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Meru Networks Wireless Without Compromise

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Presentation on theme: "Meru Networks Wireless Without Compromise"— Presentation transcript:

1 Meru Networks Wireless Without Compromise
Ric Lukasiewicz, RSM Mountain States Brett Schavey, Sr Network Engineer

2 How do I design a reliable network for business critical application?
How do I choose a WLAN product that is simple to design, deploy and manage? How do I design a reliable network for business critical application? Wireless Without Compromise Security Scalability Capacity Reliability Economize How do I design a network that can handle demand variations? How do I choose an architecture that scales from 10 to 1000 AP? WLAN are being bought not because networking equipment purchase has been approved but because there are applications that require wireless network CIOs are not thinking about Wireless LAN or wired LAN, they are thinking and making technology investments that effectively can offset budget cuts. They often make compromises. Choose a proprietary security solutions but find that How do I keep “Good guys In and keep the bad guys out”?

3 What to look for? Simplicity Capacity Reliability
Strategies Cost of RF Channel Planning Required WLAN as easy to install and administer as wired Simplicity Uniform coverage provides consistent high-throughput experience No hand-offs during roaming Capacity Secure toll-quality voice, high definition video, switch-like data performance at large scale Reliability Meru’s Wi-Fi network architecture is organized, and internally operates, like a cellular network – but supporting standard Wi-Fi devices. Central intelligence controls deployment, security, network access, service fidelity, and mobility, using coordination across the Wi-Fi access points and central controllers, to deliver uniform experience to all Wi-Fi devices. With this architecture: Deployment is dramatically simplified – RF channel planning completely eliminated. Service is predictable, being centrally controlled – toll-grade voice, high fidelity video, and switch-like data performance. Always-on, secure connectivity – like wired – is enabled. We have incorporated lessons learned over more than a decade of cellular networking into an enterprise Wi-Fi network architecture that is capable of delivering large scale voice/data/video without requiring any change to the consumer-grade client. This is an architecture shift, not just a feature evolution. No Changes to Clients No client certifications, proprietary extensions or worrying about different device configurations Cost Repeating site surveys, through-put per number of Access Points, simple on-going Management and Monitoring

4 Testing Plans Central management and provisioning (*java,)
Available bandwidth…at what level of scale A, B, G and N – tested with more than 5-6 stations Consistent coverage all the time Eliminate RF contention Scale for voice, data and media support Never touch the AP’s Remote office AP’s Guest access Security – VPN,SSH, Sflow support Support applications (RDP, exchange)

5 Enterprise WLAN Generations Fourth Generation: Raising the “Bar”
Generation Definitions Based on Gartner WLAN Research Reports Early 2000 Mid 2000 Late 2000 First Generation Second Generation Third Generation Fourth Controller Controller Consumer Grade APs not suitable for Enterprise Network AP AP AP AP AP Autonomous Centralized Microcell Virtual Cell Infrastructure & RF Configuration Individual AP Association and Roaming Decisions Client Initiated; Client initiated; Controller Number of Clients 5-7 12-15 +30 Example Vendors Cisco, Proxim… Cisco, Aruba, Trapeze Meru

6 Simplicity in Design for 802.11b/g/a/n
Micro Cell Plan placement and RF planning Plan channels Plan Power level Post deployment verification Monitoring and Management RF load balancing (Domino Effect) Dedicated staff to monitor RF Add/move/change requires “going back to the drawing board” Plan AP Placement “COVERAGE” site survey Full power on AP ensures redundancy Add/move/change “a non-issue” 1 6 11 802.11b/g 36 40 44 56 60 64 48 52 802.11a 802.11n Micro Cell Virtual Cell Virtual Cell

7 Using Channels to Double the Capacity
Micro Cell WLAN Single Channel Per Region Virtual Cell WLAN Multiple Channel in Single Region Ch. 1 Ch. 11 Ch. 11 Ch. 11 Channel Span Ch. 6 Ch. 1 Ch. 1 Ch. 11 Ch. 6 Channel Span Ch. 1 Channel Span Meru’s single channel architecture enables better performance and a dramatic reduction in installation and IT management costs: Fewer AP’s, wired infrastructure and cable pulls Elimination of channel planning for site survey Operating and maintenance costs related to adds and changes Using all three non-overlapping channels at any location**, Meru’s 4th generation architecture achieves far higher system capacity than our competitors with far lower complexity: Channels can be stacked as needed to add capacity 802.11n ready without a forklift upgrade All channels are consumed to provide a single channel of capacity per region Multiple channels can be layered to add capacity per region Add capacity by redesign and more APs Add capacity by layering channel spans

8 802.11N

9 802.11n Coverage and High Data Rates Can Fluctuate
Illustrative 11a/g: Closer to Spherical 11n: Porcupine-like

10 Typical Coverage Pattern for 802.11n Rate/Range is Unpredictable
Deployment Considerations Sample coverage from an installation High rate Low rate Coverage in n is unpredictable due to MIMO techniques Higher co-channel interference; coordinated AP’s to mitigate needed Predictive tools will not work The optimal approach for n is one that minimizes the penalty for getting AP placements wrong Unlike current abg standards, n is the first WiFi standard to leverage antenna and baseband technologies to improve range. Specifically, n uses two key principles: A minimum of two transmit and receive chains are required in order to combine signal from quasi-independent transmitreceive paths to overcome interference, multipath, and noise. In fact, similar to CDMA(code division multiple access), n uses multipath to its advantage to improve data rates. A minimum n link configuration is a 2X2 (two transmit,+ two receive chains) and a 3X3 configuration is preferred. In the event of a link supporting 3 transmit chains and 2 receive chains, n uses an added concept called spatial OFDM(Orthogonal Frequency-Division Multiplexing) to further improve link budget. 802.11n optionally allows for directional beam-forming to allow transmitters and receivers to tune their transmit/receive paths to improve unicast communication. Clearly, in a single AP environment, n results in higher range for the same data rate, which is very helpful in home environments. However, in enterprise deployments, increased range comes with subtle architectural implications. While range is improved, predictable coverage plans are significantly harder to construct using predictive models, because range improvement leverages multipath, which is highly time and location sensitive, and even more than attenuation, is almost impossible to predict accurately using pre-populated maps. Solutions from vendors using micro-cell architectures, have built-in assumptions around eliminating co-channel interference using careful channel and power planning. There are no effective tools for coverage planning in the market today, and effective coverage and capacity planning is inherently more complex with n with vendors who make that assumption today. Since receivers are able to decode even weaker and distorted signals, co-channel interference is significantly enhanced with n. This means that though range increases, so does the interference region. This is not a significant problem for home environments that have a one or two APs, but in an enterprise with pervasive coverage, co-channel interference mitigation becomes central to any scalable solution. To summarize, n has two fundamental implications on enterprise deployment: Coverage is tougher to predict, and the optimal approach for n is one that minimizes the penalty for getting coverage maps wrong. Specifically, the micro-cell approach with astute channel planning and optimization of the coverage/capacity trade-off is too prone to error to optimize n. Therefore the optimal architecture for n is one that has zero penalty for coverage errors. Co-channel interference mitigation must be built into the system from ground up, using APs that coordinate rather than act in isolation. Even in abg networks, co-channel interference has been a big problem and the micro-cell architecture has been singularly unsuccessful in solving that problem. With increased and significantly more unpredictable co-channel interference, it is clear that the approach of designing away co-channel interference using planning tools will not work at all. Therefore the optimal n architecture is one that uses APs in a coordinated manner to handle co-channel interference mitigation at the packet access level rather than using APs as uncoordinated stand-alone wireless Ethernet hubs.

11 What is media saying about Meru Networks
Denver airport goes fast and free on Wi-Fi Denver International Airport switched its public Wi-Fi offering from paid to advertising-supported and saw Wi-Fi use grew tenfold within a week InfoWorld – December 10, 2007 Meru, Avaya deploy mother of all WLAN networks Telephony Online – November 28, 2007 The n wireless standard is ready. Are you? SearchNetworking – October 25, 2007 Wireless LANs vs. wired LANs Abandoning wired links proving not so crazy after all as n emerges. Network World – October 26, 2007 The all-wireless enterprise is here! Tests show it's possible to ditch Ethernet for desktop access TechWorld – October 22, 2007 802.11n wireless LAN tests show 'unbelievable' results at state college n generally seen as five times as fast as 11g, Morrisville IT staff finds Network World – August 6, 2007

12 Client: Denver International Airport
Profile Fifth busiest USA Airport, #4 for just domestic flights. Challenge End-user WiFi device speed is not control-able. Build next generation of AT&T-Cisco network Transition to “revenue-based” free WiFi Secured separation of travelers, airlines, concessionaires, etc. 100% mobile teaching and learning environment Support data, voice and video Centralized configuration and control Solution Meru A, B, G, and N support for & 300MB users Meru AP320 dual-N Access Points and High-Availability Controller configuration. Application fairness - over-the air QoS for voice, video & Data Centralized configuration and management

13 Meru Provides Best of Both Worlds - Robust Architectures and Lowest TCO
Pre-Deployment Infrastructure Post-Deployment Eliminated Expensive, Site-Survey and Channel Planning ($5-10K per buildings) Requires 20-30% Less Access Points: Saving Cable Pulls, PoE Ports Costs Lower OpEx: Operate and Manage WLAN with 1 vs. 5 personnel “Once we had the cabling infrastructure in place for the access points in each facility, we could just look at a floor plan to install the Meru APs. We didn’t have to pay experts to do RF planning or site surveys.” IT Director, University Medical Center = $300K pre-deployment savings = $500K savings for a 2000 AP Network = $400K annual recurring savings

14 Summary: Customers Trust Meru to Deliver Wireless Without Compromise
Largest Deployment with No RF Planning 3+ Million Square Feet 3000+ APs on a single channel World’s Largest Enterprise WLAN Deployment 30,000 radios; 250,000 students Innovative, all-wireless teaching environment at Microsoft School of the Future with 600 Mbps of wireless capacity at every location Highest user density production deployment 100+ active users/AP Completely wireless teaching/testing environment Largest Enterprise FMC dual-mode phone deployment 6000+ phones, laptops; all-wireless 49 offices First Campus-Wide n 700+ APs in 30+ buildings 11n laptops

15 Kris Kline Principal Architect - Converged Networking
© 2008 Avaya Inc. All rights reserved. 15

16 Avaya “Next Generation WLAN” Overview
Replacing various globally deployed Avaya/Lucent vintage .11B WLAN equipment Using Meru AP208 A/B/G radios at all locations Meru WLAN Selected – Ease of Deployment – Single Channel Voice Prioritization Capability Fast Handoff While Roaming Ability to Develop Avaya Features West US – Westminster, CO East US – Lincroft, NJ APAC – Singapore EMEA – Frankfurt

17 Avaya SSID Architecture
employee WPA2 Enterprise Data (PC) traffic guest Open with Captive Portal Non-employee Internet Access GRE Tunnel to DMZ* fmc Voice (Handheld) traffic – Separate Voice VLAN Primarily used by Dual-Mode Nokia, Samsung 3631, and PDAs Special SSIDs – As Needed Product Testing Limited Distribution Networks Require Firewall Rules on Controller* Currently – 67 Sites Globally – 70 Controllers with 1000 APs across 26 Countries 7 Remote AP sites End State – 120 Sites Globally – 80 Controllers with 1200 APs across 32 Countries 40 Remote AP sites

18 THANK YOU! “…we could just look at a floor plan to install the Meru APs.” We didn’t have to pay experts to do RF planning or site surveys.” IT Director, University of Miami Medical Center “When we realized that we wouldn't be able to move forward and meet our goals of providing campus-wide pervasive wireless with the existing WLAN, we turned to Meru. Director, Network and Communications Villanova University With Meru’s WLAN System, we were able to eliminate many of the management issues associated with supporting a mission-critical wireless LAN infrastructure.” IS Group Manager McKee Foods We estimate the system to save us $2 million dollars in just its first year Manager of IT and Telecom St. John’s Hospital

19 Wireless Without Compromise
Meru Networks Wireless Without Compromise

20 Broad Market Penetration Sample Customers
Higher Ed & K-12 Healthcare Enterprise Industrial & Retail Government Education

21 The Unwired Enterprise: Osaka Gas Company, Japan
HQ + 50 offices, 6000 employees 6000 WLAN/FOMA dual mode phones; 8000 data devices All desks completely unwired Wiring only in selected areas: conference rooms, disaster recovery First of its kind in the world at this scale Very public trial/bakeoff in Japan in Q1/Q2 2005, all major WLAN vendors participated

22 Philadelphia School District School of The Future
Profile Top 10 national K-12 school district with 273 schools and > 217,000 students Challenge Establish a next generation “School of The Future” 100% mobile teaching and learning environment Support secure, converged data, voice and video High-performance, high density, everywhere Centralized configuration and control Solution Meru RS4000 Radio Switch and MC3000 Controllers Maximum bandwidth and highest density Application fairness - over-the air QoS Centralized configuration and management

23 Meru Networks Solution Ecosystem
Infrastructure Clients & Applications Security

24 Avaya Wireless Overview
Kris Kline Principal Architect - Converged Networking

25 Avaya “Next Generation WLAN” Overview
Replacing various globally deployed Avaya/Lucent vintage .11B WLAN equipment Using Meru AP208 A/B/G radios at all locations Meru WLAN Selected – Ease of Deployment – Single Channel Voice Prioritization Capability Fast Handoff While Roaming Ability to Develop Avaya Features West US – Westminster, CO East US – Lincroft, NJ APAC – Singapore EMEA – Frankfurt

26 Avaya SSID Architecture
employee WPA2 Enterprise Data (PC) traffic guest Open with Captive Portal Non-employee Internet Access GRE Tunnel to DMZ* fmc Voice (Handheld) traffic – Separate Voice VLAN Primarily used by Dual-Mode Nokia, Samsung 3631, and PDAs Special SSIDs – As Needed Product Testing Limited Distribution Networks Require Firewall Rules on Controller* Currently – 67 Sites Globally – 70 Controllers with 1000 APs across 26 Countries 7 Remote AP sites End State – 120 Sites Globally – 80 Controllers with 1200 APs across 32 Countries 40 Remote AP sites

27 © 2008 Avaya Inc. All rights reserved.
27

28 BACKUP SLIDES

29 WLAN for Mission Critical Business Applications
Selected market verticals Meru’s Solutions Enable Unified network for voice, video and data applications Enterprise Patient care, data safety and medical error reduction Healthcare Cost-effective scalability and ease of use in a dense user environment Education Just in time product delivery from the loading dock to the point of sale Retail Supply chain management, inventory control, process monitoring and product flow Manufacturing Service differentiation through state-of-the-art wireless Hospitality 18

30 Global Enterprises, Central Management
Meru Offers End to End WLAN Portfolio Enterprise Wide WLAN Global Enterprises, Central Management Remote APs Small remote office Branch Office / Stores 1-5 AP’s Mid Sized Office Distribution Centers Large Stores APs Central Campus Indoor/outdoor 1000 APs Distributed Campus Indoor/Outdoor 1000+ APs

31 University of Miami Medical Center
Profile Academic medical center in South Florida serving over 770 faculty, physicians and a total of 6,000 employees Challenge Provide high-performance mobility services to its clinical, research and educational staff, medical students and visitors Solution Meru’s WLAN System consisting of APs and Controllers eliminates co-channel interference & complex RF planning Meru’s over-the-air Quality of Service ensures high quality data service in high-density environments Meru’s Air Traffic Control technology eliminates handoff delays and creates seamless access RF Planning Savings exceeded $500K

32 What are some Industry Watchers saying about Meru Networks
“Fourth-generation WLAN deployments will be most effective in using the various modes of n…” ABI Research Report Cites Meru Networks Technology as Best Architecture for “Voice over Wi-Fi”. Sustainable Differentiation “The Meru System delivered twice the system throughput of micro cell… AP coordination is a significant benefit....the scale test was an eye opener for me. I was surprised to see how easily we could drive these (microcell) systems to unstable behavior.” – Phil Belanger, Novarum “Meru's virtual cell architecture gives it a significant advantage because, with all access points operating on a single channel, no handoffs are required. This eliminates the problem of latency, or delay, typically associated with roaming.”


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