLAN challengers leaders 2006-2007 change Cisco Systems Symbol Technologies Aruba Networks Trapeze Networks Meru Networks ability to execute Nortel Networks 3Com Bluesocket HP Procurve Siemens Colubrius Extreme Networks Alcatel Foundry Networks Extricom Xirrus Enterasys Networks niche players visionaries completeness of vision As of September 2006 Source: Gartner Dataquest (September 2006)

  4. Broad Market AdoptionSample Customers Meru Networks Confidential Higher Ed & K-12 Healthcare Enterprise Government Industrial & Retail Education

  5. Meru Networks Solution Ecosystem Clients & Applications Infrastructure Security

  6. End Users Demand: Guaranteed Delivery For Real-World mission critical Applications V O I P WE B VID E O E M R AS S E T T R K T E ACHI N G T R A D IN G I N V E N T O R Y W O R K F L O W NE WAPP S Strategic Applications Future Apps New Wireless LANExisting Wired Network, PBX, Security Wi-Fi GettingEmbedded in Variety of Devices

  7. Delivering Consistency (Wi-Fi vs. Wired) • On the Wire it is pretty straightforward • High Performance L2/L3 switches are a commodity • Hubs, 10M Switches, 100M Switches, Gig Switches, • CAT5, CAT6, Fiber, etc…… • QoS Capabilities are mature • Adding additional capacity is easy • More switches = more capacity • But What about Wireless? • There are Inherent Challenges to consistent (Application) Delivery …

  8. Wi-Fi basics and issues • 802.11 Standards: • 11b – 11M, 2.4G Band, 3 channels • 11g – 54M, 2.4G Band, 3 channels • 11a – 54M, 5G Band, 11 Channels • 11n – 300M, both 2.4G and 5G Bands • Over the Air Challenges: • QOS: Application Delivery & Consistent Performance • Complex Channel planning, Site Surveys • Sticky Clients, Slow Clients • Ping – Pong effect • Roaming Most Popular

  9. 11 6 6 1 1 1 1 1 1 1 11 11 6 Wi-Fi basics • There are 3 channels(Ch 1, 6, 11) 54Mbps 1Mbps

  10. How WiFi Works – The Problem • Collisions are common and costly 1/3 access 1/10 accessto channel • AP doesn’t get more access to channel Ack • More devices mean more collisions Packet Packet • Only AP is wired Retransmission wait random backoff

  11. Active Users Per AP 100+ Meru AP Performance 20-25 Others Meru Meru Air Traffic Control TechnologyPredictable Performance with Density Peak Aggregate Throughput 11 8 5 Contention Loss Total Bandwidth at Peak (Mbps) Today’s APPerformance 1 3 20-25 Number of Active Users The only way to get good performance is to limit the number of devices

  12. 1 Meru AP + 20 Clients 1 AP + 20 Clients Throughput Throughput Predictable and Better End User Experience • Predictable, uniformly fair throughput across all clients

  13. 11 1 6 WLANs Rely on Client to Make Decisions • There are 3 non-overlapping channels in 2.4GHz (Ch 1, 6, 11) 4 users15% bandwidth • Client selects AP based on luck and signal strength • The client doesn’t know which AP is truly the best selection 1 users2% bandwidth 24 users90% bandwidth

  14. 11 6 6 1 1 1 1 1 1 1 11 11 6 Co-Channel Interference and Sticky Clients • There are 3 channels(Ch 1, 6, 11) • Designed for 54Mbps • Signal reaches much further • Co-channel interference is inevitable 54Mbps 1Mbps • Client connects at 54 Mb • Client still connected at 1 Mb

  15. 1 1 1 1 1 1 1 1 Meru Solution: The Network Makes the Decisions Virtual Cell All Channel 1 1. Network in charge 2. Best choice AP 3. Zero time handoff 4. Full power APs 5. Simple deployment Controller

  16. Why Customers Choose Meru Over Legacy Solutions Switch-like: Better Performance and Scale • Predictable performance and fair access to clients • Improved performance in mixed 802.11b/g networks • Toll-quality Voice • Improved Mobility / Zero-Handoff Single Channel: Lower Costs of Deployment and Operations • Reduced need for site-survey, channel planning • Less APs to deliver same application performance • Lower operational complexity, leading to lower personnel cost Virtual Cell: Best Architecture for the Future - • Scaling capacity with 802.11 a/b/g • Migrating to 802.11n • Deploying greenfield 802.11n

  17. Better coverage Higher throughput Improved coverage through multipath and MIMO; multiple transmit and receive paths Over 6 times better than 802.11a/g * Longer range More reliable Longer range: Over 2 times better than 802.11a/g * More resistant to interference and loss due to multipath * Promise of 802.11n * Based on specifications in the standard.

  18. 2x2, 3x2, 2x3, 3x3, … • What does this mean? • Number of Chains = Number of Antennas used at any one time • NotNumber of Spatial Streams! • Number of Spatial Streams = 2 or less, always 3x_  _x3 3 Tx Antennas 3 Rx Antennas

  19. Standards Adoption: 802.11 b -> a/g - >n 2000 2004-7 2007…. 300 Mbps per cell

  20. DP DP DP DP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP 11n AP Architectural ConsiderationsFlexible 3-Tier Traffic Distribution System(3TDS) Meru Centralized Model Meru Distributed Model Controller DP’s Controller Options : Control Traffic : Data Traffic Access Point (AP) Distribution Point (DP) Controller

  21. Design Considerations Lack of Site Planning Tools Channel Planning Challenges Migration of infrastructure from .11a/g to .11n Two Different channel plans for 2.4 and 5 GHz using same AP chassis Increase in interference with Increase in range PoE 802.3af Simplifying deployment & operations Optimizing capacity and scalability Impact on wired switching infrastructure CH 1 CH 11 CH 6 CH 1 21

  22. Meru AP AP L2 / L3Backbone AP Meru Controller Meru WLAN ProductsSimple Deployment Architecture • Coordinated Access Point • Air Monitor + Access Point • Application Flow Classification • Contention management • Controller • Centralized appliance for coordination, management and security • Built-in application Flow-Detectors e.g. SIP, H.323, Spectralink SVP Floor 2 Floor 1 Virtual AP Data Center

  23. Nokia E61Dual-mode phone Hitachi-CableWIP-5000 Ascom PortableDevice Manager (PDM) Certified Voice Solutions Outside Enterprise Inside Enterprise Cellular Network AVAYA 3631 AVAYA 3620 Meru AP 201 PSTN T1 / PRI Channel 1 VirtualCell Ascom i75 Handsets AVAYA SES (SIP) Meru WLANController SIP PBX Meru AP 201 AVAYA S8300/G700Communication Manager Example Deployment Options:

  24. Bandwidth RS4000 AP200 family Meru AP Family Positioning High Client Bandwidth Data + Voice High Capacity Data + Voice Medium scale Data +Voice AP300 family AP150 AP150 family OAP180 outdoor Single Channel, Ease of Deployment

  25. Remote / Small Office Medium Enterprise Branch Office Large Enterprise MC5000 6U (5-slot) • Manages Access Points and Radio Switches • Simple configuration • WLAN security enforcement • Coordinates QoS policies and manages contention • Ensure seamless client mobility across subnets • Redundant configurations available MC3000 MC1000 MC500 200…………….1000 1-5 15 ………………………150 Number of Managed Access Points Controller Family Positioning

  26. Meru AirShieldTM Addresses Unique WLAN Security Requirements *201/208 only

  27. Centralized Management and Visualization Simplifies Operations and Improves Productivity E(z)RF Application Suite Visualize AP Coverage Locate Rogues Deploy Monitor Manage Monitor Performance Advanced Location Mapping Locate

  28. State University of New York, Morrisville First 802.11n campus wide deployment Profile • Located in rural upstate NY comprise of 30+ buildings • Offers more than 70 degree options to > 3200 students • Tech savvy, IBM ThinkPad University, campus-wide wireless initiative includes campus wide Nextel phone Challenge • Replace EOL’d legacy wireless network and plan for high density future usage • 100% mobile teaching and learning environment • Support secure, converged data, voice and video • High-performance, high density, everywhere Solution • 900 Meru AP300 access points with two a/b/g/n radios and MC5000 Controllers • 802.11i standard security Results • “Some of the statistics from tests were just unbelievable. In general, speeds were five times that of 11g.” - Jean Boland, vice president of technology services

  29. Summary: Customers Trust Meru to Deliver in the Most Challenging Deployments

  30. Thank You! Rob KloudaSales Director203-376-0710rklouda@merunetworks.com

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