Transcript Document

Wireless without CompromiseTM
For The New Enterprise Network
Al Rocco
Regional Sales Manager
[email protected]
201-227-1941
Meru Networks
Wireless Without CompromiseTM

Founded
2002

Offices
Headquarters in Sunnyvale, CA
with locations in Asia & Europe
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Status
Private
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Customers
1000+ marquee customers
across all major market
segments

Market
Position
4th Highest WW Market Share
in Enterprise WLAN
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Innovations
35+ patents and pending

Products
Meru Mobile SCALE WLAN
System, a complete wireless
solution for The Enterprise
Network
Broad Market Penetration
Sample Customers
Higher Ed & K-12
Healthcare
Enterprise
Industrial & Harsh Environments
Retail & Hospitality
Government
Education
The New Enterprise Network
Network of Convenience
The NEW Enterprise Network
Evolving Requirements
Business
WLAN Infrastructure
Support Business Critical applications
Guaranteed application delivery
Pervasive : access applications anywhere
Simple to deploy, operate and grow
Multi-layer Security
RF-level, Application, user-based security
Adapt to Future Applications
Grow gracefully with new applications, more
clients, more bandwidth
WLAN Requirements Are Changing:
Network of Convenience
Primary Connectivity
Stand-alone
Managed
Pervasive
Number of Clients &
Size of Coverage
Applications
• Email, Web
• Email, Web
• Voice and Data
• Business applications
• Primary Connectivity
Architecture
• Stand-alone AP
• Thin/dumb AP
• Central Controller
• Cellular: Coordinated AP
• Centralized control
Deployments
• Early adopters
• Conference Rooms
• Vertical Industries
• Guest Access
• Enterprise-wide
Backbone-centric problems
Air-centric problems
WLAN Compromises
Key Considerations
The Legacy Way
“Ethernet Hubs with Central Management”
Tradeoff between coverage and
co-channel interference
Channel planning, Planning Tools, Microcell (lower-power APs)
High density data performance suffers
Micro-cell to reduce number of
clients/AP
No over-the-air QoS and
co-ordination across APs
Separate voice and data on different
channels
Clients make the decisions based on
local knowledge
Assume smarter clients; proprietary
client extensions
Only 1 40Mhz channel in 2.4Ghz 11n
Don’t support 11n on 2.4Ghz
WLAN Architectural Comparison
The Legacy Way
The Right Way
“Cellular-like”:
Coordinated Cells
Ethernet Hubs
with Central
Management
Air Traffic Control™:
Key Technology Difference
Coordinated Virtual Cells
Channel Span
Simplify
Wireless View:
Channel spans,
One cell
Scale
Capacity
Per Area
Layered Channel Spans
For Increased Capacity
Optimize
Applications
Data
Voice
Application Aware Network
Air Traffic Control™ Technology:
Virtual Cell – Single Channel Spans
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APs act as a coordinated system
rather than each AP acting as an
individual wireless hub
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All APs on the same channel have the
same BSSID (wireless MAC address)
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X
100 ms –
3 seconds
between
handoff
Client only sees only one AP on a
channel
Benefits
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Legacy Microcell
Infrastructure controlled
o
Best AP assignment
o
Handoff
No handoff from Client Perspective
Load balancing between AP’s
Meru Virtual Cell
Air Traffic Control™ Technology:
Multi-channel Layering
Legacy WLAN channel plan
consumes RF resources
Meru’s channel spans
preserve RF resources
Ch. 11
Ch. 1
Ch. 6
Ch. 11
Ch. 6
Ch. 1
All RF 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 layering channel spans
Air Traffic Control™ Technology:
Application-Aware Optimization
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Manages upstream and
downstream application flows
like a switch:
over the air QoS
Airtime fairness: provides fair
and equal network access —
faster clients are not
penalized by slower clients
Enables high-density, mixed
802.11b/g client networks
Toll quality voice with high
density data
Client load balancing
Benefits for all Standard
clients
Data
Voice
Application Aware Network
I heard of Meru’s approach to client density and
improving 802.11g & 802.11b performance and
was intrigued to see if this would solve our
issues. The Meru system was deployed
throughout Jamrich Hall supporting 800 students
simultaneously.”
Dave Maki Dir. Of Technical Services
N. Michigan University
Real-World Benefits of Air Traffic Control
Throughput
15.9
1
11.26
1
802.11b
802.11g
4.68
Vendor C
Vendor C Meru
6.5%
802.11g
802.11b/g
Performance
Active Users Per
Access Point
100+
13%
11%
13%
6.5%
6.5%
13%
13%
6.5%
30.5%
Vendor C
13%
13%
802.11g
802.11g
802.11g
802.11g
802.11g
802.11g
802.11b
802.11b
-
1
2
3
4
5
6
1
2
Fair Client
Access
5X
Meru
20 calls, 10 clients
12 calls, 10 clients
Meru
Vendor
C(WMM)
MOS
802.11b
Meru
11%
6.5%
4
3.5
3
2.5
2
1.5
1
0.5
0
0.87
Airtime per Client
6.5%
30.5
User
Density
802.11 Differential Rate Fairness
4
3.5
3
2.5
2
1.5
1
0.5
0
20-25
Vendor C
Meru
Vendor
C(WMM)
MOS
Over the Air
QoS
Meru
Ease of Set-up and Use:
Single Channel Spans
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Ease of set-up and use
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No traditional channel surveys
No Access Point power
adjustments or spacing
limitations
No channel configuration
Plug and play out of the box
Extend the network without
re-planning
Meru is bucking the trend with unique
offerings that reject conventional
architectural and deployment models.
Meru’s single channel-channel
architecture makes deployment easier
while promising greater scalability,
enhanced roaming and coordinated
over-the-air quality of service.
Dave Molta, November 2006
Because the Meru Wireless LAN System allows all APs to reside on the same
channel, a site survey proved unnecessary, saving us valuable time and
reducing our costs.
Shawn Iverson, Network Administrator, New Castle School District
Zero Channel Planning, AP Power
Management
Expanding a
Legacy WLAN
6
1 11
1 11
6
11
6
11
6
6
1
6 11
1
1 11
1 11 6 11
1
6
11 6 1
11
Legacy WLAN
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Expanding a
Meru WLAN
1
1
1
1
1
1
1
1
1
Meru WLAN
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Single channel set-up eliminates interference so
full power can be used, larger areas covered so
fewer devices required
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Access Points can be changed or added to
increase capacity without a channel planning
survey
1
1
1
1
To minimize interference power levels are lower so
cell size is smaller– requires more Access Points,
cable drops, and labor
Recurring site surveys are required
Adds/moves/ changes require channel reassignment
Automatic assignment mechanisms don’t work in real
world applications and must be constantly tweaked
Significantly Lower Cost of
Deployment and Operations
Example Customer Case Study
 20-30% Less AP’s, Cable Pulls,
PoE Ports
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Eliminated expensive, sitesurvey/channel planning costs
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$500K savings for a
2000 AP Network
$10K x 30 buildings
= $300K savings in initial
deployment costs
Operate the network with less
personnel and OpEx
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1 person vs. 5 to manage
$500K annual recurring savings
“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.”
Chris Bogue
IT Director
University of Miami Medical Center
Graceful Bandwidth Growth and Migration
to 11n with Channel Layering
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Adding Capacity
with Increased
Application and
Bandwidth Needs
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Ch. 11
Ch. 6
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Add capacity with
layered channels
Up to 3x the capacity
with b/g
No upgrade of clients
to 11a, 11n
Ch. 1
Ch. 1
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11n - 5
11n – 2.4
Ch. 1
Add capacity in 11n
Can add in 2.4 or 5 GHz
802.11n: Inevitable March Toward
The All-Wireless Office
2000
2004-7
2007-8
Mbps per cell
Up to 600
Application
•
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Casual usage
Networks of
Convenience
•
Applications in mobile
workforce organizations
•
Healthcare, Edu, Retail,
Manufacturing
•
•
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Pervasive, businesscritical deployments
All applications over
wireless
All wireless offices
Promise of 802.11n
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 *
* Based on specifications in the standard.
Why you should consider deploying
802.11n (draft 2)
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Growing percentage of Clients/laptops have
built-in 11n. All Apple Laptops have 11n
Rogue detection of 11n, even if 11n is not
needed for service
Increased capacity for your mission critical
applications
All-wireless offices and associated cost and
productivity benefits
Key Considerations for 802.11n
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•
•
•
Simplifying deployment & operations
Optimizing capacity and scalability
Impact on wired switching infrastructure
Impact on wireless security
Meru’s Superior Architecture Offers the Best Solution
Simplest deployment & operations
Maximum capacity
Total investment protection for wired switch infrastructure
Implementation Consideration #1:
Simplifying Deployment & Operations
11n Technology Principles
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More spectrum
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Higher data rates
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40 Mhz Channels
(vs. 20Mhz in 11a/g)
Multiple antennas
(MIMO)
64QAM encoding
Higher efficiency
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MAC protocol
efficiency
Deployment Considerations
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Coverage at higher data
rates tougher to predict
Data rates fluctuate
more than 11g/a
More co-channel
interference
4x drop in mixed 11g/a
and 11n networks on
same channel
Typical Coverage Pattern for 802.11n
Rate/Range is Unpredictable
Deployment Considerations
Sample coverage from an installation
High
rate
Low
rate
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Coverage in 802.11n at higher data
rates is unpredictable due to multipath
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Higher co-channel interference;
coordinated APs to mitigate needed
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Predictive tools are not effective at
high rate; Lack of good planning tools
for 802.11n is a deterrent to deploying
using micro cell architecture
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The optimal approach for 802.11n is
one that minimizes the performance
penalty for sub-optimal AP placement
Meru’s Channel-Span Architecture Enables
Simplest Deployment and Operations
Meru Solution
Other WLANs
X
Office Floor
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Initial Current
planning and
optimization
Technology
difficult
Fixing coverage holes requires replanning and “domino effect” of
changing channel plans
Not possible to fix co-channel
interference issues in multi-floors
Office Floor
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No channel planning needed
Deploy APs based on rule-of-thumb
(e.g. 60 feet in office cubes)
Any coverage holes easily fixed
without re-planning
Packet-access-level coordinated AP
mitigates co-channel interference
Implementation Consideration #2
Optimizing Capacity and Scalability
36+1
44+1
52+1
60+1
100+1
108+1
116+1
124+1
Total of 11 40-MHz channels in 5-GHz
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Wide side lobes require spacing
between channels to avoid interference,
and reduced performance
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Effectively only 6 usable 40-MHz
channels in 5GHz spectrum
1
132+1
149+1
Channel
44 + 1 52
Channel
44 + 1
157+1
52+1
6, 11
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Only 1 40-MHz channel in 2.4-GHz
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Only Meru enables Gbps+ capacity
Chart from 802.11n specification
Deployment Consideration #3: Impact on
Wired Switched Ethernet Investment
Centralized Model
Controller
Meru Distributed Model: 3TDS™
DP’s
Controller
Options
DP
11n AP
11n AP
11n AP
11n AP
Access Point (AP)
Distribution Point (DP)
Control Point (CP)
11n AP
11n AP
11n AP
Blue: Control Traffic
Green: Data Traffic
DP
11n AP
11n AP
DP
11n AP
DP
11n AP
11n AP
Meru is the Only Option to Deliver 802.11n
Wireless Without Compromise™
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Single channel spans simplify deployments and
ensure predictable performance
Architecture exclusively enables enterprises to
use 2.4GHz for 802.11n
Scale to Gigabit or greater capacity with
layered channels
Protect wired switching investment with 3TDS™
MERU Solution for the Enterprise
Enterprise
Backbone
Central Management
Across Global Enterprise
Remote APs
Small remote office
Branch
Office
1-5 AP’s
Mid Sized Office
Office
100-150 APs
Central Campus
Indoor/outdoor
1000 APs
Distributed Campus
Indoor/Outdoor
1000+ APs
Summary: Customers Trust Meru to
Deliver Wireless Without Compromise
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Largest Deployment with No RF Planning
2.5 Million Square Feet
3000+ APs on a single channel
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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
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Highest user density production deployment
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Largest Enterprise FMC dual-mode phone deployment
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100+ active users/AP
Completely wireless teaching/testing environment
6000+ phones, 8000+ laptops; all-wireless 49 offices
First Campus-Wide 802.11n
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900+ APs in 30+ buildings
11n laptops
Make It Meru!