wireless without compromise! flemming harvad technical director emea
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Wireless Without Compromise!
Flemming Harvad
Technical Director EMEA
2
Meru Networks Company Overview
> Founded in 2002, Sunnyvale, CA, USA • Operations in North America, APAC, EMEA
> NASDAQ Listed – “MERU”
> Mission: Deliver Wireless like Wire™ experience to the enterprise
• Virtualized Wireless LAN innovation
> 3,500+ customers in 44 countries worldwide
> Category Leadership• Enterprise 802.11n solutions pioneer• Wireless VoIP, Video/HD video• Converged applications at scale• Device and user density, seamless mobility, QOS• Fixed-Mobile convergence• Enterprise WLAN service assurance
> Deloitte - 2010 Technology Fast 500 Rankings• Meru Networks Ranked the nr. 25 overall and nr. 5 in
IT industry – Worldwide.
3
Our Vision:Powering the All-Wireless EnterpriseTM
Telecommuter
Branch Office
Headquarters
Remote Office
Home Office
Guest User
Email /Web
VoiceFMC
ElectronicHealth
Records
PatientTelemetry
InventoryMgmt
1:1Computing
VideoSurveillance
And IPTV
Wired Core
Ap
pli
cati
on
sA
pp
lica
tio
ns
Dev
ices
Dev
ices
Use
Cas
esU
se C
ases
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Historical Deployments Micro-Cell: Pretty much everyone’s deployment today
The future…. Meru
-Casual use network (conf rooms)
- Individually Managed
- Multiple Points of Security
+ Centrally Managed/Secured- Complex RF Planning
- Unstable RF by design
+ Industry leading TCO advantage+ Very simple deployment+ Switch-like experience
Ok for Network of Convenience Optimal for Wireless Edge
Lets look at how we got here and why…..?
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Pre-802.11
Access
Evolution of Wireless LANs
Fat Access Point
Standardization
Microcell
Centralization
* Gartner Classification
Virtualized
Traffic Optimized1990’s
1st Generation*
1990’s1st
Generation*
Virtualized
Traffic Optimized
20002nd Generation*
20002nd Generation*
20053rd
Generation*
20053rd
Generation*
Today4th
Generation*
Today4th
Generation*
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MeruMeru
Virtualized
Meru’s Virtualized WLAN Virtualize + Optimize the RFResources
LegacyLegacy
Microcell
Hub Switch
PoolingPooling
> Single channel APs are like light bulbs
> Transparent mobility Clients see no handoff
> Layered Channels Every MHz everywhere
PartitioningPartitioning
> Virtual Port Dedicated AP per device
> Airtime Fairness Network guarantees each device its fair share of the air
> Network Control
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2394
1202
384 383161 87
0
500
1000
1500
2000
2500
1 2 11 6 18 54
160+76 bytepayload
802.11 Technology Implications
RF Planning is Complex Clients are in Control
Slowest Client Dominates Uplink Chokes Downlink
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802.11n Technology ImplicationsUnpredictable Coverage Trade off Fairness & Efficiency
2.4bg/5n RF Plan Differences Operational Complexity11abgn
Tx Power
Power Save
Roaming
Antenna
Spatial Streams
Antenna Type
Channel Width
MIMO-PS
Aggregate Window
Aggregate Size
MCS Rates
Frequency Band 5GHz; Band Size 40MHz; 802.11n Clients
0.0
5.0
10.0
15.0
20.0
25.0
Client 1 Client 2 Client 3 Client 4 Client 5 Client 6 Client 7 Client 8 Client 9 Client10
Thro
ughp
ut in
Mbp
s
Meru Aruba Cisco
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
5MHz, Stdev/Mean
Aruba
Cisco
Meru
9
Tota
l Ban
dwid
th a
t P
eak
5
811
1
ContentionLoss
ContentionLoss
Other APPerformance
Meru AP Performance
Active Users Per AP
OtherWLANs
MeruNumber of Active Users
Peak Aggregate Throughput
No upstream client flow control creates contention in the network
Hub vs Switch – No fairness to anyone….
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• Client sees only one cell, no handoff
• Infrastructure maps client to best AP at any time
• Seamless mobility regardless of device, driver, chipset, settings
• Zero loss mobility for voice and video – only with Meru
Only Meru Provides Zero Handoff
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Deploying APs is like putting Light Bulbs
Micro-Cell• Channel Planning Mandatory• RF Unstable by Design• Needs hand tuning • Almost impossible to optimize 2.4 and 5GHz simultaneously
Virtual Cell/Single Channel• No Channel Planning Required• Network Invariant• No tuning required• Holes patched like light bulbs
12
Deep Flow Inspection based Automatic Provisioning
Application-AwareFlow Detection
Voice prioritized, rate limiting controls
Video prioritized, rate limiting controls, client and up/down fairness
Data best effort, elastic client and up/down fairness
Airtime FairnessOver-the-air QoS
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Optimum Video, Voice Delivery Virtual Port
- Per device sandbox: switch-like experience- Seamless mobility: applications without disruption
Voice prioritized, rate limiting controls
Video prioritized, rate limiting controls, client and up/down fairness
Data best effort, elastic client and up/down fairness
Air Traffic Control- Client/Class Airtime Fairness: predictable service- Uplink/Downlink Fairness: highest client density- Contention management: peak channel efficiency
Application-aware Packet Processing- Prioritization based on application- App-aware scheduling: voice and video in synch- App-marking based differential treatment: best user
experience under high load- Admission Control and load balancing
Multicast Group Management- Control broadcast suppression- Per-station group management- Multicast to unicast conversion: optimal for 11n
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Simplified Helpdesk Troubleshooting
1. Go to specific
Controller
2. Go to specific Station
3. Go to specific location
15
Rewind & Review Network State in Past
Slides back in time
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Meru Single Channel Architecture:Neighborhood Watch for Service Assurance
> Single Channel only
architecture for service assurance
• No service disruptionNo channel change
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Multi-channel Microcell: Neighborhood Watch Not Possible
xx
xx
x
x
> Microcell infrastructure cannot perform service assurance• AP can’t reach
neighbors; must change channels and disrupt service
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How can I see my network health?How can I see my network health?
Can I proactively detect problems before they impact the users?Can I proactively detect problems before they impact the users?
How good is my wireless network coverage?How good is my wireless network coverage?
Can I assess security health of my network?Can I assess security health of my network?
How can I troubleshoot client connectivity problems?How can I troubleshoot client connectivity problems?
How can I detect interference from microwave ovens, cordless phones?How can I detect interference from microwave ovens, cordless phones?
How can I provide compliance reports? How can I provide compliance reports?
Single Platform, Multiple Services
Network ManagerServices Assurance Manager
EzRF
Wireless Intrusion Prevention System
Visualization Manager Troubleshooting ManagerCompliance ManagerSpectrum Analyzer
EzRF Compliance Manager
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Comprehensive Product Suite
Central ManagementLocation ServicesSecurity ServicesService Assurance
Network
Small Office / Remote Location
Small Office / Remote Location
Branch Office
1-5 AP’s
Branch Office
1-5 AP’s
Distributed Enterprise
1,000+ AP’s
Distributed Enterprise
1,000+ AP’s
Regional Office
50-100 AP’s
Regional Office
50-100 AP’s
HQ / Central Campus Indoor / Outdoor
100-1,000 AP’s
HQ / Central Campus Indoor / Outdoor
100-1,000 AP’s
Meru System DirectorMeru System Director
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