Weitere ähnliche Inhalte Ähnlich wie Design and Deployment of Outdoor Mesh Wireless Networks (20) Mehr von Cisco Mobility (9) Kürzlich hochgeladen (20) Design and Deployment of Outdoor Mesh Wireless Networks1. Design and Deployment
of Outdoor Mesh
Wireless Networks
BRKEWN-2027
Navdeep Johar
Technical Marketing-Wireless Networking Business Unit
July 12, 2011
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2. Agenda
Outdoor Wireless Opportunity
Cisco Outdoor Wireless Architecture
Cisco Outdoor Wireless Portfolio
Applications & Deployment Examples
Q&A
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3. Associated Sessions and
Recommended Readings
Associated Sessions
BRKEWN-2011 Managing an Enterprise WLAN with
Wireless Control System (WCS)
BRKEWN-3013 Wireless LAN Radio Spectrum
Management Best Practices
Prerequisites
BRKEWN-2010 Design and Deployment of Enterprise
WLANs
BRKEWM-3016 Understanding RF Fundamentals
and the Radio Design of Wireless Networks
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5. What is Outdoor Wireless all about?
End user devices Broadband Tech
WiFi, HSPA, HiperLan
MaNet, LTE…
What is
outdoor
Mobility wireless? Applications
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6. Small Cells Increase Existing Capacity
Macro
Hierarchical Networks are the best solutions
Spectrum Allocation is not increasing significantly
Small Cells are the only answers to exponential
growth in Data Traffic
Consumer 26x
Business Community
Growth
Macro
1000 Capacity
Average
Macro Cell
Growth
100
Efficiency
10
Spectrum
1
1990 1995 2000 2005 2010 2015
Future networks supporting the mobile Internet will need to seamlessly integrate a lot more smaller cells
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7. Service Provider Wi-Fi Levels of Adoption
Wi-Fi
Value
to the SP
Reduce Local Low WebAuth 3G-like ARPU
Churn Cost WiFi Side Business Experience
Vendors (EAP-SIM)
3G Offload
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8. Cisco WiFi and WiFi Mesh is ready for Outdoors
Cost effective Standard
No licenses CPE and client devices
Large ecosystem of suppliers interoperability
Availability of client devices Attention from the industry
(ex. Security)
Zero on-going
communication costs Multipurpose network
Why WiFi
Outdoors? Scalability & Ease of use
Bandwidth Efficient
Large unlicensed spectrum Just keep on adding nodes
(> 300 MHz) Low impact for new sites
Can deliver throughput where Outdoor extension of the
you want it indoor Wireless LAN
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10. Cisco Outdoor Wireless
Bridging
L3/L2 switch
5GHz/2.4 GHz L2 switch
Point To Point
L2 switch
Internet
Point To Multipoint
Bridging: basic LAN to LAN wireless connectivity
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11. Cisco Outdoor Wireless
From Bridging to Mesh
2.4 GHz Access
L3/L2 switch MAP
RAP (Mesh AP)
(Root AP)
Backhaul 5/2.4 GHz
L2 switch
Controller 5 GHz Access
Backhaul 5GHz
MAP WGB
Wired access
5 GHz Access
Mesh Deployment Flexibility:
LAN-to-LAN connectivity
Multiple hop backhaul
2.4 GHz and 5GHz wireless client access
Ethernet Access to wired clients
LAN-to-LAN in motion with Work Group Bridge (WGB)
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12. Cisco Unified Wireless Network
Architecture Overview
Centralized WLAN
architecture
Mobility Services 802.11n and 802.11a/g
WCS Navigator
Engine (MSE)
Advanced mobility
Highly scalable
services such as
Real-time RF visibility
seamless, L3 roaming for
and control
Network Control System metro-scale deployments
(NCS) or Wireless Monitor and migrate
Control System (WCS) Wireless LAN Context Aware Simplified policy
standalone access
Controller(WLC) points
implementation and
Easily configure
reduced maintenance
CAPWAP
Seamless Roaming
– WLAN controllers
WIDS Essentials/aWIPS
Planning Tools using SNMP
between Indoors &
– Access points
802.11n Outdoors
using CAPWAP
Full Interoperability
Built-in support for
Bridging
Mobility Services
among all Mesh platforms
Clean Air / Spectrum Outdoor Mesh
– Context–Aware
Intelligence Standalone/Lightweight Highly Scalable Network
Services (Location)
Access Points
Multilevel Security
– Adaptive Wireless
Intrusion Prevention
Client Devices Protects network from
System (wIPS)
and Wi-Fi Tags
malicious activity and
Wired and wireless
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guest access
unauthorized access 12
13. Wireless Controller Product Portfolio
APs: Up to 500
Clients: Up to 10,000
I/O: Cat6K Backplane
Performance & Features
Wireless Services
APs: Up to 500 Module 2
Clients: Up to 7,000
I/O: Up to 8–1Gig. SFP
Cisco 5500 Series
Wireless Controller
APs: Up to 50 Mobility Domain Size:
Clients: Up to 500 36000 APs
I/O: Up to 4Gig (2PoE).
Cisco 2500 Series
Wireless Controller
APs: Up to 50 RAPs/MAPs counted as one AP
Clients: Up to 500 Mesh not supported on Flex 7500
I/O: ISR G2 Backplane
Wireless LAN Controller
on Services Ready
Engine
500 1k 1.5k 2k 2.5k 3k 3.5k 4k 4.5k 5k 5.5k 6k 6.5k 7k 7.5k 8k 8.5k 9k 9.5k 10k
# of Clients Supported (Scale)
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14. Cisco Wireless Mesh
Intelligent Wireless Solution
Deployment Flexibility
Different types of traffic
Self-configuring, self-healing Mesh
Zero-touch configuration
Cisco’s Adaptive Wireless Path (AWPP)
Protocol for fault-tolerant Mesh deployments
Scalability at different Layers
Network grows based on needed coverage
Provides seamless user mobility
Robust embedded Security
Controller
Integrated Wireless Management
NCS: Converged Access Management for
wired and wireless Networks
WCS: one console for operational visibility,
control, troubleshooting, and reporting
Deployment time reduced by 50%
Operational management reduced by 60%
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15. Cisco Wireless Mesh
MAP
Deployment Flexibility
Ethernet in
mesh header
WLAN
RAP
Controller
Intranet
MAPs dynamically
CAPWAP in build a tree with
mesh header the best path to
Mesh carries two types of traffic:
the RAP
Wired client traffic Mesh header
Wireless client traffic CAPWAP traffic
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16. Cisco Wireless Mesh
Self-configuring, Self-healing Mesh
Optimal parent selection selects Neighbor
RAP Controller
the path “ease” across each Parent
available backhaul
MAP
Ease based on number of hops
and link SNR (Signal Noise Ratio)
AWPP uses a “Parent Stickiness”
value to mitigate Route Flaps
AWPP integrates 802.11h DFS
(Dynamic Frequency Selection)
for radar detection and avoidance
Adaptive Wireless Path Protocol (AWPP)
establishes the best path to the Root
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17. Cisco Wireless Mesh
Scalability at different layers
Management
Access Point
NCS manages up to 15000 APs &
32 MAPs per RAP (recommended) 1250 WLCs
8 Hops (4 recommended) WCS manages up to 3000 APs &
16 MBSSIDs per AP (512 at WLC) 750 WLCs
More RAPs for sector capacity
Intranet
Controller
Up to 72 Controllers can be
part of an N+1 or N+N+1 cluster
Dynamic RF optimization on
access link for additional radios
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18. Cisco Wireless Mesh
Seamless user mobility Inter-controller L3 Roaming
Intra-controller Roaming
AP-10
AA-AA
WLC-A
VLAN =2
Tunnel EoIP
B to A
AP-22
WiSM
WLC-B
AP-47
MAC SSID AP WLAN WLC VLAN IP
AA-AA OpenWiFi 22
47
10 2 A
B-A 2 10.10.10.2
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19. Cisco 1500 Series Wireless Broadband Platform
Models:
1552(802.11N)
1522 MRC
Modular Radio Design Maximal Ratio Combining
Multiple radios 1524PS access radio improves
Multiple Uplinks receiver sensitivity for
1524SB clients by up to 4.7 dB
FIPS-ready
Fiber SFP Option 140-2 Certifiable
Connection to available
municipal fiber provides Hazardous
greater network throughput Location-ready
Rugged, Industrial
Internal Battery Aux/Console Enclosure
LEDs
Backup Option Cable -40 C to + 55 C with Solar
Run time up to 3 Hrs Loading
Flexibility to turn off DC Input IP67, NEMA - 4X
Power over
Ethernet Port
Provides powers and Ethernet PoE Out PoE In Fiber AC Input Integrated
connectivity for 802.3af DOCSIS 3.0 Cable
cameras, sensors, and other Paintable Enclosure
compliant devices Modem Option
Can be painted to match
surrounding structures
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20. Cisco Aironet 1500 Series Mesh Outdoor Access Points
AP1522 Cable/Fiber AP1552Cable/Ethernet (802.11n)
Docsis 2.0 Docsis /Euro-Docsis3.0
Cable Modem
2.4 4.9 to
5.8
Client Access
Backhaul &
Client Access Client Access Backhaul &
Client Access
AP1524 PS (Public Safety) AP1524SB (Serial Backhaul)
AP1552E/H (802.11n)
Backhaul Backhaul &
Client Access
5.8
2.4 4.9 5.0
2.4 5.0
Client Access
Client Access Backhaul &
Client Access
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21. 1550 Series Development Highlights 1552E/H
1552: Dual-Band (2.4 & 5 GHz), 4 Models
5 GHz includes only Upper ISM Bands (5.725 – 5.850 GHz)
40 MHz BW channel support, Data rates < = 300
Mbps
DOCSIS 3.0 (8x4)/ (304 x108) Mbps or EuroDOCSIS
3.0 (4x4) / (152 x 108) Mbps Cable Modem
MIMO (2X3), 2 SS (Spatial Streams)
Dual band, omni-directional antennas
• 3 Stick antennas, 4 dBi (2.4 GHz), 7 dBi (5 GHz) 1552I/C
• 3 element array, Low Profile, Single Radom, 2 dBi
(2.4 GHz), 4 dBi (5 GHz)
CleanAir 2.4 GHz Spectrum Intelligence
13.5 cm
ClientLink Legacy Beam Forming
Universal Access for 5GHz clients
Strand slope
DFS capability to detect 0.5us pulses adjustment
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22. Cisco Aironet 802.11n 1550 Series
1552 E 1552 C
External Antennas Integrated DOCSIS 3.0
Uplinks – Fiber/Ethernet (8x4) /EURODOCSIS (4x4)
Battery Backup (6AH) CM
AC Powered (100 – 480 VAC) Uplinks – Cable
No Cable Modem No Battery Backup
PoEout port (802.3af) Power over Cable (40 -90VAC)
Power Injector option No PoE out
Dual Band Stick Antennas No SFP
Console Port
Built-in Dual Band Antenna
AC Power Connector
PoEout Port
Fiber Port PoEin Port
1552 H
Class 1, Div 2/Zone 2 1552 I
hazardous location certified Lightweight, Low power &
External Antennas energy efficient
Uplinks – Fiber/Ethernet Uplinks – Ethernet
Battery Backup (6AH) No Battery Backup
All models can be AC Powered (100 -277VAC)
AC Powered (100-240VAC) powered using 12 VDC
Power Injector option No PoE out
No Cable Modem No SFP
PoEout port (802.3af) Built-in Dual Band
Antenna
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23. Cisco 1552H Hazardous Locations
Certification
Div 1 > Div 2 (North America) ; Zone 1 > Zone 2 (Europe)
Class 1, Division 2/Zone 2 is for Occasional
Environments like oil sand open pit mining.
Class 1, Division 1/Zone 1 is for Environments with full
time ignitable concentrations of flammable gases,
vapors or liquids
CSA Hazardous Location certification for US and
Canada: Class I, Division 2 (AIR-LAP1552-HZ-A/N-K9).
Power Entry Module, Groups A,B,C,D with T5 (120 deg
C) temp code
ATEX certification for worldwide deployment:
Class I, Zone 2 (AIR-LAP1552-HZ-E-K9). Power Entry
Module, Groups IIC, IIB, IIA with T5 (120 deg C) temp
code
For Class I, Zone 1/Division 1 requirements:
use TerraWave explosive proof enclosures
Certified with Antennas
Haz Loc Module
Conduit Piping
Terminal Block
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24. Pole/Wall/ Strand Mount
Standard pole mount bracket can also be wall mounted
Pole/Wall Mount
AIR-BAND-INST-TL= AP1552I
Pole Diameter Range AIR-ACCPMK1550=
supported from 2” to 16 “
2 Steel Straps
Band-it system
Pole Clamp Strand Mount
M8 stud and threaded holes AP1552C
Pole/Wall Mount
AIR-ACCSMK1550 $0
AP1552 E/H (same as AP1522) AIR-ACCSMK1550= (Spare Kit)
AIR-ACCPMK1550=
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25. Cisco Aironet Indoor Mesh Access Points
11abg 11n 11n + CleanAir
1252 3500e
Ruggedized
1242
1262
1132 1140 1040 3500i
Carpeted
No Extra License for Mesh Comprehensive suite of
WiFi certified products
APs orderable directly in Mesh Mode
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26. Hardware Platforms - Bridging
AP1410 AP1310
Exalt r5005
5.8 GHz bridge and AP 2.4GHz bridge and AP
5 GHz P2P
AP 1242 (with 3rd AP 1252/1262/3500e
party enclosure) (with 3rd party
enclosure)
AP1500 series
Mesh AP
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27. Exalt r5005: key features
High throughput: Hardware-based Configurable,
162 Mbps (40 128-bit AES constant Ethernet
MHz channel) latency: 0.5-5ms
Throughput
Captive 23 dBi symmetry control
antenna up to 80:20
Layer 2 switch, 3 High density
ports (1 PoE) collocation:
ExtendAir r5005 ExaltSync™
Ethernet rate Built-in Spectrum
limiting Cisco Solution Analyzer
Plus
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28. Exalt r5005: key differentiation
100 Mbps Interference Test
120
100
Throughput (Mbps)
Layer 2 Measured
80
60
ExtendAir
40
802.11n*
Competitor
20
0 10 13 14 15 17 20 22 23 30
Interference (dB)
Very Reliable P2P technology
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29. Cisco 1310/1410 and ExtendAir r5005
At-a-Glance Feature Comparison
ExtendAir r5005 1410 1310
Frequency 5 GHz 5 GHz 2.4 GHz
Technology Single carrier 802.11a 802.11g
microwave not Wi-Fi®
Throughput (L2) 162 Mbps ~28 Mbps ~28 Mbps
Channel BW 8 [10]*, 16 [20], 32 [40] 20 MHz 20 MHz
Ethernet Ports 1xFE (PoE) + 2xFE 1xFE (PoE) 1xFE (PoE)
VLAN / QoS Yes / Yes Yes / Yes Yes / Yes
Rate Limiting Yes N/A N/A
Symmetry Control Yes No No
128-bit AES Yes No Yes
Spectrum Analyzer Yes No No
LOS requirement LOS only LOS / NLOS LOS / NLOS
possible but not possible but not
recommended recommended
Applications PTP only PTP or PTMP PTP or PTMP
List Price per End $5,195 $4,999 $1,299
* [ ] indicates ETSI/ITU channel bandwidth
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30. Typical Backhaul Throughput and Latency
Avg 2-3 msec
latency per hops
HOPS RAP One Two Three Four
MAX Throughput
112 Mbps 83 Mbps 41 Mbps 25 Mbps* 15 Mbps*
(20MHz BH)
MAX Throughput
206 Mbps 111 Mbps 94 Mbps 49 Mbps 35 Mbps*
(40MHz BH)
Latency
< 10 ms per Hop, 0.3-1 milliseconds typical
Hops
Outdoor: code supports 8 Hops; 3–4 Hops are recommended
Nodes
20 MAPs per RAP are recommended
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32. Aspects of 802.11n
Packet Backward
MIMO 40MHz Channels
Aggregation Compatibility
MIMO (Multiple Input, Multiple Output)
With Beam Forming
Transmissions Arrive in Phase,
Increasing Signal Strength
Without Beam Forming
Transmissions Arrive out of
Phase and signal is weaker
Performed by Ensures Signal Increases Works with
Transmitter Received in Receive non-MIMO
(Talk Better) Phase Sensitivity Clients
Beam Forming Maximal Ratio Combining Spatial Multiplexing
Beam Forming gives a gain of 4 dB in DL only for Legacy Data Rates
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33. ClientLink (Beam Forming) Essential Facts
Beam Forming is effective in downstream only
Measureable advantages:
Increased SNR at cell edges
Provides
Increased downstream data rates at cell edges
Provides
Increased downstream throughput at cell edges
Beam Forming is based on AP3500 based product
Beam Forming only applicable to legacy rates of 9, 12,
18, 24, 36, 48 and 54 Mbps
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34. Aspects of 802.11n
Packet Backward
40MHz Channels
Aggregation Compatibility
MIMO (Multiple Input, Multiple Output)
Without MRC With MRC
Multiple Signals Sent; Multiple Signals Sent and Combined
One Signal Chosen at the Receiver Increasing Fidelity
MIMO AP
Performance
Performed by Combines Increases Works with
Receiver Multiple Received Receive non-MIMO and
(Hear Better) Signals Sensitivity MIMO Clients
Beam Forming Maximal Ratio Combining Spatial Multiplexing
MRC gives a gain of 4.7 dB in UL for all Data Rates
MRC Gain is added in Rx Sensitivity number
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35. MRC available for 802.11a/g/n
Combined Effect (Adding all Rx Paths)
3 Antennas Rx Signals
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36. Software features For Your Reference
(Software Rel. 6.0 onwards)
Dynamic backhaul data rate
Each Link uses Best Possible Rate as per its link quality
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37. Software features For Your Reference
(Software Rel. 7.0 onwards)
Backhaul client access
AP with two 5 GHz Radios
AP1524SB
Extended Client Access can be
unchecked independently from GUI
(Cisco Controller)> config mesh client-access enable
Warning Messages (Cisco Controller)> config mesh client-access enable
extended
UA/EUA can be configured from
WCS
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38. Software features For Your Reference
(Software Rel. 7.0 onwards)
Backhaul channel deselect
Feature helps end user to regulate/restrict set of channels that get
assigned to Linear chain automatically. The set is chosen from the
DCA list
Best suited for avoiding known source of interferences or for outdoor
mesh interoperability with indoor mesh or work group bridges
(WGBs).
100 RAP MAP
104
108
DCA 112
list 116
Ch 100 Ch 108
132
136
140
Radar affecting ch 136, 140 These channels will NOT be assigned
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39. Software features For Your Reference
(Software Rel. 7.0 onwards)
Backhaul channel deselect
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40. Software features For Your Reference
(Software Rel. 7.0 onwards)
Backhaul channel deselect
Choose the list of channels that
the mesh network will use
(Controller) >show advanced 802.11a channel
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41. Software features For Your Reference
(Software Rel. 7.0 onwards)
Backhaul channel deselect
Warning Message
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42. Software features
Backhaul channel deselect: when useful?
Better Frequency Planning can be done on two adjacent
linear spurs to reduce co-channel interference
RAP 1 Hop 2 Hop 3 Hop RAP 1 Hop 2 Hop
Universal
access
LRF (Link Role Flexibility)
WGB on 5 GHz
AP on 2.4 GHz
Station 1 Station 2
RAP 1 Hop 2 Hop 3 Hop RAP 1 Hop 2 Hop
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43. Software features
Mobile Access for Vehicles
Both 5Ghz radios are
equipped with a Directional
Cellular
antenna to optimize the
coverage of the rail
CH 149
RAP 2
802.11 CH 149
Hotspots
CH 161
RAP 1
Work Group Bridge (WGB) CH 161
CH 153
CH 157
RAP
CH 153 CH 149
Cisco Router AP1524 SB
in Vehicle
RAP CH 161
CH 161
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44. Software features For Your Reference
(Software Rel. 7.0.116 onwards)
Preferred Parent Selection
Preferred Parent (P.P) can be configured on an AP
P. P will be selected for the following conditions:
P.P parent is the best parent
P.P link SNR is at least 20dB (In this case, other parents,
however good, are ignored)
P.P has link SNR between 12 and 20 dB, but no other
parent is significantly better (SNR more than 20% better).
For lower than 12dB SNR, P.P configuration is ignored
P.P is not blacklisted
P.P is not in silent mode due to DFS.
P.P is in the same Bridge Group Name (BGN). If no other
parent available in the same BGN, the child will join the P.P
using the default BGN
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45. Software features
Preferred Parent Selection
(Cisco Controller 1) >config mesh parent preferred <AP Name> <MAC addr>
(Cisco Controller 1) >config mesh parent preferred MAP1SB ? Child Parent
<MAC addr> radio mac of the preferred parent
none clear configured parent
(Cisco Controller 1) >config mesh parent preferred MAP1SB 00:24:13:0f:92:00
(Cisco Controller 1) >show ap config general <AP Name>
(Cisco Controller 1) >show ap config general MAP1SB
Cisco AP Identifier.............................. 40
Cisco AP Name.................................... MAP1SB
Country code..................................... US - United States
Regulatory Domain allowed by Country............. 802.11bg:-A 802.11a:-
A, ou
tdoor mesh -AB
AP Country code.................................. US - United States
AP Regulatory Domain............................. 802.11bg:-A 802.11a:-A
Switch Port Number .............................. 1
MAC Address...................................... 00:24:50:34:21:00
IP Address Configuration......................... DHCP
IP Address....................................... 10.51.1.175
IP NetMask....................................... 255.255.255.0
Ethernet Port Duplex............................. Auto
Ethernet Port Speed.............................. Auto
AP Link Latency.................................. Disabled
Rogue Detection.................................. Enabled
AP TCP MSS Adjust................................ Disabled
Mesh preferred parent............................ 00:24:13:0f:92:00
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47. What is CleanAir Technology?
Locate Mitigate
WCS, MSE Wireless LAN Controller
POOR GOOD
•Classification processed
Classification processed
on Access Point
on Access Point
Maintain Air Quality
•Interference impact and
Interference impact and
data sent to WLC for real-
data sent to WLC for real-
time action
time action
•WCS and MSE store data
WCS and MSE store data
for location, history, and
for location, history, and
troubleshooting
troubleshooting Visualize and CH CH 11
1
Troubleshoot
AIR QUALITY PERFORMANCE
Cisco
CleanAir
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48. Network Visibility
Context Aware Services enable WCS to show Interferer’s location
Map – Air Quality View
Interferer Details
Zone of Impact
Mesh APs
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49. Self Healing and Optimization
Interference
Aware
RRM
Maximizes performance by avoiding interference
Event
Driven
RRM CH 1 CH 1 CH 11 CH 1
Self Healing to avoid Wi-Fi degradation
Persistent
Device
Avoidance
Self Learning to increase reliability
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50. Clean Air for Mesh For Your Reference
(Software Rel. 7.0.116.0 onwards)
Clean Air on 2.4 GHz for AP1552 & AP3500 in Bridge (Mesh)
mode
Interferers detected by Clean Air on 2.4 GHz include
AP1552 offers Clean Air in Bridge (Mesh) Mode
-there is no other mode available
No Clean Air on 5 GHz (Backhaul)
No Monitor Mode
No Spectrum Connect Mode
(SE-ConnectAP)
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51. CleanAir Recommendations for Outdoors
AP Density recommendation for CleanAir remains the same
as normal Mesh AP Deployment (800/1000 feet cell radius)
APs should be RF neighbors for any possibility of Merging (spatial
proximity)
Location Resolution in the Outdoors is to the nearest AP
Devices generally are located near the AP which is physically
closest to the device
Outdoor Custom Calibration possible from 7.0.116.0 onwards
Location error may double without custom calibration model
Installation with a low density of sensors has the possibility of
having duplicate entries of interferes
Mixing CleanAir (AP1552) and Legacy AP’s (AP152X)
operating in Local Mode (serving clients) is Not supported –
nor is recommended
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52. PMAC Merge in Outdoors
PMAC Convergence and Merging depends upon
Density of the Sensors
Quality of the observed classification
RSSI from the interferer to the APs
RF neighbor list at the APs
Cluster Center - is the closest AP to the device
After PMAC signature merging – one can identify which APa can hear the device
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53. CleanAir WLC enable
(WCS identical under Configure=>Controllers) EDRRM & PDA off
by Default
Wireless=>802.11a/b=>CleanAir
CleanAir is enabled
by Default on the AP
Interface
it is disabled Globally
by default on the
controller.
WLC CLI
(Cisco Controller) >config 802.11a/b cleanair enable
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54. MSE – Context Aware
WCS=>Services=>MSE=>Context Aware Service=>Administration=>tracking parameters
Disabled by
Default
1 interferer = 1 CAS license
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55. MSE – Context Aware - History
WCS=>Services=>MSE=>Context Aware Service=>Administration=>History Parameters
Disabled by
Default
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56. CleanAir Licensing
A CleanAir AP is the license no special controller
license required – will work with WCS Base
Adding an MSE – requires WCS Plus for location
CAS (Context Aware) license required for
Interference location
100 Permanent Interferers licenses are embedded
in MSE. Interferer Licenses open up as Clean Air
APs are detected, in stages of 5 per CleanAir AP
Interference and Client location functionally
identical – and use the same license count
If license is 1000, and interferers are 500, then 500
clients can be displayed
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58. Design & Planning
General Considerations
RF Nature: Not an Exact Science, Especially in Unlicensed Spectrum
Mesh: AP-to-AP Backhaul Distance Capability should be 2x AP-to-Client
WiFi Network Planning Involves:
Site Survey to Identify: AP Location & Height, Line-of-Sight (LoS)/Partial
LoS, Interference, Access to wired backhaul (i.e. Max # Hops), …
Client type (Smart Phones, Tablets, Laptops, …)
Weakest Link typically would be the Uplink on a Smart Phone
User Experience: Minimum Throughput to User, Type of Applications
(Internet, Video, Gaming, ….)
CAPEX & OPEX available for project; Match to type of Service, Robustness
of Coverage, …
Regulatory Considerations; different countries allow different Tx power at
different Frequency Bands.
Type of AP Used: AP1552E&H (External Ant.), AP1552C&I (Integrated Ant.)
AP1552E, AP1552H : Antenna Gain 2.4 GHz (4 dBi), 5 GHz (7 dBi)
AP1552C, AP1552I: Antenna Gain 2.4 GHz (2 dBi), 5 GHz (4 dBi)
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59. Current Standards and Directives: For Your
The 5 GHz Bridging Spectrum Reference
UNII-2
5.825
4.94 4.99 5.15 5.25 5.35 5.470 Extended 5.725 5.850
2 Channels 4 Channels 4 Channels 11 Channels 5 Channels
US ISM 30 dBm
(FCC) UNII-1 UNII-2 6 channels (*)
Radiated Power 33 dBm 5 Channels
EIRP inc antenna
17 dBm 27 dBm 27 dBm
UNII-3, 30 dBm
Indoor Indoor / Indoor /Outdoor
only Outdoor Outdoor
Europe 23 dBm 23 dBm 11 Channels
Radiated Power (200 mW) (200mW) 30 dBm
EIRP inc Antenna
Indoor Indoor Indoor /Outdoor
only only
DFS + TPC required (**)
(*) 6 channel available today:
120, 124, 128 disabled to be compliant with DFS rules in Canada
116 &132 disabled to be compliant with new FCC Enforcement to protect TDWR
(**) Dynamic Frequency Selection (DFS) – Transmit Power Control (TPC)
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60. Current Standards and Directives:
Dynamic Frequency Selection (DFS) requirements
Frequency (MHz)
CH DFS required by Regulations to allow
WLAN to share the 5GHz band with Radar
1 5150 – 5250 36
40 All Cisco products are compliant
(UNII-I) 44
DFS Not Required 48 Best Practices for Radars:
2 5250 – 5350 52
56
Do a Survey and contact the local
(UNII-II) 60 authorities to know if there are radars
64
nearby
100
104 Use “Full Sector Mode” that prevents
5470 – 5725 108
(UNII-II extended) 112 MAPs to be isolated after detecting a
116
120
radar
124
128
Correctly mount the APs (spacing
132 and antennas alignment)
136
140 Remove the radar affected channels
3 5725 – 5850 149 from the Controller channel list
153
(ISM) 157
DFS Not Required 161
165
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61. Cisco Mesh Antennas
2.4 & 5 GHz Dual Band Antennas for AP1552E and AP1552H
Part Number Description
AIR-ANT2547V-N Dual Band 2.4 (4dBi)/5 GHz(7dBi),Omni-Directional
2.4 GHz Antennas for AP1520 Series
Part Number Description
AIR-ANT2450V-N 2.4 GHz, 5 dBi Compact Omni-Directional
AIR-ANT2455V-N 2.4 GHz, 5.5 dBi Compact Omni-Directional
AIR-ANT2480V-N 2.4 GHz, 8 dBi Omni-Directional
4.9/5 GHz Antennas for AP1520 Series
Part Number Description
AIR-ANT5140V-N 5.25 to 5.85 GHz, 4 dBi Right Angle Omni-Directional
AIR-ANT5180V-N 4.9 to 5.85 GHz, 8 dBi Compact Omni-Directional
AIR-ANT58G10SSA-N 5.725 to 5.825 GHz, 9.5 dBi Sector
AIR-ANT5114P-N 4.9 to 5.85 GHz, 14 dBi Patch
AIR-ANT5117S-N 4.9 to 5.85 GHz, 17 dBi 90o Sector
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62. Design and planning
Network Architecture (an example)
Small village in Digital Divide
WLC LOS 5GHz link up to 8 km
5GHz/
RAP 2.4GHz
MAP
POP
Business Area in Digital Divide
RAP
5GHz/
2.4GHz
MAP
Service Provider
Network
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63. Design & Planning (A Domain) 1 meter= 3.28 ft 1 sq-meter = 10.7 sq-ft
Guidance 1 mile = 1.61 km 1 sq-mile = 2.6 sq-km
AP-to-Client Distance
2.4 GHz (A Domain)
AP1522: 600 ft/180 m
AP1552C/I: 800 ft/250 m
AP1552E/H: 1000 ft/300 m
Recommendations AP to AP (Backhaul) = 2 X (AP to Client Distance)
AP to AP = 2x(AP-Client)
AP1522: 1200 ft/366 m
AP1552C/I: 1600 ft/500 m
AP1552E/H: 2000 ft/600 m
AP Density
AP1522: 25 AP/sq-mile = 10 AP/sq-km
AP1552C & AP1552I: 14 AP/sq-mile = 5.3 AP/sq-km
AP1552E & AP1552H: 9 AP/sq-mile = 3.5 AP/sq-km
Assumptions:
Height: APs are at 33 Ft (10 m); Client @ 3.3 ft (1 m)
Throughput: > 1 Mbps. Decreasing AP-AP Distance improves coverage
Near LoS. Flat Terrain Environment
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64. Design & Planning
Guidance- Greenfield Deployment in a Flat Environment
RAP AP-to-Client Cell Radius @ 2.4 GHz
MAP AP 1552C/I: R= 250 meters
AP 1552E/H: R= 300 meters
MAP
• AP-Client Coverage 2.4 GHz
• AP-Client Coverage 5 GHz
• AP-AP Backhaul Coverage 5 GHz
• AP-AP Distance ≥ 2x AP-Client Distance
Range Calculator
http://www.cisco.com/en/US/partner/products/ps11451/products_implementation_design_guides_list.html
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65. Design & Planning For Your
SNR vs Bandwidth 11a/g Reference
(Table is also valid for 1522 2.4 GHz radio with 3 Rx )
MRC Gain from 3 RXs Fade Margin Req.Link SNR
11a MCS Modulation Min SNR (dB) (dB) (dB) (dB)
6 Mb/s BPSK 1/2 5 4.7 9 9.3
9 Mb/s BPSK 3/4 6 4.7 9 10.3
12 Mb/s QPSK 1/2 7 4.7 9 11.3
18 Mb/s QPSK 3/4 9 4.7 9 13.3
24 Mb/s 16QAM 1/2 13 4.7 9 17.3
36 Mb/s 16QAM 3/4 17 4.7 9 21.3
48 Mb/s 64QAM2/3 20 4.7 9 24.3
54 Mb/s 64QAM 3/4 22 4.7 9 26.3
(*) LinkSNR = Minimum SNR - MRC + Fade Margin (9 dB)
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66. Design & Planning For Your
Reference
SNR vs Bandwidth 5 GHz 11n
# of Spatial Min SNR MRC Gain from 3 Fade Margin Link SNR
Streams 11n MCS Modulation (dB) RXs (dB) (dB) (dB)
1 MCS 0 BPSK 1/2 5 4.7 9 9.3
1 MCS 1 QPSK 1/2 7 4.7 9 11.3
1 MCS 2 QPSK 3/4 9 4.7 9 13.3
1 MCS 3 16QAM 1/2 13 4.7 9 17.3
1 MCS 4 16QAM 3/4 17 4.7 9 21.3
1 MCS 5 64QAM2/3 20 4.7 9 24.3
1 MCS 6 64QAM 3/4 22 4.7 9 26.3
1 MCS 7 64QAM 5/6 23 4.7 9 27.3
2 MCS 8 BPSK 1/2 5 1.7 9 12.3
2 MCS 9 QPSK 1/2 7 1.7 9 14.3
2 MCS 10 QPSK 3/4 9 1.7 9 16.3
2 MCS 11 16QAM 1/2 13 1.7 9 20.3
2 MCS 12 16QAM 3/4 17 1.7 9 24.3
2 MCS 13 64QAM2/3 20 1.7 9 27.3
2 MCS 14 64QAM 3/4 22 1.7 9 29.3
2 MCS 15 64QAM 5/6 23 1.7 9 30.3
(*) LinkSNR = Minimum SNR - MRC + Fade Margin (9 dB)
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67. Sectorization
AP to AP distance as per the Range Recommendations
3 Hops
1 Hop to RAP
2 Hops to RAP
3 Hops to RAP
MAP
RAP
MAP
One Square Mile, 25 Cells (max)
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68. Bridge Group Name (BGN)-Sectorization
Logically groups APs and controls the association
of the radios
For adding capacity we recommend that you have
more than one RAP in the same sector, with the
same BGN, but on different channels
A factory default BGN is empty (NULL VALUE).
BGN is a string of Eleven characters maximum
Mesh APs with incorrect BGN, can still join a
running network using BGN as the word “Default”
AP using “default” BGN
Associate clients, and forms mesh relationships
After 15 minutes APs will go to SCAN state rather than
Rebooting
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69. Site Survey and deployment
Get creative, use different tools
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70. Site Survey and deployment
Collocating APs
• Proper spacing = better performance and coverage
• Minimum Vertical Separation of 3 meters (10m if on adjacent channels)
• Antennas vertical alignment is another important factor
• Consider RF interferences: use Spectrum Expert
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71. Site Survey and deployment
Grounding the AP
1- Outdoor Light Control
2- Streetlight Adapter
3-Copper Grounding wire
POWER
INJECTOR
10 AWG
or Larger
Ground Wire
Street Light Power Tap supports 100 to 480 VAC
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72. Site Survey and deployment
Environmental impact
Equipment
Inside
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74. Target Areas for Wi-Fi Offload
Where People Go!
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75. Monetizing Coverage and Capacity with
Next Generation Hotspot
1 2 3 4
Next Generation
Hotspot
802.1x , EAP-SIM, EAP-AKA
Auto SIM
credentials
Encrypted
Wi-Fi Link
802.11i Mobile “concierge” service
Network enablement
Seamless authentication & MSAP
Discovery Wi-Fi roaming - Wireless
802.11u Broadband Alliance
RELIABLE SEAMLESS SECURE PROFITABLE
Carrier class Simplifies network Extends existing Enables location-
solution discovery and SIM-based based and value-
selection for authentication added services
seamless cellular techniques over
data offload encrypted Wi-Fi
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76. Customer Experience Transformation
MSAP- Mobility Service Advertisement Protocol
Reach customers at the moment of choice
Secure Wi-Fi Special offers
Network Discovery
today
Receive transient
applications without
user intervention
A New Mobile Experience for Mobile Subscribers
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77. High Density Deployments –Super Bowl XLV
Cowboys Stadium
942 indoor and outdoor AP’s
24 Wireless Controllers
WCS in continuous operation
+50,000 AT&T clients in the stadium
96.5% Successful Authentication
(Target 96%)
100% Service Availability
(Target 99.99%)
67GB Total Data Traffic from all
AT&T Wi-Fi users
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78. Service Provider Wi-Fi – Convention Center
Mobile World Congress 2011
Operate free Wi-Fi Hotspot
network for attendees
CleanAir – Intelligent Reliability
ClientLink – High Density
Coverage
Video Stream – Quality Video
Band Select – Optimized
Throughput
Cisco Cloud Connect
Managing wireless cloud services
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79. Service Providers Wi-Fi Deployments
Continuous coverage for NY metro area with more
than 25,000 APs (indoor and outdoor)
Internet access on commuter Rails & Ferries feeding
into NY city
Large convention coverage in
Madison Square Garden &
Radio City Music Hall
Increases customer stickiness
with differentiated Wi-Fi service
for reduced customer churn
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80. Q&A
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81. Complete Your Online
Session Evaluation
Receive 25 Cisco Preferred Access points for each session
evaluation you complete.
Give us your feedback and you could win fabulous prizes. Points are
calculated on a daily basis. Winners will be notified by email after
July 22nd.
Complete your session evaluation online now (open a browser
through our wireless network to access our portal) or visit one of the
Internet stations throughout the Convention Center.
Don’t forget to activate your Cisco Live and Networkers Virtual
account for access to all session materials, communities, and on-
demand and live activities throughout the year. Activate your account
at any internet station or visit www.ciscolivevirtual.com.
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82. Visit the Cisco Store for
Related Titles
http://theciscostores.com
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