Cambium Networks XN12 Users Guide
December 2, 2008
Wi-Fi Array
™
XN16, XN12, XN8, XN4
XS16, XS12, XS8, XS4
XS-3900, XS-3700, XS-3500
All rights reserved. This document may not be reproduced or
disclosed in whole or in part by any means without the written
consent of Xirrus, Inc.
Part Number: 800-0006-001
(Revision S)
Trademarks
is a registered trademark of Xirrus, Inc. All other trademarks and brand
names are marks of their respective holders.
Please see Legal Notices, Warnings, Compliance Statements, and Warranty and
License Agreements in “Appendix E: Notices” on page 431.
Xirrus, Inc.
2101 Corporate Center Drive
Thousand Oaks, CA 91320
USA
Tel: 1.805.262.1600
1.800.947.7871 Toll Free in the US
Fax: 1.866.462.3980
www.xirrus.com
Wi-Fi Array
Table of Contents
List of Figures...................................................................................... xi
Introduction......................................................................................... 1
The Xirrus Family of Products ...............................................................................2
Nomenclature ....................................................................................................4
About this User’s Guide .......................................................................................... 4
Organization ......................................................................................................4
Notes and Cautions ..........................................................................................6
Screen Images ................................. ................................................................... 6
Your User’s Guide as a PDF Document ........................................................ 6
Hyperlinks ......................................................................................................... 7
Window or Page? ..............................................................................................7
Why Choose the Xirrus Wi-Fi Array? ................................................................... 7
Wi-Fi Array Product Overview ............................................................................. 8
Enterprise Class Security ................................................................................. 9
Wi-Fi Array Product Family ........................................................................... 9
XN Family of Arrays .................................................................................9
XS Family of Arrays .............................................. ..................................10
Deployment Flexibility .................................................................................. 11
Power over Gigabit Ethernet (PoGE) (Optional) ................................ 12
Enterprise Class Management ...................................................................... 13
Key Features and Benefits ..................................................................................... 16
High Capacity and High Performance ........................................................ 16
Extended Coverage ......................................................................................... 17
Flexible Coverage Schemes ............................................. ... .................... 18
Non-Overlapping Channels .......................................................................... 18
Secure Wireless Access .................................................................................. 18
Applications Enablement .............................................................................. 19
SDMA Optimization ......................................................................................19
Fast Roaming ...................................................................... ............................. 19
Easy Deployment ............................................................................................19
Product Specifications—XN16, XN12, and XN8 ............................................... 20
Product Specifications—XN4 xxxx ................... ... ................................................ 27
Table of Contents i
Wi-Fi Array
Product Specifications—XS16/XS-3900, XS12, and
XS8/XS-3700 ........................................................................................................... 34
Product Specifications—XS4/XS-3500 ......................................................... ...... 39
Installing the Wi-Fi Array................................................................. 45
Installation Prerequisites ...................................................................................... 45
Optional Network Components ...................................................................47
Client Requirements ....................................................................................... 47
Planning Your Installation .................................................................................... 48
General Deployment Considerations .......................................................... 48
Coverage and Capacity Planning .................................................................50
Placement .................................................................................................. 50
RF Patterns .................................................................................... ............ 51
Capacity and Cell Sizes ...........................................................................52
Fine Tuning Cell Sizes .............................................................................53
Roaming Considerations ........................................................................ 54
Allocating Channels ................................................................................54
Deployment Examples ............................................................................ 57
IEEE 802.11n Deployment Considerations ................................................. 59
MIMO (Multiple-In Multiple-Out) ........................................................ 60
Multiple Data Streams—Spatial Multiplexing .................................... 61
Channel Bonding ..................................................................................... 63
Improved MAC Throughput ............................................. .................... 64
Short Guard Interval ............................................................................... 64
Obtaining Higher Data Rates ................................................................. 65
802.11n Capacity ...................................................................................... 66
Failover Planning ............................................................................................67
Port Failover Protection .................................. ........................................67
Switch Failover Protection ..................................................................... 68
Power Planning ...............................................................................................69
AC Power .................................................... ........................................ ...... 69
Power over Gigabit Ethernet ................................................................. 69
Security Planning ..................... .......................................................................70
Wireless Encryption ................................................................................ 70
Authentication ......................................................................................... 70
Meeting PCI DSS Standards ................................................................... 71
Meeting FIPS Standards ......................................................................... 71
ii Table of Contents
Wi-Fi Array
Port Requirements ..........................................................................................72
Network Management Planning ............................................................ ...... 75
WDS Planning ...................................................... ........................................ ...76
Deployment Summary ................................................................................... 79
Installation Workflow ...........................................................................................80
Unpacking the Wi-Fi Array .................................................................................. 81
Installing Your Wi-Fi Array .................................................................................. 83
Choosing a Location ....................................................................................... 83
Wiring Considerations .................................................. .......................... 84
Mounting the Array on a Ceiling ................................................................. 86
Attaching the T-Bar Clips to the Template .......................................... 86
Secure the T-Bar Clips to the Ceiling Support Grid ........................... 87
Installing the Mounting Plate ................................................................ 88
Connecting the Cables—AC Option .....................................................89
Connecting the Cables—PoGE Option ................................................. 90
Attaching the Array to the Mounting Plate ......................................... 92
Securing the Array ................................................................................... 94
Dismounting the Array ...........................................................................95
Mounting Array on a Wall (All models except 4-port Arrays) ................ 96
Kit Contents (Wall Mount Assembly) ..................................................96
Tools Required ......................................................................................... 96
Mark the Wall Position ........................................................................... 97
Install the SNAPTOGGLE™ Toggle Bolts ...........................................98
Attach the Mounting Plate to the Wall Mounting Bracket ................ 99
Attach the Wall Mounting Bracket/Plate Assembly to the Wall ..... 99
Mount the Array .................................................................................... 100
Mounting the Wi-Fi Array on a Wall (XS4 and XS-3500) ....................... 101
Kit Contents (Wall Mount Assembly) ................................................101
Tools Required ....................................................................................... 101
Mark the Wall Position ......................................................................... 102
Install the SNAPTOGGLE™ Toggle Bolts .........................................102
Attach the Mounting Plate to the Wall Mounting Bracket .............. 104
Attach the Wall Mounting Bracket/Plate Assembly to the Wall ... 105
Mount the Array .................................................................................... 106
Removing the Array .............................................................................. 107
Powering Up the Wi-Fi Array ............................................................................ 107
Array LED Operating Sequences ............................................................... 108
Table of Contents iii
Wi-Fi Array
LED Boot Sequence ...............................................................................108
LED Operation when Array is Running ............................................ 109
Establishing Communication with the Array .................................................. 110
Using the Serial Port ............. ........................................ ................................110
Using the Ethernet Ports .............................................................................. 110
Logging In ................ ........................................ .............................................. 111
Performing the Express Setup Procedure .........................................................112
Procedure for Performing an Express Setup ............................................ 112
The Web Management Interface................................................ 119
An Overview ........................................................................................................ 120
Structure of the WMI ...........................................................................................121
User Interface ........................................................................................... ............ 123
Utility Buttons ........................................................................................ 124
Logging In ........................................ ........................................ .............................126
Applying Configuration Changes ..................................................................... 126
Character Restrictions ..................................................................................126
Viewing Status on the Wi-Fi Array............................................... 127
Array Status Windows ........................................................................................ 127
Array Summary ............................................................................................128
Content of the Array Summary Window .......................................... 129
Array Information ........................................................................................132
Array Configuration .....................................................................................132
Admin History .................................. ....................................... ..................... 134
Network Status Windows ...................................................................................134
Network Map .................................... ....................................... ..................... 135
Content of the Network Map Window .............................................. 135
Spanning Tree Status ............................................................ ........................ 136
Routing Table .................................... ....................................... ..................... 138
ARP Table ...................................................................................................... 138
DHCP Leases .................................................................................................139
Connection Tracking/NAT ......................................................................... 139
CDP Neighbors ............................................................................................. 140
RF Monitor Windows ........................... ....................................... ........................ 141
IAPs ................................................................................................................. 142
Spectrum Analyzer ............................... ....................................................... 143
iv Table of Contents
Wi-Fi Array
Intrusion Detection ...................................................................................... 147
Station Status Windows ......................................................................................149
Stations ........................................................................................................... 150
Location Map ................................................................................................. 151
RSSI ................................................................................................................. 156
Signal-to-Noise Ratio (SNR) ........................................................................ 158
Noise Floor ..................................................................................................... 160
Max by IAP ........................................................ ........................................ .... 162
Statistics Windows ............... ....................................... .........................................163
IAP Statistics Summary ................................................................................ 163
Per-IAP Statistics ........................................................................................... 164
Network Statistics .................................................................... ..................... 166
VLAN Statistics ............................................................................................. 167
WDS Statistics .............................................................................. .................. 168
Filter Statistics ............................................................................................... 169
Station Statistics ............................................................................................169
Per-Station Statistics .....................................................................................170
System Log Window ........................................................ ...................................171
Configuring the Wi-Fi Array.......................................................... 173
Express Setup ........................................................................ ................................174
Network ................................................................................................................. 180
Network Interfaces .............................................................. ........................ 181
Network Interface Ports ........................................................................182
DNS Settings ................................................................................................. .188
CDP Settings ..................................................................................................189
Services .................................................................................................................. 191
Time Settings (NTP) ..................................................................................... 192
NetFlow ..........................................................................................................194
System Log ......................................................................................... ............ 195
SNMP .............................................................................................................. 198
DHCP Server ................................................................................................. 201
VLANs ................................................................................................................... 203
Understanding Virtual Tunnels ......................................................... .203
VLAN Management ..................................................................................... 205
Security .................................................................................................................. 207
Understanding Security ............................................................ ............ 208
Table of Contents v
Wi-Fi Array
Certificates and Connecting Securely to the WMI ............................ 211
Using the Array’s Default Certificate ................................................. 211
Using an External Certificate Authority ............................................. 212
Admin Management .................................................... ................................213
Admin RADIUS ........................................ ........................................ ............ 214
Management Control ...................................................................................217
Access Control List .......................................................................................221
Global Settings ..............................................................................................223
External Radius ............................................................................................. 226
Internal Radius ............................... ............................................................... 229
Rogue Control List ........................................................................................231
SSIDs ...................................................................................................................... 233
Understanding SSIDs .................. ........................................ .................. 234
Understanding QoS Priority on the Wi-Fi Array .............................. 235
SSID Management ............................................ ............................................ 238
SSID List (top of page) ....................................... ...................................239
SSID Limits .................................................... .........................................241
Web Page Redirect Configuration Settings ........................................243
Groups ................................................................................................................... 245
Understanding Groups ..................... .................................................... 245
Using Groups .........................................................................................246
Group Management ..................................................................................... 247
Group Limits ..........................................................................................249
IAPs ........................................................................................................................ 252
Understanding Fast Roaming ..............................................................253
IAP Settings ................................................................................................... 254
Global Settings (IAP) ................................................................................... 259
Beacon Configuration ...................................................... ..................... 261
Station Management .................................................. ........................... 261
Advanced Traffic Optimization ..........................................................262
Global Settings .11a ......................................................................................266
Global Settings .11bg .................................................................................... 269
Global Settings .11n ......................................................................................273
Advanced RF Settings .................................................................................. 275
About Standby Mode ............................................................................ 275
About Blocking Rogue APs .................................................................. 276
RF Intrusion Detection ................ ........................................ .................. 277
vi Table of Contents
Wi-Fi Array
RF Resilience ..........................................................................................278
RF Power & Sensitivity ...................................... ...................................279
RF Spectrum Management .................. ................................................. 280
LED Settings ..................................................................................................283
WDS ....................................................................................................................... 285
About Configuring WDS Links ........................................................... 285
WDS Client Links ........................................................................ .................. 287
Filters ..................................................................................................................... 289
Filter Lists ...................................................................................................... 290
Filter Management ....................................................................................... 291
Using Tools on the Wi-Fi Array..................................................... 295
System Tools .......................................... ............................................................... 296
System ..................................................................................................... 297
Configuration ......................................................................................... 298
Diagnostics ............................................................................................. 299
Web Page Redirect .................................................................................300
Tools ........................................................................................................ 301
Progress and Status Frames ................................................................. 303
CLI .......................................................................................................................... 303
Logout .................................................................................................................... 305
The Command Line Interface...................................................... 307
Establishing a Secure Shell (SSH) Connection ................................................. 308
Getting Started with the CLI .............................................................................. 309
Inputting Commands ................................................................................... 309
Getting Help .................................................................................................. 309
Top Level Commands .........................................................................................311
Root Command Prompt ...............................................................................311
configure Commands ................................................................................... 312
show Commands ..........................................................................................315
statistics Commands ......................................... ............................................ 318
Configuration Commands .................................................................................. 320
acl .................................................................................................................... 320
admin .............................................................................................................. 321
cdp ................................................................................................................... 322
clear ................................................................................................................. 323
Table of Contents vii
Wi-Fi Array
contact-info .................................................................................................... 324
date-time ........................................................................................................ 325
dhcp-server .................................................................................................... 326
dns ................................................................................................................... 327
file .................................................................................................................... 328
filter ................................................................................................................. 331
fips ................................................................................................................... 333
group .............................................................................................................. 334
hostname ........................................................................................................ 334
https ................................................................................................................ 335
interface .......................................................................................................... 336
load ................................................................................................................. 337
location ........................................................................................................... 337
management .................................................................................................. 338
more ................................................................................................................ 338
netflow ............................................................................................................339
no ..................................................................................................................... 340
pci-audit ......................................................................................................... 342
quit .................................................................................................................. 343
radius-server ..................................................................................................343
reboot .............................................................................................................. 344
reset ................................................................................................................. 344
run-tests ..........................................................................................................345
security ........................................................................................................... 347
snmp ............................................................................................................... 348
ssh .................................................................................................................... 348
ssid .................................................................................................................. 350
standby ........................................................................................................... 350
syslog .............................................................................................................. 351
telnet ............................................................................................................... 352
uptime ............................................................................................................. 354
vlan .................................................................................................................. 354
Sample Configuration Tasks .............................................................................. 356
Configuring a Simple Open Global SSID .................................................. 357
Configuring a Global SSID using WPA-PEAP ......................................... 358
Configuring an SSID-Specific SSID using WPA-PEAP ...........................359
Enabling Global IAPs ................................................................................... 360
viii Table of Contents
Wi-Fi Array
Disabling Global IAPs .................................................................................. 361
Enabling a Specific IAP ................................................................................ 362
Disabling a Specific IAP ................................................................ ............... 363
Setting Cell Size Auto-Configuration for All IAPs .................................. 364
Setting the Cell Size for All IAPs ................................................................ 365
Setting the Cell Size for a Specific IAP .......................................................366
Configuring VLANs on an Open SSID ...................................................... 367
Configuring Radio Assurance Mode (Loopback Tests) .......................... 368
Appendices..................................................................................... 371
Appendix A: Servicing the Wi-Fi Array ................................... ..........................373
Removing the Access Panel ................................................................................ 375
Reinstalling the Access Panel ............................................................................. 378
Replacing the FLASH Memory Module ...........................................................380
Replacing the Main System Memory ................................................................382
Replacing the Integrated Access Point Radio Module ................................... 384
Replacing the Power Supply Module ............................................................... 387
Appendix B: Quick Reference Guide ............................................................... 389
Factory Default Settings ...................................................................................... 389
Host Name .....................................................................................................389
Network Interfaces ............................................................ ........................... 389
Serial ........................................................................................................ 389
Gigabit 1 and Gigabit 2 ......................................................................... 390
Fast Ethernet ........................................................... ................................390
Integrated Access Points (IAPs) ..................................................................391
Server Settings ....................... ........................................ ................................392
NTP .......................................................................................................... 392
Syslog ......................................................................................................392
SNMP ......................................................................................................392
DHCP .............................................................................................................. 393
Default SSID ......................................................... ........................................ .393
Security .................... ........................................ .............................................. 394
Global Settings - Encryption ............................................................... 394
External RADIUS (Global) .................................................................. 394
Internal RADIUS ....................................................... .............................395
Administrator Account and Password ......................................................396
Table of Contents ix
Wi-Fi Array
Management .................................................................................................. 396
Keyboard Shortcuts ............................................................................................. 396
Appendix C: Technical Support ........................................................................ 399
General Hints and Tips .......................................................................................399
Frequently Asked Questions .............................................................................. 400
Multiple SSIDs ............................................................................................... 400
Security ...........................................................................................................402
VLAN Support .............................................................................................. 405
Array Monitor and Radio Assurance Capabilities ..........................................408
Enabling Monitoring on the Array ..................................................... 408
How Monitoring Works ............................................................................... 408
Radio Assurance .................................... ........................................ ............... 409
Radio Assurance Options ..................................................................... 410
Upgrading the Array via CLI ............................................................................. 411
Sample Output for the Upgrade Procedure: ............................................. 412
Power over Gigabit Ethernet Compatibility Matrix ....................................... 416
Additional Note: .................................................................................... 417
Determining If an XS-3700 or XS-3900 is Modified for PoGE ......... 418
Contact Information ............................................................................................419
Appendix D: Implementing Security Standards ............................................. 421
Implementing PCI DSS on the Wi-Fi Array .............................................. ....... 421
The pci-audit Command .......................................................................421
Implementing FIPS Security on the Wi-Fi Array ............................................422
Appendix E: Notices ......................................................... ..................................431
Notices ................................................................................................................... 431
EU Directive 1999/5/EC Compliance Information ........................................ 434
Safety Warnings ......................................... .......................................................... 442
Translated Safety Warnings ...............................................................................443
Software Warranty and License Agreement ....................... .. ........................... 444
Hardware Warranty Agreement ....................................................................... 451
Glossary of Terms.......................................................................... 453
Index................................................................................................ 465
x Table of Contents
Wi-Fi Array
List of Figures
Figure 1. Xirrus Arrays.............. ................................................................................. 2
Figure 2. The Xirrus Management System..............................................................3
Figure 3. Wi-Fi Array (XN16).................................................................................... 8
Figure 4. Wireless Coverage Patterns .................................................................... 11
Figure 5. XP8 - Power over Ethernet Usage ................................... ....................... 12
Figure 6. WMI: Array Status............................................... .....................................14
Figure 7. Layout of IAPs (XN16)............................................................................. 16
Figure 8. Naming of IAPs (XS16)............................................................................ 17
Figure 9. Coverage Schemes.................................................................................... 18
Figure 10. Wall Thickness Considerations ............................................. ... .............. 49
Figure 11. Unit Placement................ ........................................ ..................................50
Figure 12. Full (Normal) Coverage...........................................................................51
Figure 13. Adjusting RF Patterns.............................................................................. 51
Figure 14. Custom Coverage.............................................................. ....................... 52
Figure 15. Connection Rate vs. Distance.................................................................. 52
Figure 16. Transmit Power......................................................................................... 53
Figure 17. Overlapping Cells...................................................... ...............................54
Figure 18. Allocating Channels Manually...............................................................56
Figure 19. Deployment Scenario (54 Mbps)—Per Sector ...................................... 57
Figure 20. Deployment Scenario (36 Mbps)—Per Sector ...................................... 57
Figure 21. Deployment Scenario (18 Mbps)—Per Sector ...................................... 58
Figure 22. Classic 802.11 Signal Transmission........................................................ 60
Figure 23. MIMO Signal Processing.........................................................................61
Figure 24. Spatial Multiplexing.................................................................................62
Figure 25. Channel Bonding.............................................. ........................................63
Figure 26. MAC Throughput Improvements.......................................................... 64
Figure 27. Computing 802.11n Data Rates ..............................................................65
Figure 28. 802.11n Capacity.......................................................................................66
Figure 29. Port Failover Protection........................................................................... 67
Figure 30. Switch Failover Protection ...................................................................... 68
Figure 31. Port Requirements for XMS ....................................................................72
Figure 32. WDS Link..................................................... ........................................ ...... 76
Figure 33. A Multiple Hop WDS Connection.........................................................77
Figure 34. WDS Failover Protection .........................................................................77
List of Figures xi
Wi-Fi Array
Figure 35. Installation Workflow.............................................................................. 80
Figure 36. Array Placement................................. ........................................ .............. 83
Figure 37. Attaching the T-Bar Clips to the Template........................................... 86
Figure 38. Attaching the T-Bar Clips to the Ceiling Grid...................................... 87
Figure 39. Installing the Mounting Plate.................................................................88
Figure 40. Connecting the Cables .............................................................................89
Figure 41. Connecting the Cables (PoGE—XS8/XS12/XS16) .............................. 90
Figure 42. Connecting the Cable (PoGE—XS4) ....................... ............................... 91
Figure 43. Attaching the Unit (XS4 shown)............................................................. 92
Figure 44. Attaching the Unit (XS-3900) .................................................................. 93
Figure 45. Securing the Array.................................................................................... 94
Figure 46. IAP Positions (XS16 shown)................................................................. ...95
Figure 47. Wall Mount—Marking the Holes........................................................... 97
Figure 48. Installing the Toggle Bolts....................... .......................................... ...... 98
Figure 49. Attaching the Wall Mounting Plate....................................................... 99
Figure 50. Mounting the Array on a Wall ....................... ......................................100
Figure 51. Wall Mount—Marking the Holes......................................................... 102
Figure 52. Installing the Toggle Bolts....................... .......................................... .... 103
Figure 53. Attaching the Array Mounting Plate........................... ........................ 104
Figure 54. Attaching the Wall Mounting Bracket to the Wall ............................105
Figure 55. Mounting the Array on a Wall ....................... ......................................106
Figure 56. LED Locations (XS-3900)....................................................................... 107
Figure 57. Network Interface Ports..................................................................... .... 110
Figure 58. Express Setup.......................................................................................... 112
Figure 59. LEDs are Switched On...........................................................................117
Figure 60. Web Management Interface................................................ .................. 120
Figure 61. WMI: Frames......................................................................... .................. 123
Figure 62. WMI: Utility Buttons..............................................................................124
Figure 63. Feedback Form................ ........................................ ................................125
Figure 64. Logging In to the Wi-Fi Array.............................................................. 126
Figure 65. Array Summary................................................................. ..................... 128
Figure 66. Disabled IAP (Partial View).................................................................. 130
Figure 67. IAP Cells ......................................................... .........................................131
Figure 68. Array Information ..................................................................................132
Figure 69. Show Configuration...............................................................................133
Figure 70. Admin Login History............................................................................. 134
Figure 71. Network Map.............................................................................. ............ 135
xii List of Figures
Wi-Fi Array
Figure 72. Spanning Tree Status.............................................................................. 137
Figure 73. Routing Table............................................ .............................................. 138
Figure 74. ARP Table................................................................................................ 138
Figure 75. DHCP Leases...........................................................................................139
Figure 76. Connection Tracking........................................ ......................................139
Figure 77. CDP Neighbors....................................................................................... 140
Figure 78. RF Monitor—IAPs..................................................................................142
Figure 79. RF Spectrum Analyzer....................... .................................................... 144
Figure 80. Intrusion Detection/Rogue AP List.....................................................147
Figure 81. Categorizing APs.................................................................. .................. 148
Figure 82. Stations........................................................................ .............................150
Figure 83. Location Map........................................................................................... 151
Figure 84. Controls for Location Map.................................................................... 152
Figure 85. Minimizing stations....................................... .........................................153
Figure 86. Setting Array location on a Custom Image......................................... 155
Figure 87. Station RSSI Values ................................................................................156
Figure 88. Station RSSI Values—Colorized Graphical View.............................. 157
Figure 89. Station Signal-to-Noise Ratio Values...................................................158
Figure 90. Station SNR Values—Colorized Graphical View.............................. 159
Figure 91. Station Noise Floor Values....................................................................160
Figure 92. Station Noise Floor Values—Colorized Graphical View.................. 161
Figure 93. Max by IAP.............................................................................................. 162
Figure 94. IAP Statistics Summary Page................................................................ 164
Figure 95. Individual IAP Statistics Page (for IAP abg(n)1)...............................165
Figure 96. Network Statistics...................................................................................166
Figure 97. VLAN Statistics............... ........................................ ... .............................167
Figure 98. WDS Statistics ................................................... ......................................168
Figure 99. Filter Statistics.........................................................................................169
Figure 100. Station Statistics...................................................................................... 169
Figure 101. Individual Station Statistics Page......................................................... 170
Figure 102. System Log ............................................................. ................................171
Figure 103. WMI: Express Setup...............................................................................174
Figure 104. LEDs are Switched On...........................................................................179
Figure 105. Network Interfaces.......................................................................... ....... 180
Figure 106. Network Settings............................................................ ........................ 181
Figure 107. Network Interface Ports................................ .........................................182
Figure 108. Port Modes (a-b) .....................................................................................184
List of Figures xiii
Wi-Fi Array
Figure 109. Port Modes (c-d) .................................................. ...................................185
Figure 110. Port Modes (e-f) ...................................................................................... 186
Figure 111. DNS Settings............................................................................................ 188
Figure 112. CDP Settings............................................................................................189
Figure 113. Services.................................................... .......................................... ....... 191
Figure 114. Time Settings (Manual Time)................................................................ 192
Figure 115. Time Settings (NTP Time Enabled)...................................................... 193
Figure 116. NetFlow................................................ ........................................ ............ 194
Figure 117. System Log ..............................................................................................195
Figure 118. SNMP ....................................................................................................... 198
Figure 119. DHCP Management.................................................. .............................201
Figure 120. VLANs............................................ ........................................ .................. 203
Figure 121. VLAN Management...................................... .........................................205
Figure 122. Security........................................... ........................................... ............... 207
Figure 123. Import Xirrus Certificate Authority..................................................... 212
Figure 124. Admin Management......................................................... ..................... 213
Figure 125. Admin RADIUS...................................................................................... 215
Figure 126. Management Control............................................................................. 217
Figure 127. Access Control List.......................... ........................................ ............... 221
Figure 128. Global Settings (Security)...................................................................... 223
Figure 129. External RADIUS Server ....................................................................... 226
Figure 130. Internal RADIUS Server ........................................................................ 229
Figure 131. Rogue Control List ................................................................................. 231
Figure 132. SSIDs........................................................... .............................................. 233
Figure 133. Four Traffic Classes................................................................................235
Figure 134. SSID Management..................................................................................238
Figure 135. WPR Internal Splash Page Fields (SSID Management)..................... 243
Figure 136. Groups............................................................. .........................................245
Figure 137. Group Management.................................................... ........................... 247
Figure 138. IAPs...........................................................................................................252
Figure 139. IAP Settings............................................................. ................................254
Figure 140. Global Settings (IAPs)............................................................................ 259
Figure 141. Global Settings .11a................................................................................ 266
Figure 142. Global Settings .11bg..............................................................................269
Figure 143. Global Settings .11n xxx Replace!!........................................................ 273
Figure 144. Advanced RF Settings ........................................................................... 275
Figure 145. LED Settings............................................................................................ 283
xiv List of Figures
Wi-Fi Array
Figure 146. WDS......................................................................................................... .285
Figure 147. .Configuring a WDS Link...................................................................... 286
Figure 148. WDS Client Links ....................................... ........................................ .... 287
Figure 149. Filters............................................................................. ........................... 289
Figure 150. Filter Lists ................................................................................................290
Figure 151. Filter Management .................................................................................291
Figure 152. System Tools.............................................. ....................................... ....... 296
Figure 153. Saving the Diagnostic Log...................................................... ............... 299
Figure 154. Managing WPR Splash/Login page files............................................ 300
Figure 155. System Command (Ping).................................................. ..................... 301
Figure 156. Radius Ping Output................................................................................ 302
Figure 157. CLI Window................................................................................ ............ 303
Figure 158. Login Window ....................................... ................................................. 305
Figure 159. Logging In............................................... ................................................. 308
Figure 160. Help Window............. .............................................................................309
Figure 161. Full Help .............................................. .......................................... .......... 310
Figure 162. Partial Help.................................................. ............................................ 310
Figure 163. Configuring a Simple Open Global SSID............................................357
Figure 164. Configuring a Global SSID using WPA-PEAP................................... 358
Figure 165. Configuring an SSID-Specific SSID using WPA-PEAP.....................359
Figure 166. Enabling Global IAPs............................................................................. 360
Figure 167. Disabling Global IAPs............................................................................ 361
Figure 168. Enabling a Specific IAP.......................................................................... 362
Figure 169. Disabling a Specific IAP.........................................................................363
Figure 170. Setting the Cell Size for All IAPs..........................................................364
Figure 171. Setting the Cell Size for All IAPs..........................................................365
Figure 172. Setting the Cell Size for a Specific IAP................................................ 366
Figure 173. Configuring VLANs on an Open SSID................................................ 367
Figure 174. Configuring Radio Assurance Mode (Loopback Testing)................ 369
Figure 175. Disconnecting Power from the Array.................................................. 373
Figure 176. Removing the Access Panel Screws......................................... ............ 375
Figure 177. Removing the Access Panel .................................................................. 376
Figure 178. Disconnecting the Power Supply and Fan.......................................... 376
Figure 179. Reconnecting the Fan and Power Supply........................................... 378
Figure 180. Reinstalling the Access Panel................................................................378
Figure 181. Removing the FLASH Memory Module............................................. 380
Figure 182. Removing the DIMM Memory Module..............................................382
List of Figures xv
Wi-Fi Array
Figure 183. Removing the Chassis Cover Screws................................................... 384
Figure 184. Removing the Chassis Cover........................................... ..................... 384
Figure 185. Lifting the Integrated Access Point Module....................................... 385
Figure 186. Disconnect the Integrated Access Point Module ............................... 385
Figure 187. Installing a New Access Panel (with Power Supply)........................ 387
Figure 188. XN8/XN12/XN16 and XS8/XS12/XS16 Support PoGE without a
Splitter 418
Figure 189. Determining if XS-37000/3900 is modified ........................................ 418
Figure 190. Sample output of pci-audit command.................................................422
Figure 191. Applying Three Seals to the XS16/XS12/XS8 or XS-3900/XS-3700423
Figure 192. Applying Two Tamper-evident seals to the XS4 or XS-3500 ........... 424
Figure 193. SSID Management Window......................................... ........................ 425
Figure 194. Security/Global Settings Window.......................................................426
Figure 195. Security/Management Control Window............................................427
Figure 196. Services/SNMP Window............................................................ .......... 427
Figure 197. IAPs/Global Settings Screen................................................................. 428
xvi List of Figures
Wi-Fi Array
Introduction
These topics introduce the Xirrus Wi-Fi Array, including an overview of its key
features and benefits, and a detailed listing of the product’s physical,
environmental, technology and regulatory specifications.
z “The Xirrus Family of Products” on page 2.
z “About this User’s Guide” on page 4.
z “Why Choose the Xirrus Wi-Fi Array?” on page 7.
z “Wi-Fi Array Product Overview ” on page8.
z “Key Features and Benefits” on page 16.
z “Product Specifications—XN16, XN12, and XN8” on page 20.
z “Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700” on
page 34.
z “Product Specifications—XS4/XS-3500” on page 39.
Introduction 1
The Xirrus Family of Products
Figure 1. Xirrus Arrays
The Xirrus family of products includes the following:
z The XS Series of Xirrus Wi-Fi Arrays (XS16 / XS12 / XS8 / XS4)
XS Arrays integrate multiple Integrated Access Points—radios with highgain directional antennas for increased range and coverage. The Array
also incorporates an onboard multi-gigabit switch, Wi-Fi controller, and
firewall into a single device, along with a dedicated Wi-Fi threat sensor
and an embedded spectrum analyzer. The Wi-Fi Array provides more
than enough bandwidth, security, and control to replace switched
Ethernet to the desktop as the primary network connection. The XS16 has
16 IAPs, the XS12 has 12 IAPs, the XS8 has 8 IAPs, and the XS4 has 4 IAPs.
Wi-Fi Array
z The XN Series of Xirrus Wi-Fi Arrays (XN16 / XN12 / XN8 / XN4)
The newest Xirrus Wi-Fi Arrays add the speed and reach of IEEE 802.11n
technology to the XS series of Arrays. The XN Series of Arrays feature the
capacity and performance needed to replace switched Ethernet to the
desktop. The XN16 has 16 IAPs, the XN12 has 12 IAPs, the XN8 has 8
IAPs, and the XN4 has 4 IAPs.
2 Introduction
Wi-Fi Array
z Xirrus Management System (XMS)
XMS is used for managing large Array deployments from a centralized
Web-based interface. The XMS server is available pre-installed on the
Xirrus XM-33xx-CC Management Platform Series, or as a software
package (XA-3300-CC) to be installed on your own server hardware.
Figure 2 illustrates the elements of the Xirrus Management System. Users
start the XMS client simply by entering the URL of the XMS server on a
web browser. The XMS server manages a number of Wi-Fi Arrays via
SNMP.
Figure 2. The Xirrus Management System
If you need detailed information about this product, refer to the XMS
User’s Guide, part number 800-0007-001.
z Xirrus Power over Gigabit Ethernet (PoGE)
The PoGE modules eliminate the need for running separate power
cabling. Additionally, an eight port module provides distributed power
to multiple Arrays, facilitating backup power when connected via a UPS.
Introduction 3
Wi-Fi Array
Nomenclature
Throughout this User’s Guide, the Xirrus Wi-Fi Array is also referred to as simply
the Array. In some instances, the terms product and unit are also used. When
discussing specific products from the Xirrus family, the product name is used (for
example, XN16, XS12, or XS-3500). The Wi-Fi Array’s operating sys tem is referred
to as the ArrayOS. The Web Management Interface for browser-based
management of the Array is referred to as WMI.
The XS series of Arrays have two types of radios—the 802.11a radios are named
a1 to a12 (for 16-port models). The 802.11a/b/g radios are named abg1 to abg4.
The XN series of Arrays also have two types of radios—the 802.11a/n radios are
named an1 through an12 (for 16-port models). The 802.11a/b/g/n radios are
named abgn1 to abgn4. When referring to a port that may be on either an XN or
XS model, the nomenclature abg(n) and a(n) will be used, e.g., abg(n)2 or a(n)6.
The Xirrus Management System is referred to as XMS. The Power over Gigabit
Ethernet system may be referred to as PoGE.
About this User’s Guide
This User ’s Guide provides detailed inform ation and procedures that will enable
wireless network administrators to install, configure and manage the Wi-Fi Array
so that end users can take full advantage of the product’s features and
functionality without technical assistance.
Organization
Topics and procedures are organized by function under the following chapter
headings:
z Introduction
Provides a brief introduction to wireless technology, an overview of the
product, including its key features and benefits, and presents the product
specifications.
z Installing the Wi-Fi Array
Defines prerequisites for deploying and installing the Array and provides
instructions to help you plan and complete a successful installation.
4 Introduction
Wi-Fi Array
z The Web Management Interface
Offers an overview of the product’s embedded Web Management
Interface, including its content and structure. It emphasizes what you
need to do to ensure that any configuration changes you make are
applied, and provides a list of restricted characters. It also includes
instructions for logging in to the Array with your Web browser.
z Viewing Status on the Wi-Fi Array
Describes the status and statistics displays avai lable on the Array using
its embedded Web Management Interface.
z Configuring the Wi-Fi Array
Contains procedures for configuring the Array using its embedded Web
Management Interface.
z Using Tools on the Wi-Fi Array
Contains procedures for using utility tools provided in the Web
Management Interface. It includes procedures for upgrading the system
firmware, uploading and downloading configurations and other files,
using diagnostic tools, and resetting the Array to its factory defaults .
z The Command Line Interface
Includes the commands and the command structure used by the Wi-Fi
Array’s Command Line Interface (CLI), and provides a procedure for
establishing a Telnet connection to the Array. This chapter also includes
some sample key configuration tasks using the CLI.
z Appendix A: Servicing the Wi-Fi Array
Contains procedures for servicing the Array, including the removal and
reinstallation of major hardware components.
z Appendix B: Quick Reference Guide
Contains the product’s factory default settings.
z Appendix C: Technical Support
Offers guidance to resolve technical issues, including general hints and
tips to enhance your product experience, and a procedure for isolating
problems within an Array-enabled wireless network. Also includes
Frequently Asked Questions (FAQs) and Xirrus contact information.
Introduction 5
z Appendix D: Implementing Security Standards
Discusses meeting security standards with the Array, including FIPS and
PCI DSS.
z Appendix E: Notices
Contains the legal notices, licnesing, and compliance statements for the
Array. Please read this section carefully.
z Glossary of Terms
Provides an explanation of terms directly related to Xirrus product
technology, organized alphabetically.
z Index
The index is a valuable information search tool. Use the index to locate
specific topics discussed in this User ’s Guide. Simply click on any page
number in the index to jump to the referenced topic.
Notes and Cautions
The following symbols are used throughout this User’s Guide:
Wi-Fi Array
#
!
This symbol is used for general notes that provide useful supplemental
information.
This symbol is used for cautions. Cautions provide critical information that
may adversely affect the performance of the product.
Screen Images
Some screen images of the Web Management Interface have been modified for
clarity. For example, an image may have been cropped to highlight a specific area
of the screen, and/or sample data may be included in some fields.
Your User’s Guide as a PDF Document
This User’s Guide is also made available as a secure PDF (Portable Document
Format) file and can be viewed using the Adobe® Acrobat Reader® product. It
cannot be edited or modified. If you don’t have Acrobat Reader, you can
downloaded it free-of-charge from: http://www.adobe.com.
6 Introduction
Wi-Fi Array
Hyperlinks
If you click on body text that appears in the color TEAL (with the exception of
headings or notes) the embedded hyperlink within the text will immediately take
you to the referenced destination. All internal and external cross-references,
including page numbers within the List of Figures and the Index, have associated
hyperlinks. After “jumping” to a referenced topic, if you want to return to the
previous page (reference source), simply click on Acrobat’s previous page button.
Window or Page?
Is a window a page, or is a page a window? There seems to be some dispute as to
what the correct term should be. For the sake of consistency, this document uses
the term Window when referring to how the Wi-Fi Array’s Web Management
Interface is displayed on your monitor.
Why Choose the Xirrus Wi-Fi Array?
The deployment of wireless LANs is becoming increasingly common as
businesses strive for greater flexibility in the workplace and the need for
employee mobility rises. The only requirements for an effective wireless
deployment are a power source, a couple of screws, and a little imagination.
Wireless LAN is also fully compatible with standard Ethernet protocols, so
connectivity with existing wired infrastructures is transparent to users—they can
still access and use the same applications and network services that they use
when plugged into the company’s wired LAN infrastructure (it’s only the plug
that no longer exists).
Wireless LAN has come a long way in the past few years and now offers the
performance, reliability and security that Enterprise customers have come to
expect from their networks. The technology is being driven by four major IEEE
standards:
z 802.11a
Operates in the 5 GHz range with a maximum speed of 54 Mbps.
z 802.11b
Operates in the 2.4 GHz range with a maximum speed of 11 Mbps.
Introduction 7
Wi-Fi Array
z 802.11g
Supports a higher transmission speed of 54 Mbps in the 2.4 GHz range
and is backwards compatible with 802.11b.
z 802.11n
Uses multiple antennas per radio to boost transmission speed as high as
300 Mbps, increasing throughput, range, and maximum number of users.
802.11n is backwards compatible with 802.11a/b/g.
Whether you have just a handful of users or thousands of users, wireless has the
scalability and flexibility to serve your needs.
See Also
Key Features and Benefits
Wi-Fi Array Product Overview
Product Specifications—XN16, XN12, and XN8
Product Specifications—XS4/XS-3500
Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700
The Xirrus Family of Products
Wi-Fi Array Product Overview
Part of the family of Xirrus products, the Wi -Fi Array is a high capacity, multimode device designed for the Enterprise market, with twice the range and up to
eight times the capacity of competitive wireless products.
Figure 3. Wi-Fi Array (XN16)
8 Introduction
Wi-Fi Array
The Wi-Fi Array (regardless of the product model) is Wi-Fi® compliant and
simultaneously supports 802.11a, 802.11b and 802.11g clients. XN model arrays
add the enhanced abilities of 802.11n to this combination. Enterprise class features
such as VLAN support and multiple SSID capability enable robust network
compatibility and a high level of scalability and system control. The optional
Xirrus Management System (XMS) allows global management of hundreds of
Arrays from a central location.
Multiple versions of the Array with differ ent numbers o f Integrated Ac cess Points
(IAPs) support a variety of deployment applications: 16 IAPs (XN16, XS16,
XS-3900), 12 IAPs (XN12, XS12), 8 IAPs (XN8, XS8, XS-3700), and 4 IAPs (XN4,
XS4, XS-3500).
Enterprise Class Security
The latest and most effective wireless encryption security standards, including
WPA (Wi-Fi Protected Access) and WPA2 with 802.11i AES (Advanced
Encryption Standard) are provided with the Wi-Fi Array. In addition, the use of
an embedded RADIUS server (or 802.1x with an external RADIUS server) ensures
user authentication—multiple Arrays can authenticate to the optional XMS,
ensuring only authorized Arrays become part of the wireless network. Rogue AP
detection, site monitoring, and RF spectrum analysis are performed in the
background by the Array automatically.
Wi-Fi Array Product Family
The following tables provide an overview of the main features supported by the
Wi-Fi Array product family.
XN Family of Arrays
Feature XN16 XN12 XN8 XN4
Number of
802.11a/b/g/n radios
Introduction 9
4444
Wi-Fi Array
Feature XN16 XN12 XN8 XN4
Number of
802.11a/n radios
Total radios 16 12 8 4
Number of
integrated antennas
Integrated Wi-Fi switch ports 16 12 8 4
Integrated RF spectrum
analyzer, threat sensors
Uplink Ports 2221
Wi-Fi bandwidth 4.8 Gbps 3.6 Gbps 2.4 Gbps 1.2 Gbps
Users supported 1,024 768 512 256
XS Family of Arrays
Feature
Number of
802.11a/b/g radios
XS16,
XS-3900
4444
12840
48 36 24 12
Yes Yes Yes Yes
XS12
XS8,
XS-3700
XS4,
XS-3500
Number of
802.11a radios
Total radios 16 12 8 4
Integrated Wi-F i
switch ports
Integrated RF
spectrum analyzer
and threat sensors
Uplink Ports 2221
10 Introduction
12840
16 12 8 4
Yes Yes Yes Yes
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