Cambium Networks XN12 WIRELESS LAN ARRAY User Manual

Xirrus, Inc. WIRELESS LAN ARRAY

A Pages 1 to 125 from ArrayGuide Rel4 SS Dec02 2008

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)Wi-Fi ArrayXN16, XN12, XN8, XN4XS16, XS12, XS8, XS4XS-3900, XS-3700, XS-3500™

Trademarksis a registered trademark of Xirrus, Inc. All other trademarks and brandnames are marks of their respective holders.Please see Legal Notices, Warnings, Compliance Statements, and Warranty andLicense Agreements in “Appendix E: Notices” on page 431.Xirrus, Inc.2101 Corporate Center DriveThousand Oaks, CA 91320USATel: 1.805.262.16001.800.947.7871 Toll Free in the USFax: 1.866.462.3980www.xirrus.com

Wi-Fi ArrayTable of Contents iTable of ContentsList of Figures...................................................................................... xiIntroduction......................................................................................... 1The Xirrus Family of Products ............................................................................... 2Nomenclature .................................................................................................... 4About this User’s Guide ..........................................................................................4Organization ...................................................................................................... 4Notes and Cautions ..........................................................................................6Screen Images .................................................................................................... 6Your User’s Guide as a PDF Document ........................................................ 6Hyperlinks ......................................................................................................... 7Window or Page? .............................................................................................. 7Why Choose the Xirrus Wi-Fi Array? ................................................................... 7Wi-Fi Array Product Overview .............................................................................8Enterprise Class Security .................................................................................9Wi-Fi Array Product Family ........................................................................... 9XN Family of Arrays ................................................................................. 9XS Family of Arrays ................................................................................ 10Deployment Flexibility .................................................................................. 11Power over Gigabit Ethernet (PoGE) (Optional) ................................12Enterprise Class Management ...................................................................... 13Key Features and Benefits ..................................................................................... 16High Capacity and High Performance ........................................................16Extended Coverage .........................................................................................17Flexible Coverage Schemes .................................................................... 18Non-Overlapping Channels ..........................................................................18Secure Wireless Access ..................................................................................18Applications Enablement .............................................................................. 19SDMA Optimization ...................................................................................... 19Fast Roaming ................................................................................................... 19Easy Deployment ............................................................................................ 19Product Specifications—XN16, XN12, and XN8 ...............................................20Product Specifications—XN4 xxxx ...................................................................... 27

Wi-Fi Arrayii Table of ContentsProduct Specifications—XS16/XS-3900, XS12, and XS8/XS-3700 ........................................................................................................... 34Product Specifications—XS4/XS-3500 ............................................................... 39Installing the Wi-Fi Array................................................................. 45Installation Prerequisites ...................................................................................... 45Optional Network Components ................................................................... 47Client Requirements ....................................................................................... 47Planning Your Installation .................................................................................... 48General Deployment Considerations ..........................................................48Coverage and Capacity Planning .................................................................50Placement ..................................................................................................50RF Patterns ................................................................................................51Capacity and Cell Sizes ...........................................................................52Fine Tuning Cell Sizes ............................................................................. 53Roaming Considerations ........................................................................ 54Allocating Channels ................................................................................ 54Deployment Examples ............................................................................ 57IEEE 802.11n Deployment Considerations ................................................. 59MIMO (Multiple-In Multiple-Out) ........................................................ 60Multiple Data Streams—Spatial Multiplexing .................................... 61Channel Bonding .....................................................................................63Improved MAC Throughput ................................................................. 64Short Guard Interval ...............................................................................64Obtaining Higher Data Rates .................................................................65802.11n Capacity ......................................................................................66Failover Planning ............................................................................................ 67Port Failover Protection ..........................................................................67Switch Failover Protection .....................................................................68Power Planning ............................................................................................... 69AC Power .................................................................................................. 69Power over Gigabit Ethernet .................................................................69Security Planning ............................................................................................ 70Wireless Encryption ................................................................................ 70Authentication ......................................................................................... 70Meeting PCI DSS Standards ...................................................................71Meeting FIPS Standards .........................................................................71

Wi-Fi ArrayTable of Contents iiiPort Requirements ..........................................................................................72Network Management Planning ..................................................................75WDS Planning .................................................................................................76Deployment Summary ...................................................................................79Installation Workflow ...........................................................................................80Unpacking the Wi-Fi Array ..................................................................................81Installing Your Wi-Fi Array ..................................................................................83Choosing a Location .......................................................................................83Wiring Considerations ............................................................................ 84Mounting the Array on a Ceiling ................................................................. 86Attaching the T-Bar Clips to the Template .......................................... 86Secure the T-Bar Clips to the Ceiling Support Grid ...........................87Installing the Mounting Plate ................................................................ 88Connecting the Cables—AC Option ..................................................... 89Connecting the Cables—PoGE Option .................................................90Attaching the Array to the Mounting Plate ......................................... 92Securing the Array ...................................................................................94Dismounting the Array ...........................................................................95Mounting Array on a Wall (All models except 4-port Arrays) ................ 96Kit Contents (Wall Mount Assembly) ..................................................96Tools Required .........................................................................................96Mark the Wall Position ........................................................................... 97Install the SNAPTOGGLE™ Toggle Bolts ...........................................98Attach the Mounting Plate to the Wall Mounting Bracket ................99Attach the Wall Mounting Bracket/Plate Assembly to the Wall ..... 99Mount the Array .................................................................................... 100Mounting the Wi-Fi Array on a Wall (XS4 and XS-3500) .......................101Kit Contents (Wall Mount Assembly) ................................................101Tools Required .......................................................................................101Mark the Wall Position ......................................................................... 102Install the SNAPTOGGLE™ Toggle Bolts .........................................102Attach the Mounting Plate to the Wall Mounting Bracket ..............104Attach the Wall Mounting Bracket/Plate Assembly to the Wall ... 105Mount the Array .................................................................................... 106Removing the Array .............................................................................. 107Powering Up the Wi-Fi Array ............................................................................ 107Array LED Operating Sequences ............................................................... 108

Wi-Fi Arrayiv Table of ContentsLED Boot Sequence ............................................................................... 108LED Operation when Array is Running ............................................109Establishing Communication with the Array ..................................................110Using the Serial Port .....................................................................................110Using the Ethernet Ports .............................................................................. 110Logging In ......................................................................................................111Performing the Express Setup Procedure ......................................................... 112Procedure for Performing an Express Setup ............................................112The Web Management Interface................................................ 119An Overview ........................................................................................................120Structure of the WMI ........................................................................................... 121User Interface .......................................................................................................123Utility Buttons ........................................................................................124Logging In ............................................................................................................. 126Applying Configuration Changes .....................................................................126Character Restrictions .................................................................................. 126Viewing Status on the Wi-Fi Array............................................... 127Array Status Windows ........................................................................................ 127Array Summary ............................................................................................ 128Content of the Array Summary Window .......................................... 129Array Information ........................................................................................ 132Array Configuration ..................................................................................... 132Admin History .............................................................................................. 134Network Status Windows ...................................................................................134Network Map ................................................................................................ 135Content of the Network Map Window .............................................. 135Spanning Tree Status .................................................................................... 136Routing Table ................................................................................................ 138ARP Table ......................................................................................................138DHCP Leases .................................................................................................139Connection Tracking/NAT ......................................................................... 139CDP Neighbors ............................................................................................. 140RF Monitor Windows .......................................................................................... 141IAPs ................................................................................................................. 142Spectrum Analyzer ...................................................................................... 143

Wi-Fi ArrayTable of Contents vIntrusion Detection ......................................................................................147Station Status Windows ...................................................................................... 149Stations ...........................................................................................................150Location Map ................................................................................................. 151RSSI ................................................................................................................. 156Signal-to-Noise Ratio (SNR) ........................................................................158Noise Floor ..................................................................................................... 160Max by IAP .................................................................................................... 162Statistics Windows ............................................................................................... 163IAP Statistics Summary ................................................................................ 163Per-IAP Statistics ........................................................................................... 164Network Statistics .........................................................................................166VLAN Statistics ............................................................................................. 167WDS Statistics ................................................................................................ 168Filter Statistics ............................................................................................... 169Station Statistics ............................................................................................ 169Per-Station Statistics ..................................................................................... 170System Log Window ........................................................................................... 171Configuring the Wi-Fi Array.......................................................... 173Express Setup ........................................................................................................ 174Network ................................................................................................................. 180Network Interfaces ......................................................................................181Network Interface Ports ........................................................................ 182DNS Settings .................................................................................................. 188CDP Settings ..................................................................................................189Services .................................................................................................................. 191Time Settings (NTP) .....................................................................................192NetFlow ..........................................................................................................194System Log .....................................................................................................195SNMP ..............................................................................................................198DHCP Server ................................................................................................. 201VLANs ................................................................................................................... 203Understanding Virtual Tunnels .......................................................... 203VLAN Management ..................................................................................... 205Security .................................................................................................................. 207Understanding Security ........................................................................208

Wi-Fi Arrayvi Table of ContentsCertificates and Connecting Securely to the WMI ............................ 211Using the Array’s Default Certificate .................................................211Using an External Certificate Authority .............................................212Admin Management ....................................................................................213Admin RADIUS ............................................................................................ 214Management Control ...................................................................................217Access Control List .......................................................................................221Global Settings .............................................................................................. 223External Radius ............................................................................................. 226Internal Radius .............................................................................................. 229Rogue Control List ........................................................................................231SSIDs ...................................................................................................................... 233Understanding SSIDs ............................................................................234Understanding QoS Priority on the Wi-Fi Array .............................. 235SSID Management ........................................................................................238SSID List (top of page) .......................................................................... 239SSID Limits .............................................................................................241Web Page Redirect Configuration Settings ........................................243Groups ................................................................................................................... 245Understanding Groups ......................................................................... 245Using Groups ......................................................................................... 246Group Management ..................................................................................... 247Group Limits ..........................................................................................249IAPs ........................................................................................................................ 252Understanding Fast Roaming .............................................................. 253IAP Settings ................................................................................................... 254Global Settings (IAP) ...................................................................................259Beacon Configuration ........................................................................... 261Station Management .............................................................................261Advanced Traffic Optimization ..........................................................262Global Settings .11a ......................................................................................266Global Settings .11bg ....................................................................................269Global Settings .11n ...................................................................................... 273Advanced RF Settings ..................................................................................275About Standby Mode ............................................................................ 275About Blocking Rogue APs ..................................................................276RF Intrusion Detection .......................................................................... 277

Wi-Fi ArrayTable of Contents viiRF Resilience .......................................................................................... 278RF Power & Sensitivity ......................................................................... 279RF Spectrum Management ................................................................... 280LED Settings ..................................................................................................283WDS ....................................................................................................................... 285About Configuring WDS Links ........................................................... 285WDS Client Links .......................................................................................... 287Filters ..................................................................................................................... 289Filter Lists ......................................................................................................290Filter Management ....................................................................................... 291Using Tools on the Wi-Fi Array..................................................... 295System Tools .........................................................................................................296System ..................................................................................................... 297Configuration ......................................................................................... 298Diagnostics .............................................................................................299Web Page Redirect ................................................................................. 300Tools ........................................................................................................ 301Progress and Status Frames ................................................................. 303CLI .......................................................................................................................... 303Logout .................................................................................................................... 305The Command Line Interface...................................................... 307Establishing a Secure Shell (SSH) Connection .................................................308Getting Started with the CLI .............................................................................. 309Inputting Commands ...................................................................................309Getting Help .................................................................................................. 309Top Level Commands .........................................................................................311Root Command Prompt ...............................................................................311configure Commands ...................................................................................312show Commands ..........................................................................................315statistics Commands .....................................................................................318Configuration Commands .................................................................................. 320acl .................................................................................................................... 320admin ..............................................................................................................321cdp ................................................................................................................... 322clear ................................................................................................................. 323

Wi-Fi Arrayviii Table of Contentscontact-info .................................................................................................... 324date-time ........................................................................................................ 325dhcp-server .................................................................................................... 326dns ................................................................................................................... 327file .................................................................................................................... 328filter ................................................................................................................. 331fips ................................................................................................................... 333group ..............................................................................................................334hostname ........................................................................................................ 334https ................................................................................................................ 335interface ..........................................................................................................336load ................................................................................................................. 337location ........................................................................................................... 337management .................................................................................................. 338more ................................................................................................................ 338netflow ............................................................................................................339no ..................................................................................................................... 340pci-audit ......................................................................................................... 342quit .................................................................................................................. 343radius-server .................................................................................................. 343reboot .............................................................................................................. 344reset ................................................................................................................. 344run-tests ..........................................................................................................345security ...........................................................................................................347snmp ............................................................................................................... 348ssh .................................................................................................................... 348ssid .................................................................................................................. 350standby ...........................................................................................................350syslog ..............................................................................................................351telnet ...............................................................................................................352uptime .............................................................................................................354vlan .................................................................................................................. 354Sample Configuration Tasks .............................................................................. 356Configuring a Simple Open Global SSID .................................................. 357Configuring a Global SSID using WPA-PEAP .........................................358Configuring an SSID-Specific SSID using WPA-PEAP ...........................359Enabling Global IAPs ...................................................................................360

Wi-Fi ArrayTable of Contents ixDisabling Global IAPs .................................................................................. 361Enabling a Specific IAP ................................................................................ 362Disabling a Specific IAP ...............................................................................363Setting Cell Size Auto-Configuration for All IAPs .................................. 364Setting the Cell Size for All IAPs ................................................................ 365Setting the Cell Size for a Specific IAP ....................................................... 366Configuring VLANs on an Open SSID ...................................................... 367Configuring Radio Assurance Mode (Loopback Tests) .......................... 368Appendices..................................................................................... 371Appendix A: Servicing the Wi-Fi Array ............................................................. 373Removing the Access Panel ................................................................................375Reinstalling the Access Panel ............................................................................. 378Replacing the FLASH Memory Module ........................................................... 380Replacing the Main System Memory ................................................................ 382Replacing the Integrated Access Point Radio Module ...................................384Replacing the Power Supply Module ...............................................................387Appendix B: Quick Reference Guide ............................................................... 389Factory Default Settings ......................................................................................389Host Name ..................................................................................................... 389Network Interfaces ....................................................................................... 389Serial ........................................................................................................ 389Gigabit 1 and Gigabit 2 .........................................................................390Fast Ethernet ...........................................................................................390Integrated Access Points (IAPs) ..................................................................391Server Settings ...............................................................................................392NTP ..........................................................................................................392Syslog ...................................................................................................... 392SNMP ...................................................................................................... 392DHCP ..............................................................................................................393Default SSID .................................................................................................. 393Security ..........................................................................................................394Global Settings - Encryption ...............................................................394External RADIUS (Global) .................................................................. 394Internal RADIUS ....................................................................................395Administrator Account and Password ...................................................... 396

Wi-Fi Arrayx Table of ContentsManagement .................................................................................................. 396Keyboard Shortcuts ............................................................................................. 396Appendix C: Technical Support ........................................................................ 399General Hints and Tips ....................................................................................... 399Frequently Asked Questions .............................................................................. 400Multiple SSIDs ............................................................................................... 400Security ...........................................................................................................402VLAN Support .............................................................................................. 405Array Monitor and Radio Assurance Capabilities ..........................................408Enabling Monitoring on the Array ..................................................... 408How Monitoring Works ............................................................................... 408Radio Assurance ...........................................................................................409Radio Assurance Options .....................................................................410Upgrading the Array via CLI .............................................................................411Sample Output for the Upgrade Procedure: ............................................. 412Power over Gigabit Ethernet Compatibility Matrix .......................................416Additional Note: ....................................................................................417Determining If an XS-3700 or XS-3900 is Modified for PoGE ......... 418Contact Information ............................................................................................419Appendix D: Implementing Security Standards ............................................. 421Implementing PCI DSS on the Wi-Fi Array .....................................................421The pci-audit Command ....................................................................... 421Implementing FIPS Security on the Wi-Fi Array ............................................ 422Appendix E: Notices ...........................................................................................431Notices ................................................................................................................... 431EU Directive 1999/5/EC Compliance Information ........................................ 434Safety Warnings ...................................................................................................442Translated Safety Warnings ............................................................................... 443Software Warranty and License Agreement .................................................... 444Hardware Warranty Agreement .......................................................................451Glossary of Terms.......................................................................... 453Index................................................................................................ 465

Wi-Fi ArrayList of Figures xiList of FiguresFigure 1. Xirrus Arrays............................................................................................... 2Figure 2. The Xirrus Management System.............................................................. 3Figure 3. Wi-Fi Array (XN16)....................................................................................8Figure 4. Wireless Coverage Patterns .................................................................... 11Figure 5. XP8 - Power over Ethernet Usage..........................................................12Figure 6. WMI: Array Status....................................................................................14Figure 7. Layout of IAPs (XN16).............................................................................16Figure 8. Naming of IAPs (XS16)............................................................................ 17Figure 9. Coverage Schemes....................................................................................18Figure 10. Wall Thickness Considerations.............................................................. 49Figure 11. Unit Placement..........................................................................................50Figure 12. Full (Normal) Coverage........................................................................... 51Figure 13. Adjusting RF Patterns.............................................................................. 51Figure 14. Custom Coverage.....................................................................................52Figure 15. Connection Rate vs. Distance.................................................................. 52Figure 16. Transmit Power.........................................................................................53Figure 17. Overlapping Cells.....................................................................................54Figure 18. Allocating Channels Manually............................................................... 56Figure 19. Deployment Scenario (54 Mbps)—Per Sector ...................................... 57Figure 20. Deployment Scenario (36 Mbps)—Per Sector ...................................... 57Figure 21. Deployment Scenario (18 Mbps)—Per Sector ...................................... 58Figure 22. Classic 802.11 Signal Transmission........................................................60Figure 23. MIMO Signal Processing......................................................................... 61Figure 24. Spatial Multiplexing................................................................................. 62Figure 25. Channel Bonding......................................................................................63Figure 26. MAC Throughput Improvements..........................................................64Figure 27. Computing 802.11n Data Rates .............................................................. 65Figure 28. 802.11n Capacity....................................................................................... 66Figure 29. Port Failover Protection........................................................................... 67Figure 30. Switch Failover Protection ...................................................................... 68Figure 31. Port Requirements for XMS.................................................................... 72Figure 32. WDS Link................................................................................................... 76Figure 33. A Multiple Hop WDS Connection......................................................... 77Figure 34. WDS Failover Protection......................................................................... 77

Wi-Fi Arrayxii List of FiguresFigure 35. Installation Workflow.............................................................................. 80Figure 36. Array Placement.......................................................................................83Figure 37. Attaching the T-Bar Clips to the Template........................................... 86Figure 38. Attaching the T-Bar Clips to the Ceiling Grid...................................... 87Figure 39. Installing the Mounting Plate................................................................. 88Figure 40. Connecting the Cables.............................................................................89Figure 41. Connecting the Cables (PoGE—XS8/XS12/XS16) .............................. 90Figure 42. Connecting the Cable (PoGE—XS4) ......................................................91Figure 43. Attaching the Unit (XS4 shown)............................................................. 92Figure 44. Attaching the Unit (XS-3900) .................................................................. 93Figure 45. Securing the Array....................................................................................94Figure 46. IAP Positions (XS16 shown)....................................................................95Figure 47. Wall Mount—Marking the Holes........................................................... 97Figure 48. Installing the Toggle Bolts.......................................................................98Figure 49. Attaching the Wall Mounting Plate....................................................... 99Figure 50. Mounting the Array on a Wall ............................................................. 100Figure 51. Wall Mount—Marking the Holes......................................................... 102Figure 52. Installing the Toggle Bolts.....................................................................103Figure 53. Attaching the Array Mounting Plate...................................................104Figure 54. Attaching the Wall Mounting Bracket to the Wall............................ 105Figure 55. Mounting the Array on a Wall ............................................................. 106Figure 56. LED Locations (XS-3900)....................................................................... 107Figure 57. Network Interface Ports.........................................................................110Figure 58. Express Setup.......................................................................................... 112Figure 59. LEDs are Switched On........................................................................... 117Figure 60. Web Management Interface..................................................................120Figure 61. WMI: Frames........................................................................................... 123Figure 62. WMI: Utility Buttons.............................................................................. 124Figure 63. Feedback Form........................................................................................125Figure 64. Logging In to the Wi-Fi Array.............................................................. 126Figure 65. Array Summary......................................................................................128Figure 66. Disabled IAP (Partial View).................................................................. 130Figure 67. IAP Cells .................................................................................................. 131Figure 68. Array Information..................................................................................132Figure 69. Show Configuration............................................................................... 133Figure 70. Admin Login History............................................................................. 134Figure 71. Network Map.......................................................................................... 135

Wi-Fi ArrayList of Figures xiiiFigure 72. Spanning Tree Status..............................................................................137Figure 73. Routing Table..........................................................................................138Figure 74. ARP Table................................................................................................138Figure 75. DHCP Leases........................................................................................... 139Figure 76. Connection Tracking.............................................................................. 139Figure 77. CDP Neighbors....................................................................................... 140Figure 78. RF Monitor—IAPs..................................................................................142Figure 79. RF Spectrum Analyzer........................................................................... 144Figure 80. Intrusion Detection/Rogue AP List..................................................... 147Figure 81. Categorizing APs....................................................................................148Figure 82. Stations..................................................................................................... 150Figure 83. Location Map........................................................................................... 151Figure 84. Controls for Location Map....................................................................152Figure 85. Minimizing stations................................................................................ 153Figure 86. Setting Array location on a Custom Image.........................................155Figure 87. Station RSSI Values ................................................................................ 156Figure 88. Station RSSI Values—Colorized Graphical View.............................. 157Figure 89. Station Signal-to-Noise Ratio Values................................................... 158Figure 90. Station SNR Values—Colorized Graphical View.............................. 159Figure 91. Station Noise Floor Values.................................................................... 160Figure 92. Station Noise Floor Values—Colorized Graphical View..................161Figure 93. Max by IAP.............................................................................................. 162Figure 94. IAP Statistics Summary Page................................................................164Figure 95. Individual IAP Statistics Page (for IAP abg(n)1) ............................... 165Figure 96. Network Statistics...................................................................................166Figure 97. VLAN Statistics.......................................................................................167Figure 98. WDS Statistics .........................................................................................168Figure 99. Filter Statistics......................................................................................... 169Figure 100. Station Statistics......................................................................................169Figure 101. Individual Station Statistics Page......................................................... 170Figure 102. System Log .............................................................................................171Figure 103. WMI: Express Setup............................................................................... 174Figure 104. LEDs are Switched On........................................................................... 179Figure 105. Network Interfaces.................................................................................180Figure 106. Network Settings....................................................................................181Figure 107. Network Interface Ports......................................................................... 182Figure 108. Port Modes (a-b) ..................................................................................... 184

Wi-Fi Arrayxiv List of FiguresFigure 109. Port Modes (c-d) ..................................................................................... 185Figure 110. Port Modes (e-f)......................................................................................186Figure 111. DNS Settings............................................................................................ 188Figure 112. CDP Settings............................................................................................ 189Figure 113. Services.....................................................................................................191Figure 114. Time Settings (Manual Time)................................................................ 192Figure 115. Time Settings (NTP Time Enabled)...................................................... 193Figure 116. NetFlow....................................................................................................194Figure 117. System Log .............................................................................................. 195Figure 118. SNMP ....................................................................................................... 198Figure 119. DHCP Management............................................................................... 201Figure 120. VLANs...................................................................................................... 203Figure 121. VLAN Management............................................................................... 205Figure 122. Security..................................................................................................... 207Figure 123. Import Xirrus Certificate Authority..................................................... 212Figure 124. Admin Management..............................................................................213Figure 125. Admin RADIUS......................................................................................215Figure 126. Management Control.............................................................................217Figure 127. Access Control List.................................................................................221Figure 128. Global Settings (Security)...................................................................... 223Figure 129. External RADIUS Server ....................................................................... 226Figure 130. Internal RADIUS Server........................................................................229Figure 131. Rogue Control List ................................................................................. 231Figure 132. SSIDs......................................................................................................... 233Figure 133. Four Traffic Classes................................................................................ 235Figure 134. SSID Management.................................................................................. 238Figure 135. WPR Internal Splash Page Fields (SSID Management)..................... 243Figure 136. Groups...................................................................................................... 245Figure 137. Group Management............................................................................... 247Figure 138. IAPs........................................................................................................... 252Figure 139. IAP Settings............................................................................................. 254Figure 140. Global Settings (IAPs)............................................................................ 259Figure 141. Global Settings .11a................................................................................ 266Figure 142. Global Settings .11bg.............................................................................. 269Figure 143. Global Settings .11n xxx Replace!!........................................................ 273Figure 144. Advanced RF Settings ........................................................................... 275Figure 145. LED Settings............................................................................................ 283

Wi-Fi ArrayList of Figures xvFigure 146. WDS.......................................................................................................... 285Figure 147. .Configuring a WDS Link...................................................................... 286Figure 148. WDS Client Links................................................................................... 287Figure 149. Filters........................................................................................................ 289Figure 150. Filter Lists ................................................................................................ 290Figure 151. Filter Management ................................................................................. 291Figure 152. System Tools............................................................................................296Figure 153. Saving the Diagnostic Log.....................................................................299Figure 154. Managing WPR Splash/Login page files............................................300Figure 155. System Command (Ping)....................................................................... 301Figure 156. Radius Ping Output................................................................................ 302Figure 157. CLI Window............................................................................................ 303Figure 158. Login Window........................................................................................ 305Figure 159. Logging In................................................................................................308Figure 160. Help Window.......................................................................................... 309Figure 161. Full Help.................................................................................................. 310Figure 162. Partial Help.............................................................................................. 310Figure 163. Configuring a Simple Open Global SSID............................................357Figure 164. Configuring a Global SSID using WPA-PEAP...................................358Figure 165. Configuring an SSID-Specific SSID using WPA-PEAP.....................359Figure 166. Enabling Global IAPs............................................................................. 360Figure 167. Disabling Global IAPs............................................................................ 361Figure 168. Enabling a Specific IAP.......................................................................... 362Figure 169. Disabling a Specific IAP......................................................................... 363Figure 170. Setting the Cell Size for All IAPs..........................................................364Figure 171. Setting the Cell Size for All IAPs..........................................................365Figure 172. Setting the Cell Size for a Specific IAP................................................ 366Figure 173. Configuring VLANs on an Open SSID................................................ 367Figure 174. Configuring Radio Assurance Mode (Loopback Testing)................ 369Figure 175. Disconnecting Power from the Array.................................................. 373Figure 176. Removing the Access Panel Screws.....................................................375Figure 177. Removing the Access Panel .................................................................. 376Figure 178. Disconnecting the Power Supply and Fan..........................................376Figure 179. Reconnecting the Fan and Power Supply...........................................378Figure 180. Reinstalling the Access Panel................................................................ 378Figure 181. Removing the FLASH Memory Module............................................. 380Figure 182. Removing the DIMM Memory Module..............................................382

Wi-Fi Arrayxvi List of FiguresFigure 183. Removing the Chassis Cover Screws................................................... 384Figure 184. Removing the Chassis Cover................................................................ 384Figure 185. Lifting the Integrated Access Point Module....................................... 385Figure 186. Disconnect the Integrated Access Point Module ............................... 385Figure 187. Installing a New Access Panel (with Power Supply)........................ 387Figure 188. XN8/XN12/XN16 and XS8/XS12/XS16 Support PoGE without a Splitter 418Figure 189. Determining if XS-37000/3900 is modified ........................................ 418Figure 190. Sample output of pci-audit command................................................. 422Figure 191. Applying Three Seals to the XS16/XS12/XS8 or XS-3900/XS-3700 423Figure 192. Applying Two Tamper-evident seals to the XS4 or XS-3500 ...........424Figure 193. SSID Management Window................................................................. 425Figure 194. Security/Global Settings Window....................................................... 426Figure 195. Security/Management Control Window............................................ 427Figure 196. Services/SNMP Window...................................................................... 427Figure 197. IAPs/Global Settings Screen................................................................. 428

Wi-Fi ArrayIntroduction 1IntroductionThese topics introduce the Xirrus Wi-Fi Array, including an overview of its keyfeatures 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 page 8.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” onpage 34. z“Product Specifications—XS4/XS-3500” on page 39.

Wi-Fi Array2 IntroductionThe Xirrus Family of ProductsFigure 1. Xirrus ArraysThe Xirrus family of products includes the following:zThe XS Series of Xirrus Wi-Fi Arrays (XS16 / XS12 / XS8 / XS4)XS Arrays integrate multiple Integrated Access Points—radios with high-gain directional antennas for increased range and coverage. The Arrayalso incorporates an onboard multi-gigabit switch, Wi-Fi controller, andfirewall into a single device, along with a dedicated Wi-Fi threat sensorand an embedded spectrum analyzer. The Wi-Fi Array provides morethan enough bandwidth, security, and control to replace switchedEthernet to the desktop as the primary network connection. The XS16 has16 IAPs, the XS12 has 12 IAPs, the XS8 has 8 IAPs, and the XS4 has 4 IAPs.zThe XN Series of Xirrus Wi-Fi Arrays (XN16 / XN12 / XN8 / XN4)The newest Xirrus Wi-Fi Arrays add the speed and reach of IEEE 802.11ntechnology to the XS series of Arrays. The XN Series of Arrays feature thecapacity and performance needed to replace switched Ethernet to thedesktop. The XN16 has 16 IAPs, the XN12 has 12 IAPs, the XN8 has 8IAPs, and the XN4 has 4 IAPs.

Wi-Fi ArrayIntroduction 3zXirrus Management System (XMS)XMS is used for managing large Array deployments from a centralizedWeb-based interface. The XMS server is available pre-installed on theXirrus XM-33xx-CC Management Platform Series, or as a softwarepackage (XA-3300-CC) to be installed on your own server hardware. Figure 2 illustrates the elements of the Xirrus Management System. Usersstart the XMS client simply by entering the URL of the XMS server on aweb browser. The XMS server manages a number of Wi-Fi Arrays viaSNMP. Figure 2. The Xirrus Management SystemIf you need detailed information about this product, refer to the XMSUser’s Guide, part number 800-0007-001.zXirrus Power over Gigabit Ethernet (PoGE)The PoGE modules eliminate the need for running separate powercabling. Additionally, an eight port module provides distributed powerto multiple Arrays, facilitating backup power when connected via a UPS.

Wi-Fi Array4 IntroductionNomenclatureThroughout this User’s Guide, the Xirrus Wi-Fi Array is also referred to as simplythe Array. In some instances, the terms product and unit are also used. Whendiscussing specific products from the Xirrus family, the product name is used (forexample, XN16, XS12, or XS-3500). The Wi-Fi Array’s operating system is referredto as the ArrayOS. The Web Management Interface for browser-basedmanagement of the Array is referred to as WMI. The XS series of Arrays have two types of radios—the 802.11a radios are nameda1 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 arenamed an1 through an12 (for 16-port models). The 802.11a/b/g/n radios arenamed abgn1 to abgn4. When referring to a port that may be on either an XN orXS 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 GigabitEthernet system may be referred to as PoGE.About this User’s GuideThis User’s Guide provides detailed information and procedures that will enablewireless network administrators to install, configure and manage the Wi-Fi Arrayso that end users can take full advantage of the product’s features andfunctionality without technical assistance.OrganizationTopics and procedures are organized by function under the following chapterheadings: zIntroductionProvides a brief introduction to wireless technology, an overview of theproduct, including its key features and benefits, and presents the productspecifications.zInstalling the Wi-Fi ArrayDefines prerequisites for deploying and installing the Array and providesinstructions to help you plan and complete a successful installation.

Wi-Fi ArrayIntroduction 5zThe Web Management InterfaceOffers an overview of the product’s embedded Web ManagementInterface, including its content and structure. It emphasizes what youneed to do to ensure that any configuration changes you make areapplied, and provides a list of restricted characters. It also includesinstructions for logging in to the Array with your Web browser.zViewing Status on the Wi-Fi ArrayDescribes the status and statistics displays available on the Array usingits embedded Web Management Interface. zConfiguring the Wi-Fi ArrayContains procedures for configuring the Array using its embedded WebManagement Interface. zUsing Tools on the Wi-Fi ArrayContains procedures for using utility tools provided in the WebManagement Interface. It includes procedures for upgrading the systemfirmware, uploading and downloading configurations and other files,using diagnostic tools, and resetting the Array to its factory defaults.zThe Command Line InterfaceIncludes the commands and the command structure used by the Wi-FiArray’s Command Line Interface (CLI), and provides a procedure forestablishing a Telnet connection to the Array. This chapter also includessome sample key configuration tasks using the CLI.zAppendix A: Servicing the Wi-Fi ArrayContains procedures for servicing the Array, including the removal andreinstallation of major hardware components.zAppendix B: Quick Reference GuideContains the product’s factory default settings.zAppendix C: Technical SupportOffers guidance to resolve technical issues, including general hints andtips to enhance your product experience, and a procedure for isolatingproblems within an Array-enabled wireless network. Also includesFrequently Asked Questions (FAQs) and Xirrus contact information.

Wi-Fi Array6 IntroductionzAppendix D: Implementing Security StandardsDiscusses meeting security standards with the Array, including FIPS andPCI DSS.zAppendix E: NoticesContains the legal notices, licnesing, and compliance statements for theArray. Please read this section carefully.zGlossary of TermsProvides an explanation of terms directly related to Xirrus producttechnology, organized alphabetically.zIndexThe index is a valuable information search tool. Use the index to locatespecific topics discussed in this User’s Guide. Simply click on any pagenumber in the index to jump to the referenced topic.Notes and CautionsThe following symbols are used throughout this User’s Guide: Screen ImagesSome screen images of the Web Management Interface have been modified forclarity. For example, an image may have been cropped to highlight a specific areaof the screen, and/or sample data may be included in some fields.Your User’s Guide as a PDF DocumentThis User’s Guide is also made available as a secure PDF (Portable DocumentFormat) file and can be viewed using the Adobe® Acrobat Reader® product. Itcannot be edited or modified. If you don’t have Acrobat Reader, you candownloaded it free-of-charge from: http://www.adobe.com.#This symbol is used for general notes that provide useful supplementalinformation.!This symbol is used for cautions. Cautions provide critical information that may adversely affect the performance of the product.

Wi-Fi ArrayIntroduction 7HyperlinksIf you click on body text that appears in the color TEAL (with the exception ofheadings or notes) the embedded hyperlink within the text will immediately takeyou to the referenced destination. All internal and external cross-references,including page numbers within the List of Figures and the Index, have associatedhyperlinks. After “jumping” to a referenced topic, if you want to return to theprevious 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 towhat the correct term should be. For the sake of consistency, this document usesthe term Window when referring to how the Wi-Fi Array’s Web ManagementInterface is displayed on your monitor.Why Choose the Xirrus Wi-Fi Array?The deployment of wireless LANs is becoming increasingly common asbusinesses strive for greater flexibility in the workplace and the need foremployee mobility rises. The only requirements for an effective wirelessdeployment are a power source, a couple of screws, and a little imagination.Wireless LAN is also fully compatible with standard Ethernet protocols, soconnectivity with existing wired infrastructures is transparent to users—they canstill access and use the same applications and network services that they usewhen plugged into the company’s wired LAN infrastructure (it’s only the plugthat no longer exists).Wireless LAN has come a long way in the past few years and now offers theperformance, reliability and security that Enterprise customers have come toexpect from their networks. The technology is being driven by four major IEEEstandards:z802.11aOperates in the 5 GHz range with a maximum speed of 54 Mbps.z802.11bOperates in the 2.4 GHz range with a maximum speed of 11 Mbps.

Wi-Fi Array8 Introductionz802.11gSupports a higher transmission speed of 54 Mbps in the 2.4 GHz rangeand is backwards compatible with 802.11b.z802.11nUses multiple antennas per radio to boost transmission speed as high as300 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 thescalability and flexibility to serve your needs.See AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XS4/XS-3500Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700The Xirrus Family of ProductsWi-Fi Array Product OverviewPart of the family of Xirrus products, the Wi-Fi Array is a high capacity, multi-mode device designed for the Enterprise market, with twice the range and up toeight times the capacity of competitive wireless products.Figure 3. Wi-Fi Array (XN16)

Wi-Fi ArrayIntroduction 9The Wi-Fi Array (regardless of the product model) is Wi-Fi® compliant andsimultaneously supports 802.11a, 802.11b and 802.11g clients. XN model arraysadd the enhanced abilities of 802.11n to this combination. Enterprise class featuressuch as VLAN support and multiple SSID capability enable robust networkcompatibility and a high level of scalability and system control. The optionalXirrus Management System (XMS) allows global management of hundreds ofArrays from a central location.Multiple versions of the Array with different numbers of Integrated Access 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 SecurityThe latest and most effective wireless encryption security standards, includingWPA (Wi-Fi Protected Access) and WPA2 with 802.11i AES (AdvancedEncryption Standard) are provided with the Wi-Fi Array. In addition, the use ofan embedded RADIUS server (or 802.1x with an external RADIUS server) ensuresuser authentication—multiple Arrays can authenticate to the optional XMS,ensuring only authorized Arrays become part of the wireless network. Rogue APdetection, site monitoring, and RF spectrum analysis are performed in thebackground by the Array automatically.Wi-Fi Array Product FamilyThe following tables provide an overview of the main features supported by theWi-Fi Array product family.XN Family of Arrays Feature XN16 XN12 XN8 XN4Number of802.11a/b/g/n radios 4444

Wi-Fi Array10 IntroductionXS Family of Arrays Number of802.11a/n radios 12840Total radios 16 12 8 4Number ofintegrated antennas 48 36 24 12Integrated Wi-Fi switch ports 16 12 8 4Integrated RF spectrum analyzer, threat sensors Yes Yes Yes YesUplink Ports 2221Wi-Fi bandwidth 4.8 Gbps 3.6 Gbps 2.4 Gbps 1.2 GbpsUsers supported 1,024 768 512 256Feature XS16, XS-3900 XS12 XS8, XS-3700XS4, XS-3500Number of802.11a/b/g radios 4444Number of802.11a radios 12840Total radios 16 12 8 4Integrated Wi-Fi switch ports 16 12 8 4Integrated RF spectrum analyzer and threat sensorsYes Yes Yes YesUplink Ports 2221Feature XN16 XN12 XN8 XN4

Wi-Fi ArrayIntroduction 11See AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XS4/XS-3500Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Power over Gigabit Ethernet (PoGE) (Optional)Why Choose the Xirrus Wi-Fi Array?Deployment FlexibilityXirrus’ unique multi-radio architecture generates 360 degrees of sectored high-gain 802.11a/b/g/n or 802.11a/b/g coverage that provides extended range andthe highest possible data rates for a large volume of clients. Each sector can becontrolled automatically or manually, creating a pattern of wireless coverageperfectly tailored to individual customer needs. For example:Figure 4. Wireless Coverage PatternsFigure 4 depicts the following two scenarios:Wi-Fi bandwidth 864 864 432 216Users supported 1,024 768 512 256Feature XS16, XS-3900 XS12 XS8, XS-3700XS4, XS-3500outside wall

Wi-Fi Array12 IntroductionzFull pattern coverageAll radios are activated with coverage spanning 360 degrees. If withinrange, clients will always receive coverage regardless of their geographicposition relative to the Array.zPartial pattern coverageIf desired, the Wi-Fi Array can be deployed close to an exterior wall. Inthis case, half of all available radios have been deactivated to preventredundant signals from “bleeding” beyond the site’s perimeter wall. Thisconfiguration may also be used in those cases where you want to restrictwireless coverage to selected areas of the building’s interior.See also, “Flexible Coverage Schemes” on page 18.Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus XP1 and XP8 Power over Gigabit Ethernet modules provide power toyour Arrays over the same Cat 5e or Cat 6 cable used for data, eliminating theneed to run power cables and provide an AC power outlet in close proximity toeach unit.Figure 5. XP8 - Power over Ethernet Usage

Wi-Fi ArrayIntroduction 13Specific models of the Array are compatible with specific PoGE modules. Fordetails, please see “Power over Gigabit Ethernet Compatibility Matrix” onpage 416. See AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XS4/XS-3500Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?Enterprise Class Management The Wi-Fi Array can be configured with its default RF settings, or the RF settingscan be customized using the Array’s embedded Web Management Interface

Wi-Fi Array14 Introduction(WMI). The WMI enables easy configuration and control from a graphicalconsole, along with a full compliment of troubleshooting tools and statistics.Figure 6. WMI: Array StatusIn addition, a fully featured Command Line Interface (CLI) offers IT professionalsa familiar management and control environment. SNMP (Simple NetworkManagement Protocol) is also supported to allow management from an SNMPcompliant management tool, such as the optional Xirrus Management System.See Also#For deployments of more than five Arrays, we recommend that you use theXirrus Management System (XMS). The XMS offers a rich set of featuresfor fine control over large deployments.

Wi-Fi ArrayIntroduction 15Key Features and BenefitsProduct Specifications—XS4/XS-3500Product Specifications—XS4/XS-3500Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?

Wi-Fi Array16 IntroductionKey Features and BenefitsThis section describes some of the key product features and the benefits you canexpect when deploying the Wi-Fi Array (the XN16 product is highlighted in thissection). High Capacity and High Performance Figure 7. Layout of IAPs (XN16)The XN16 version of the Wi-Fi Array (Figure 7) easily handles time-sensitivetraffic, such as voice, and can enable wireless connectivity for 1,024 users. Theunit includes two Gigabit uplink ports for connection to the wired network.A total of sixteen IAPs provides a maximum wireless capacity of 4.8 Gbps, whichoffers ample reserves for the high demands of current and future applications. Ofthe sixteen IAPs, twelve operate in the 802.11a/n mode in the 5 GHz band, andfour operate in the 802.11a/b/g/n mode, providing backwards compatibilitywith 802.11b and 802.11g in the 2.4 GHz band.an1abgn1an2an3an4abgn2 an5an6an7abgn3an8an9an10abgn4an11 an12Mode(s) IAP numberabgn2 (RF monitoring)

Wi-Fi ArrayIntroduction 17In the recommended configuration, IAP (radio) abg(n)2 is configured in RFmonitoring and rogue AP detection mode.Figure 8. Naming of IAPs (XS16)Extended CoverageOne XN16 solution enables you to replace up to sixteen access points (includesone omnidirectional IAP for monitoring the network). Fifteen IAP radios withintegrated directional antennas provide increased wireless range and enhanceddata rates in all directions. With a Wi-Fi Array deployed, far fewer access pointsare needed and wired-like resiliency is delivered throughout your wirelessnetwork. Your Wi-Fi Array deployment ensures:zContinuous connectivity if an IAP (radio) fails.zContinuous connectivity if an Array fails.zContinuous connectivity if a WDS link or switch fails.zContinuous connectivity if a Gigabit uplink or switch fails.a1 abg1a2a3a4abg2 a5a6a7abg3a8a9a10abg4 a11 a12Mode(s) IAP numberabg2 (RF monitoring)

Wi-Fi Array18 IntroductionFlexible Coverage SchemesYour Wi-Fi Array offers flexible coverage schemes for each wireless technology.Figure 9. Coverage Schemesz802.11a/n, 802.11aDelivers 60° wireless coverage per IAP, with 6 dBi of gain.z802.11b/g/n, 802.11b/gDelivers 180° wireless coverage, with 3 dBi of gain.z802.11a/b/g/n, 802.11a/b/g (monitor only)Delivers 360° wireless coverage, with 2 dBi of gain.Non-Overlapping ChannelsComplete use of non-overlapping channels limits interference and deliversmaximum capacity. On the XN16, up to 16 non-overlapping channels are fullyutilized across the 5GHz and 2.4GHz spectrums (up to 12 across the 5GHzspectrum plus up to 3 across the 2.4 GHz spectrum—typically, one additionalradio is used as a dedicated RF monitor).Secure Wireless AccessMultiple layers of authentication and encryption ensure secure datatransmissions. The Wi-Fi Array is 802.11i compliant with encryption support for40 bit and 128 bit WEP, WPA and WPA2 with TKIP and AES encryption.Authentication support is provided via 802.1x, including PEAP, EAP-TLS, EAP-TTLS, and LEAP (Lightweight Extensible Authentication Protocol) passthrough.802.11a/nMonitor only802.11a/b/g/n

Wi-Fi ArrayIntroduction 19Applications EnablementQoS (Quality of Service) functionality combined with true switch capabilitiesenable high density video and Voice over Wireless LAN deployments. Compliantwith 802.1p and 802.1Q standards. SDMA OptimizationSDMA (Spatial Division Multiple Access) technology provides full 360° coveragewhile allowing independent channel and power output customization. Alsosupports fast inter-zone handoffs for time-sensitive applications and roamingsupport.Fast RoamingUtilizes the Xirrus Roaming Protocol (XRP) ensuring fast and seamless roamingcapabilities between IAPs or Arrays at both Layer 2 and Layer 3.Easy DeploymentThe Xirrus Management System (XMS) offers real time monitoring andmanagement capabilities of the wireless network—ideal for the Enterprisemarket. It also allows you to import floor plans to help you plan yourdeployment. The Xirrus Wi-Fi Array chassis has a plenum rated, lockable andtamper resistant case.See AlsoWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XS4/XS-3500)Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?

Wi-Fi Array20 IntroductionProduct Specifications—XN16, XN12, and XN8)Element SpecificationsNumber of Users Maximum of 64 associated users per radio XN16: 1024 users per Array XN12: 768 users per Array XN8: 512 users per Array Physical Diameter: 18.65 inches (47.37 cm)Height: 3.87 inches (9.83 cm)Weight: 10 lbs (3.63 kg) Environmental Operating Temperature:0°C to 55°C0% to 90% relative humidity (non-condensing)Storage Temperature:-20°C to 60°C5% to 95% relative humidity (non-condensing)System 1 GHz CPU (XN16/XN12/XN8) 1 GB RAM (XN16/XN12/XN8)1 GB system flash Integrated Switch 2.1 Gbps integrated wireless switch Chassis Lockable mounting plate, Kensington lock slot

Wi-Fi ArrayIntroduction 21Electrical Each Array supports both AC and PoGE AC Input Power: 100-240VAC at 50-60 Hz PoGE (DC) Input Power: Power over Gigabit Ethernet—no splitter required, 48VDC, Maximum 2ANominal Power:XN16: 100W XN12: 90W XN8: 75W All Models:For PoGE, see “Power over Gigabit Ethernet Compatibility Matrix” on page 416.Interfaces Serial Console Port:1 x RS232 – RJ45 connector, for local configurationEthernet Interfaces:2 x Gigabit 100/1000 Mbps uplink ports for link aggregation, redundancy, or bridging 1 x Fast Ethernet 10/100 Mbps, for out of band managementStatus LEDs:System status, Ethernet, RadioNetworking DHCP client, DHCP server (multiple DHCP pools), DNS Client, NTP client, NAT Element Specifications

Wi-Fi Array22 IntroductionManagement Xirrus Management System (XMS)—Layer 3 Element Management SystemHTTPS Web Management Interface (WMI)CLI via SSHv2, Telnet, local serial ConsoleEnable/disable management for any interfaceRead-write and read-only admin accounts may be authenticated via RADIUSSNMP v1, v2c, v3Configuration Files—text-based files may be imported, exported, or comparedNetFlow—IP flow information (traffic statistics may be sent to an external CollectorFTP, TFTPSyslog reporting for alerts/alarms—messages may be stored on internal Syslog server or sent to up to three external syslog servers. Cisco Discovery Protocol (CDP)—obtain protocol addresses and platform information for neighboring devicesQuality of Service (QoS) Support Multiple SSIDs:16 unique SSIDs per ArrayEach SSID beacons a unique BSSID per radio VLAN and QoS settings for each SSIDVLANs:Up to 16 VLANs, 802.1Q, 802.1pPrioritization:802.11e wireless prioritization802.1p wired prioritizationFair queuing of downstream trafficWireless Voice Support:Spectralink Voice Priority (SVP) protocol Element Specifications

Wi-Fi ArrayIntroduction 23Security Wireless EncryptionLine speed, hardware-accelerated encryption modes:WPA TKIPWPA2 AESWEP 40/64WEP 104/128Wireless Authentication:OpenPre-shared Key802.1X EAPPEAPEAP-TLSEAP-TTLSEAP-LEAP Pass-throughWeb Page Redirect (Captive Portal)MAC Address Access Control List (ACL)Firewall:Integrated stateful-inspection, rules-based firewallIDS/IPS:Integrates with Xirrus XDM Intrusion Detection/ Prevention System for real-time wireless security protectionRogue AP detection and blocking:Integrated Rogue AP detection and alerting via dedicated internal RF Threat Sensor. Rogue AP can be shieldedIntegrated RADIUS Server:Integrated 802.1x Authentication Server supporting EAP-PEAPElement Specifications

Wi-Fi Array24 IntroductionSecurity (continued) Time of Day Access:Specify when SSID access is allowedStation-Station Blocking:Station-to-Station traffic blocking optionWireless Wireless Standards:802.11a802.11b802.11d802.11g802.11e802.11h802.11i802.11j802.11nNumber of Radios:XN16: 12 x 802.11a/n radios4 x 802.11b/g/n radiosOnly 12 radios should be used as 802.11a/n radios (i.e., 5 GHz band) concurrently.48 integrated antennasXN12: 8 x 802.11a/n radios4 x 802.11a/b/g/n radios36 integrated antennasXN8: 4 x 802.11a/n radios4 x 802.11a/b/g/n radios24 integrated antennasSpectrum Analyzer:1 integrated into ArrayElement Specifications

Wi-Fi ArrayIntroduction 25Wireless (continued) Frequency Bands: 11a/n: 4.945 – 4.985 (restricted Public Safety band)11a/n: 5.15-5.25 GHz (UNII 1)11a/n: 5.15-5.25 GHz (TELEC)11a/n: 5.25-5.35 GHz (UNII 2)11a/n: 5.470-5.725 (ETSI)11a/n: 5.725-5.825 GHz (UNII 3)11b/g/n: 2.412-2.462 GHz (FCC)11b/g/n: 2.412-2.472 GHz (ETSI)11b/g/n: 2.412-2.484 GHz (TELEC)Channel Selection:Manual and Automatic802.11a/n AntennasIntegrated 6dBi, sectorized802.11b/g/n AntennasIntegrated 3dBi, sectorizedWi-Fi Monitoring:1 Integrated Access Point can be set as a dedicated Wi-Fi Threat Sensor2 dBi 360° omni-directional antenna802.11a/b/g/n External Antenna Connectors:3 RP-TNC connectors Performance Client Load BalancingAutomatic load balancing between system radiosElement Specifications

Wi-Fi Array26 IntroductionSee AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN4 xxxxProduct Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Product Specifications—XS4/XS-3500Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?xxxxxCompliance Electromagnetic:ICES-003 (Canada)EN 301.893 (Europe)EN 301.489-1 and -17 (Europe)Safety:EN 60950EN 50371 to 50385CE MarkCertifications Wi-Fi Alliance: 802.11a/b/g, WPA, WPA2, andextended EAP types. Our certifications may beviewed here. Spectralink (Polycom) VIEW - operation with Spectralink Wi-Fi phones. Our certification may be viewed here. Warranty Hardware:Five Year Standard (extendable)Software:90 Days Standard (extendable)Element Specifications

Wi-Fi ArrayIntroduction 27Product Specifications—XN4 xxxx)Element SpecificationsNumber of Users Maximum of 64 associated users per radio XN4: 256 users per Array Physical Diameter: 12.58 inches (31.95 cm)Height: 2.58 inches (6.55 cm)Weight: 4lbs (1.81 kg) Environmental Operating Temperature:0°C to 55°C0% to 90% relative humidity (non-condensing)Storage Temperature:-20°C to 60°C5% to 95% relative humidity (non-condensing)System 1 GHz CPU 512 MB RAM 1 GB system flash Integrated Switch 2.1 Gbps integrated wireless switch Chassis Lockable mounting plate, Kensington lock slot Electrical XN4 supports Power over Gigabit Ethernet (PoGE) only, no splitter requiredPoGE (DC) Input Power: 48VDC, Maximum 2ANominal Power: 60 WFor PoGE, see “Power over Gigabit Ethernet Compatibility Matrix” on page 416.

Wi-Fi Array28 IntroductionInterfaces Serial Console Port:1 x RS232 – RJ45 connector, for local configurationEthernet Interfaces:1 x Gigabit 100/1000 Mbps uplink port Status LEDs:System status, Ethernet, RadioNetworking DHCP client, DHCP server (multiple DHCP pools), DNS Client, NTP client, NAT Management Xirrus Management System (XMS)—Layer 3 Element Management SystemHTTPS Web Management Interface (WMI)CLI via SSHv2, Telnet, local serial ConsoleEnable/disable management for any interfaceRead-write and read-only admin accounts may be authenticated via RADIUSSNMP v1, v2c, v3Configuration Files—text-based files may be imported, exported, or comparedNetFlow—IP flow information (traffic statistics may be sent to an external CollectorFTP, TFTPSyslog reporting for alerts/alarms—messages may be stored on internal Syslog server or sent to up to three external syslog servers. Cisco Discovery Protocol (CDP)—obtain protocol addresses and platform information for neighboring devicesElement Specifications

Wi-Fi ArrayIntroduction 29Quality of Service (QoS) Support Multiple SSIDs:16 unique SSIDs per ArrayEach SSID beacons a unique BSSID per radio VLAN and QoS settings for each SSIDVLANs:Up to 16 VLANs, 802.1Q, 802.1pPrioritization:802.11e wireless prioritization802.1p wired prioritizationFair queuing of downstream trafficWireless Voice Support:Spectralink Voice Priority (SVP) protocol Element Specifications

Wi-Fi Array30 IntroductionSecurity Wireless EncryptionLine speed, hardware-accelerated encryption modes:WPA TKIPWPA2 AESWEP 40/64WEP 104/128Wireless Authentication:OpenPre-shared Key802.1X EAPPEAPEAP-TLSEAP-TTLSEAP-LEAP Pass-throughWeb Page Redirect (Captive Portal)MAC Address Access Control List (ACL)Firewall:Integrated stateful-inspection, rules-based firewallIDS/IPS:Integrates with Xirrus XDM Intrusion Detection/ Prevention System for real-time wireless security protectionRogue AP detection and blocking:Integrated Rogue AP detection and alerting via dedicated internal RF Threat Sensor. Rogue AP can be shieldedIntegrated RADIUS Server:Integrated 802.1x Authentication Server supporting EAP-PEAPElement Specifications

Wi-Fi ArrayIntroduction 31Security (continued) Time of Day Access:Specify when SSID access is allowedStation-Station Blocking:Station-to-Station traffic blocking optionWireless Wireless Standards:802.11a802.11b802.11d802.11g802.11e802.11h802.11i802.11j802.11nNumber of Radios:XN4: 4 x 802.11a/b/g/n radios12 integrated antennas Spectrum Analyzer:1 integrated into ArrayElement Specifications

Wi-Fi Array32 IntroductionWireless (continued) Frequency Bands: 11a/n: 4.945 – 4.985 (restricted Public Safety band)11a/n: 5.15-5.25 GHz (UNII 1)11a/n: 5.15-5.25 GHz (TELEC)11a/n: 5.25-5.35 GHz (UNII 2)11a/n: 5.470-5.725 (ETSI)11a/n: 5.725-5.825 GHz (UNII 3)11b/g/n: 2.412-2.462 GHz (FCC)11b/g/n: 2.412-2.472 GHz (ETSI)11b/g/n: 2.412-2.484 GHz (TELEC)Channel Selection:Manual and Automatic802.11a/n AntennasIntegrated 6dBi, sectorized802.11b/g/n AntennasIntegrated 3dBi, sectorizedWi-Fi Monitoring:1 Integrated Access Point can be set as a dedicated Wi-Fi Threat Sensor2 dBi 360° omni-directional antenna802.11a/b/g/n External Antenna Connectors:1 RP-TNC connector Performance Client Load BalancingAutomatic load balancing between system radiosElement Specifications

Wi-Fi ArrayIntroduction 33See AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Product Specifications—XS4/XS-3500Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?Compliance Electromagnetic:ICES-003 (Canada)EN 301.893 (Europe)EN 301.489-1 and -17 (Europe)Safety:EN 60950EN 50371 to 50385CE MarkCertifications Wi-Fi Alliance: 802.11a/b/g, WPA, WPA2, andextended EAP types. Our certifications may beviewed here. Spectralink (Polycom) VIEW - operation with Spectralink Wi-Fi phones. Our certification may be viewed here. Warranty Hardware:Five Year Standard (extendable)Software:90 Days Standard (extendable)Element Specifications

Wi-Fi Array34 IntroductionProduct Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Element SpecificationsNumber of Users Maximum of 64 associated users per radio1024 users per Array (XS16/XS-3900)768 users per Array (XS12)512 users per Array (XS8/XS-3700)Physical Diameter: 18.65 inches (47.37 cm)Height: 3.87 inches (9.83 cm)Weight: 8lbs (3.63 kg) Environmental Operating Temperature:-10°C to 50°C0% to 90% relative humidity (non-condensing)Storage Temperature:-20°C to 60°C5% to 95% relative humidity (non-condensing)System XS16/XS12/XS8:1 GHz CPU 1 GB RAM 1 GB system flash Expansion slot for future optionsXS-3900/XS-3700:825 MHz CPU 512 MB RAM (XS-3900/XS-3700)512 MB system flash Expansion slot for future options

Wi-Fi ArrayIntroduction 35Interfaces Serial:1 x RS232 – RJ45 connectorEthernet Interfaces:2 x Gigabit 100/1000 Mbps w/failover1 x Fast Ethernet 10/100 MbpsStatus LEDs:System status, Ethernet, RadioElectrical XS16/XS12/XS8:Each Array supports both AC and PoGEAC Input Power: 90-265VAC at 47-63Hz PoGE Input Power: Power over Gigabit Ethernet—no splitter required, 48VDC XS-3900/XS-3700:Separate AC and DC versionsInput Power (AC version): 90VAC to 265VAC at 47Hz to 63Hz Input Power (DC version): 48VDCPoGE: requires modified DC version and splitter.All Models:For PoGE, see “Power over Gigabit Ethernet Compatibility Matrix” on page 416.Networking DHCP client, DHCP server, NTP client, NAT VLAN Support 802.1Q, 802.1p VLANSupports up to 16 VLANsMultiple SSID Support Allows up to 16 separate SSIDs to be defined with map security, VLAN and QoS settings for each SSIDElement Specifications

Wi-Fi Array36 IntroductionPerformance Client Load BalancingAutomatic load balancing between system radiosQuality of Service:802.1p wired traffic prioritizationWireless packet prioritizationMAP CoS to TCIDFair queuing of downstream trafficSecurity Wireless Security:WEP 40bit/128bit encryptionWPA and WPA2 with TKIP and AES encryptionRogue AP detection, with alerts and classificationUser and System Authentication:WPA and WPA2 Pre-Shared Key authenticationInternal RADIUS Server, supports EAP-PEAP only802.1x EAP-TLS802.1x EAP-TTLS/MSCHAPv2802.1x PEAPv0/EAP-MSCHAPv2802.1x PEAPv1/EAP-GTC802.1x EAP-SIM802.1x EAP-LEAP Passthrough External RADIUS serversAuthentication of Wi-Fi Arrays to the Xirrus Management System (XMS)Element Specifications

Wi-Fi ArrayIntroduction 37Wireless Number of Radios:XS16/XS-3900: 12 x 802.11a radios4 x 802.11a/b/g radiosOnly 12 radios should be used as 802.11a radios concurrently. XS12: 8 x 802.11a radios4 x 802.11a/b/g radiosXS8/XS-3700: 4 x 802.11a radios4 x 802.11a/b/g radiosWireless Standards:802.11a/b/g and g-only mode802.11e, 802.11iChannel Selection:Manual and AutomaticFrequency Bands: 11a: 4.945 – 4.985 (restricted Public Safety band)11a: 5.15-5.25 GHz (UNII 1)11a: 5.15-5.25 GHz (TELEC)11a: 5.25-5.35 GHz (UNII 2)11a: 5.470-5.725 (ETSI)11a: 5.725-5825 GHz (UNII 3)11b/g: 2.412-2.462 GHz (FCC)11b/g: 2.412-2.472 GHz (ETSI)11b/g: 2.412-2.484 GHz (TELEC)Antennas (XS16/XS-3900):12 x internal 6 dBi 60° 802.11a sectorized4 x internal 3 dBi 180° 802.11b/g sectorized1 x internal 2 dBi 360° omni-directional (for RF monitoring)3 x external RP-TNC connectors for three 802.11a/b/g radiosElement Specifications

Wi-Fi Array38 IntroductionWireless (continued) Antennas (XS12):8 x internal 6 dBi 60° 802.11a sectorized4 x internal 3 dBi 180° 802.11b/g sectorized1 x internal 2 dBi 360° omni-directional (for RF monitoring)3 x external RP-TNC connectors for three 802.11a/b/g radiosAntennas (XS8/XS-3700):4 x internal 6 dBi 60° 802.11a sectorized4x internal 3 dBi 180° 802.11b/g sectorized1 x internal 2 dBi 360° omni-directional (for RF monitoring)3 x external RP-TNC connectors for three 802.11a/b/g radiosRadio Approvals:FCC (United States) and EN 301.893 (Europe)Management Web-based HTTPSSNMP v2, v3CLI via SSHv2 or TelnetFTPTFTPSerialXirrus Management System (XMS)Syslog reporting for alerts/alarmsCompliance UL / cUL 60950 and EN 60950FCC Part 15.107 and 15109, Class AEN 301.489 (Europe)EN60601 EU medical equipment directive for EMCElement Specifications

Wi-Fi ArrayIntroduction 39See AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN4 xxxxProduct Specifications—XN16, XN12, and XN8Product Specifications—XS4/XS-3500Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?Product Specifications—XS4/XS-3500 Certifications Wi-Fi Alliance: 802.11a/b/g, WPA, WPA2, andextended EAP types. Our certifications may beviewed here. Spectralink (Polycom) VIEW - operation with Spectralink Wi-Fi phones. Our certification may be viewed here. Federal Information Processing Standard (FIPS) Publication 140 -2, Level 2. Warranty One year (hardware and software) Element SpecificationsNumber of Users Maximum of 64 associated users per radio (256 users per Array)Physical Diameter: 12.58 inches (31.95 cm)Height: 2.58 inches (6.55 cm)Weight: 4lbs (1.81 kg) Element Specifications

Wi-Fi Array40 IntroductionEnvironmental Operating Temperature:-10°C to 50°C0% to 90% relative humidity (non-condensing)Storage Temperature:-20°C to 60°C5% to 95% relative humidity (non-condensing)System 825 MHz CPU (XS4)666 MHz CPU (XS-3500)512 MB RAM, expandable (XS4)256 MB RAM, expandable (XS-3500)512 MB system flash, expandableExpansion slot for future optionsElectrical XS4: Each Array supports both AC and PoGEAC Input Power: 90-265VAC at 47-63Hz XS-3500: AC Input Power: 90-265VAC at 47-63Hz Input Power (DC version): 48VDCAll Models:Power over Gigabit Ethernet (PoGE): all 4-port models work with all Xirrus PoGE modules, splitter required, 48VDC See “Power over Gigabit Ethernet Compatibility Matrix” on page 416. Element Specifications

Wi-Fi ArrayIntroduction 41Interfaces Serial:1 x RS232 – RJ45 connectorEthernet Interfaces:1 x Gigabit 100/1000 MbpsStatus LEDs:System status, Ethernet, RadioManagement Web-based HTTPSSNMP v2, v3CLI via SSHv2 or TelnetFTPTFTPSerialXirrus Management System (XMS)Syslog reporting for alerts/alarmsNetworking DHCP client, DHCP server, NTP client, NATVLAN Support 802.1Q, 802.1p VLANSupports up to 16 VLANsMultiple SSID Support Allows up to 16 separate SSIDs to be defined with map security, VLAN and QoS settings for each SSIDPerformance Client Load BalancingAutomatic load balancing between system radiosQuality of Service:802.1p wired traffic prioritizationWireless packet prioritizationMAP CoS to TCIDFair queuing of downstream trafficElement Specifications

Wi-Fi Array42 IntroductionSecurity Wireless Security:WEP 40bit/128bit encryptionWPA and WPA2 with TKIP and AES encryptionRogue AP detection, with alerts and classificationUser and System Authentication:WPA Pre-Shared Key authenticationInternal RADIUS Server, supports EAP-PEAP only802.1x EAP-TLS802.1x EAP-TTLS/MSCHAPv2802.1x PEAPv0/EAP-MSCHAPv2802.1x PEAPv1/EAP-GTC802.1x EAP-SIM802.1x EAP-LEAP Passthrough External RADIUS serversAuthentication of Wi-Fi Arrays to the Xirrus Management System (XMS)Element Specifications

Wi-Fi ArrayIntroduction 43Wireless Number of Radios:4 x 802.11a/b/g radiosWireless Standards:802.11a/b/g and g-only mode802.11e, 802.11iChannel Selection:Manual and AutomaticFrequency Bands: 11a: 4.945 – 4.985 (restricted Public Safety band)11a: 5.15-5.25 GHz (UNII 1)11a: 5.15-5.25 GHz (TELEC)11a: 5.25-5.35 GHz (UNII 2)11a: 5.470-5.725 (ETSI)11a: 5.725-5825 GHz (UNII 3)11b/g: 2.412-2.462 GHz (FCC)11b/g: 2.412-2.472 GHz (ETSI)11b/g: 2.412-2.484 GHz (TELEC)Antennas (XS-3500):4 x internal 3 dBi 180° 802.11b/g sectorized1 x internal 2 dBi 360° omni-directional (for RF monitoring)1 x external RP-TNC connector for one 802.11a/b/g radioRadio Approvals:FCC (United States) and EN 301.893 (Europe)Compliance UL / cUL 60950 and EN 60950FCC Part 15.107 and 15109, Class AEN 301.489 (Europe)EN60601 EU medical equipment directive for EMCElement Specifications

Wi-Fi Array44 IntroductionSee AlsoKey Features and BenefitsWi-Fi Array Product OverviewProduct Specifications—XN16, XN12, and XN8Product Specifications—XN4 xxxxProduct Specifications—XS16/XS-3900, XS12, and XS8/XS-3700Power over Gigabit Ethernet (PoGE) (Optional)The Xirrus Family of ProductsWhy Choose the Xirrus Wi-Fi Array?Certifications Wi-Fi Alliance: 802.11a/b/g, WPA, WPA2, andextended EAP types. Our certifications may beviewed here. Spectralink (Polycom) VIEW - operation with Spectralink Wi-Fi phones. Our certification may be viewed here. Federal Information Processing Standard (FIPS) Publication 140 -2, Level 2. Warranty One year (hardware and software)Element Specifications

Wi-Fi ArrayInstalling the Wi-Fi Array 45Installing the Wi-Fi ArrayThe instructions for completing a successful installation include the followingtopics:z“Installation Prerequisites” on page 45.z“Planning Your Installation” on page 48.z“Installation Workflow” on page 80.z“Unpacking the Wi-Fi Array” on page 81.z“Installing Your Wi-Fi Array” on page 83.z“Powering Up the Wi-Fi Array” on page 107.z“Establishing Communication with the Array” on page 110.z“Performing the Express Setup Procedure” on page 112.Installation PrerequisitesYour Wi-Fi Array deployment requires the presence of hardware and services inthe host wired/wireless network, including:zPower Source Most Arrays are powered via Xirrus Power over Gigabit Ethernet. PoGEsupplies power over the same Cat 5e or Cat 6 cable used for data, thusreducing cabling and installation effort. PoGE power injector modules areavailable in 1 port and 8 port configurations and are typically placed nearyour Gigabit Ethernet switch. An AC outlet is required for each injectormodule. Current Array models have integrated splitters, so no separatesplitter is required. Specific models of the Array are compatible with specific PoGE modules.For details, please see “Power over Gigabit Ethernet CompatibilityMatrix” on page 416.If your Arrays are equipped to accept AC power (and you are not usingPoGE), you need a dedicated power outlet to supply AC power to eachunit deployed at the site.

Wi-Fi Array46 Installing the Wi-Fi ArrayzEthernet port You need at least one 100/1000 BaseT port to establish wired GigabitEthernet connectivity (via the product’s Gigabit 1 or Gigabit 2 port) andone 10/100 BaseT port (if desired) for product management. zSecure Shell (SSH) utilityTo establish secure remote command line access to the Array, you need aSecure Shell (SSH) utility, such as PuTTY. The utility must be configuredto use SSH-2, since the Array will only allow SSH-2 connections. zSecure Web browserEither Internet Explorer (version 6.0 or higher), Netscape Navigator(version 7.0 or higher), or Mozilla Firefox (version 1.01 or higher).A secure Web browser is required for Web-based management of theArray. The browser must be on the same subnet as the Array, or you mustset a static route for management as described in the warning above. zSerial connection capabilityTo connect directly to the console port on the Array, your computer mustbe equipped with a male 9-pin serial port and terminal emulationsoftware (for example, HyperTerminal). The Xirrus Array only supportsserial cable lengths up to 25’ per the RS-232 specification. !The Array’s Ethernet ports should be connected to an Ethernet switch, not an Ethernet hub—if a hub is used, we recommend that you connect only one Ethernet port.!The Gigabit1 Ethernet interface is the primary port for both data and management traffic. If a single Ethernet connection is used, it must be connected to the Gigabit1 Ethernet interface. See also, “Port Failover Protection” on page 67.The 10/100 Ethernet Port may be used for managing the Array out of band from the Gigabit Ethernet ports. The 10/100 port will route only management traffic, using a static route that may be configured for this interface. See “interface” on page 336.

Wi-Fi ArrayInstalling the Wi-Fi Array 47Use the following settings when establishing a serial connection:Optional Network ComponentsThe following network components are optional.zXirrus Management System (XMS)The optional XMS offers powerful management features for small or largeWi-Fi Array deployments.zExternal RADIUS serverAlthough your Array comes with an embedded RADIUS server, for802.1x authentication in large deployments you may want to add anexternal RADIUS server.Client RequirementsThe Wi-Fi Array should only be used with Wi-Fi certified client devices.See AlsoCoverage and Capacity PlanningDeployment ExamplesFailover PlanningPlanning Your InstallationBits per second 115,200Data bits 8Parity NoneStop bits 1Flow control None

Wi-Fi Array48 Installing the Wi-Fi ArrayPlanning Your InstallationThis section provides guidelines and examples to help you plan your Xirrus Wi-FiArray deployment to achieve the best overall coverage and performance. Werecommend you conduct a site survey to determine the best location and settingsfor each Array you install.The following topics are discussed:z“General Deployment Considerations” on page 48z“Coverage and Capacity Planning” on page 50z“IEEE 802.11n Deployment Considerations” on page 59z“Failover Planning” on page 67z“Power Planning” on page 69z“Security Planning” on page 70z“Port Requirements” on page 72z“Network Management Planning” on page 75z“WDS Planning” on page 76z“Deployment Summary” on page 79General Deployment ConsiderationsThe Wi-Fi Array’s unique multi-radio architecture generates 360 degrees ofsectored high-gain 802.11a/b/g/n or 802.11a/b/g coverage that providesextended range. However, the number, thickness and location of walls, ceilings orother objects that the wireless signals must pass through may affect the range.Typical ranges vary depending on the types of materials and background RF(radio frequency) noise at your location. To maximize wireless range, follow thesebasic guidelines:1. Keep the number of walls and ceilings between the Array and yourreceiving devices to a minimum—each wall or ceiling can reduce the#For a complete discussion of implementing Voice over Wi-Fi on the Array,see the Xirrus Voice over Wi-Fi Application Note in the Xirrus Library.

$Wi-Fi ArrayInstalling the Wi-Fi Array 49wireless range from between 3 and 90 feet (1 to 30 meters). Position yourdevices so that the number of walls or ceilings is minimized.2. Be aware of the direct line between each device. For example, a wall thatis 1.5 feet thick (half a meter) at 90° is actually almost 3 feet thick (or 1meter) when viewed at a 45° angle. At an acute 2° degree angle the samewall is over 42 feet (or 14 meters) thick! For best reception, try to ensurethat your wireless devices are positioned so that signals will travelstraight through a wall or ceiling.Figure 10. Wall Thickness Considerations3. Try to position wireless client devices so that the signal passes throughdrywall (between studs) or open doorways and not other materials thatcan adversely affect the wireless signal.See AlsoCoverage and Capacity PlanningDeployment ExamplesDeployment SummaryInstallation Prerequisites90° 45°1.5 feet/.5 m ~ 3 feet/1 m> 42 feet\14 m2°$

Cambium Networks XN12 WIRELESS LAN ARRAY User Manual

Xirrus, Inc. WIRELESS LAN ARRAY

Contents

A Pages 1 to 125 from ArrayGuide Rel4 SS Dec02 2008

Navigation menu

Namespaces

Views

Navigation