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Xirrus XN16 User Manual

Wi-fi array
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June 10, 2008

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Summary of Contents for Xirrus XN16

  • Page 1 June 10, 2008...
  • Page 3 Wi-Fi Array ™ XN16, XN8, XN4 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.
  • Page 4 Trademarks is a registered trademark of Xirrus, Inc. All other trademarks and brand names are marks of their respective holders. Notices FCC Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 5 Modifications to the device will void the warranty and may violate FCC regulations. Please go to the Xirrus Web site for a list of all approved antennas. Indoor Use This product has been designed for indoor use.
  • Page 6 Industry Canada Notice and Marking This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

  • Page 7: Eu Directive 1999/5/Ec Compliance Information

    EU Directive 1999/5/EC Compliance Information This section contains compliance information for the Xirrus Wi-Fi Array family of products, which includes the XN16, XN8, and XN4. The compliance information contained in this section is relevant to the European Union and other countries that have implemented the EU Directive 1999/5/EC.
  • Page 8 Italiano [Italian] Questo apparato é conforme ai requisiti essenziali ed agli altri principi sanciti dalla Direttiva 1999/5/CE. Šī iekārta atbilst Direktīvas 1999/5/EK būtiskajā Latviski [Latvian] prasībām un citiem ar to saistītajiem noteikumiem. įrenginys Lietuvių [Lithuanian] Šis tenkina 1995/5/EB Direktyvos esminius reikalavimus ir kitas šios direktyvos nuostatas.
  • Page 9 EMC: EN 301 489-1 and EN 301 489-17 Safety: EN 50371 to EN 50385 and EN 60601 CE Marking For the Xirrus Wi-Fi Array (XN16, XN8, XN4), the CE mark and Class-2 identifier opposite are affixed to the equipment and its packaging:...
  • Page 10 If you need more information on collection, re- use and recycling systems, please contact your local or regional waste administration. Please contact Xirrus for specific information on the environmental performance of our...
  • Page 11 **France is indoor use only in the upper end of the band. The requirements for any country may change at any time. Xirrus recommends that you check with local authorities for the current status of their national regulations for both 2.4 GHz and 5 GHz wireless LANs.
  • Page 12 Greece A license from EETT is required for the outdoor operation in the 5470 MHz to 5725 MHz band. Xirrus recommends checking www.eett.gr for more details. Η δη ιουργβάικτ ωνεξωτερικο ρουστη ζ νησυ νοτ των 5470–5725 ΜΗz ε ιτρ ετάιωνο...
  • Page 13 See National Restrictions in this section for more information. If you still have questions regarding the compliance of Xirrus products or you cannot find the information you are looking for, please contact us at: Xirrus, Inc. 370 North Westlake Blvd, Suite 200...

  • Page 14: Safety Warnings

    Lightning Activity Warning Do not work on the XN16/XN8/XN4 or connect or disconnect cables during periods of lightning activity. Circuit Breaker Warning The XN16/XN8/XN4 relies on the building’s installation for over...

  • Page 15: Translated Safety Warnings

    à moins que l'appareil n'ait été spécifiquement modifié pour un tel usage. Foudre N'utilisez pas l'unité XN16/XN8/XN4 et ne branchez pas ou ne débranchez pas de câbles en cas de foudre. Disjoncteur L'unité XN16/XN8/XN4 dépend de l'installation du bâtiment pour ce qui est de la protection contre les surintensités.

  • Page 16: Software Warranty And License Agreement

    Software covering the installation, application, and use thereof. 1.2 “Licensor” means XIRRUS and its suppliers. 1.3 “Product” means a multi-radio access point containing four or more distinct radios capable of simultaneous operation on four or more non- overlapping channels.
  • Page 17 Grant of Rights 2.1 Software. Subject to the terms and conditions of this Agreement, Licensor hereby grants Customer perpetual, non-exclusive, non- sublicenseable, non-transferable right and license to use the Software solely as installed on the Product in accordance with the accompanying Documentation and for no other purpose.
  • Page 18 2.4 Restrictions. Customer shall not itself, or through any parent, subsidiary, affiliate, agent or other third party (i) sell, rent, lease, license or sublicense, assign or otherwise transfer the Software, or any of Customer's rights and obligations under this Agreement except as expressly permitted herein;...
  • Page 19 3.2 DISCLAIMER. EXCEPT AS EXPRESSLY STATED IN THIS SECTION 3, ADDITIONAL CONDITIONS, REPRESENTATIONS, WARRANTIES, WHETHER IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES CONDITIONS MERCHANTABILITY, FITNESS PARTICULAR PURPOSE, SATISFACTORY QUALITY, ACCURACY, AGAINST INFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, TRADE...
  • Page 20 (b) DAMAGES. IN NO EVENT SHALL LICENSOR, ITS SUPPLIERS OR THEIR RELEVANT SUBCONTRACTORS BE LIABLE FOR (A) ANY INCIDENTAL, SPECIAL, PUNITIVE CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST OR DAMAGED DATA, OR ANY INDIRECT DAMAGES, WHETHER ARISING IN CONTRACT, TORT (INCLUDING NEGLIGENCE AND STRICT LIABILITY) OR OTHERWISE OR (B) ANY COSTS OR EXPENSES FOR THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES IN EACH CASE, EVEN IF LICENSOR OR ITS SUPPLIERS HAVE BEEN...
  • Page 21 Term and Termination 5.1 Term. Subject to Section 5.2 below, this Agreement will take effect on the Effective Date and will remain in force until terminated in accordance with this Agreement. 5.2 Termination Events. This Agreement may be terminated immediately upon written notice by either party under any of the following conditions: (a) If the other party has failed to cure a breach of any material term or...
  • Page 22 Miscellaneous If Customer is a corporation, partnership or similar entity, then the license to the Software and Documentation that is granted under this Agreement is expressly conditioned upon and Customer represents and warrants to Licensor that the person accepting the terms of this Agreement is authorized to bind such entity to the terms and conditions herein.

  • Page 23: Hardware Warranty Agreement

    AGREEMENT, RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND. LIMITED WARRANTY. Xirrus warrants that for a period of one year from the date of purchase by the original purchaser (“Customer”): (i) the Xirrus Equipment (“Equipment”) will be free of defects in materials and workmanship under normal use;...
  • Page 24 All information or feedback provided by Customer to Xirrus with respect to the Product shall be Xirrus' property and deemed confidential information of Xirrus.

  • Page 25: Table Of Contents

    Your User’s Guide as a PDF Document ............5 Hyperlinks ......................5 Window or Page? ....................5 Why Choose the Xirrus Wi-Fi Array? ..............6 Wi-Fi Array Product Overview ................7 Enterprise Class Security ................. 7 Wi-Fi Array Product Family ................8 Deployment Flexibility ..................
  • Page 26 Applications Enablement ................15 SDMA Optimization ..................15 Fast Roaming ....................15 Easy Deployment .................... 15 Product Specifications (XN16 and XN8) ............. 16 Product Specifications (XN4) ................21 Installing the Wi-Fi Array ..............27 Installation Prerequisites ..................27 Optional Network Components ..............29 Client Requirements ..................
  • Page 27 Securing the Array ................... 60 Dismounting the Array ................61 Mounting the Array on a Wall (XN16/XN8) ..........62 Kit Contents (Wall Mount Assembly - XN16 and XN8) ....62 Tools Required ..................62 Mark the Wall Position ................63 Install the SNAPTOGGLE™...
  • Page 28 Wi-Fi Array Using the Serial Port ..................76 Using the Ethernet Ports ................76 Logging In ......................76 Performing the Express Setup Procedure ............77 Procedure for Performing an Express Setup ..........78 The Web Management Interface ........... 83 An Overview ......................84 Structure of the WMI .....................
  • Page 29 Wi-Fi Array Signal-to-Noise Ratio (SNR) ................ 120 Noise Floor ..................... 122 Statistics Windows ....................124 IAP Statistics Summary ................124 Per-IAP Statistics ................... 125 Network Statistics ..................127 VLAN Statistics ..................... 128 WDS Statistics ....................129 Filter Statistics ....................130 Station Statistics ....................
  • Page 30 Wi-Fi Array Understanding SSIDs ................185 Understanding QoS Priority on the Wi-Fi Array ......186 SSID Management ..................189 SSID List (top of page) ................189 SSID Limits ..................... 192 Web Page Redirect Configuration Settings ........193 Groups ........................196 Understanding Groups .................
  • Page 31 Wi-Fi Array CLI .......................... 246 Logout ........................248 The Command Line Interface ............249 Establishing a Secure Shell (SSH) Connection ..........249 Getting Started with the CLI ................250 Inputting Commands ................... 250 Getting Help ....................250 Top Level Commands ..................252 Root Command Prompt ................
  • Page 32 Wi-Fi Array run-tests ......................280 security ......................282 snmp ....................... 283 ssh ........................284 ssid ........................285 standby ......................285 syslog ......................286 telnet ....................... 287 uptime ......................289 vlan ........................289 Sample Configuration Tasks ................291 Configuring a Simple Open Global SSID ..........292 Configuring a Global SSID using WPA-PEAP .........
  • Page 33 Wi-Fi Array Serial ......................323 Gigabit 1 and Gigabit 2 ................. 323 Fast Ethernet ................... 324 Integrated Access Points (IAPs) ..............325 Server Settings ....................325 NTP ......................325 Syslog ...................... 326 SNMP ...................... 326 DHCP ......................326 Default SSID ....................327 Security ......................
  • Page 34 Wi-Fi Array Table of Contents...

  • Page 35: List Of Figures

    Figure 29. Installing the Mounting Plate ..............57 Figure 30. Connecting the Cables ................58 Figure 31. Attaching the Unit (XN4) ................ 59 Figure 32. Securing the Array..................60 Figure 33. IAP Positions (XN16) ................61 Figure 34. Wall Mount—Marking the Holes............63 List of Figures...
  • Page 36 Figure 41. Attaching the Wall Mounting Bracket to the Wall ......71 Figure 42. Mounting the Array on a Wall ............... 72 Figure 43. LED Locations (XN16) ................73 Figure 44. Network Interface Ports................76 Figure 45. Express Setup .................... 77 Figure 46.
  • Page 37 Wi-Fi Array Figure 72. Station RSSI Values ................118 Figure 73. Station RSSI Values—Colorized Graphical View ......119 Figure 74. Station Signal-to-Noise Ratio Values........... 120 Figure 75. Station SNR Values—Colorized Graphical View ......121 Figure 76. Station Noise Floor Values ..............122 Figure 77.
  • Page 38 Wi-Fi Array Figure 109. Global Settings (Security) ..............174 Figure 110. External RADIUS Server ............... 177 Figure 111. Internal RADIUS Server ................ 180 Figure 112. Rogue Control List ................. 182 Figure 113. SSIDs......................184 Figure 114. Four Traffic Classes ................186 Figure 115.
  • Page 39 Wi-Fi Array Figure 146. Disabling Global IAPs................296 Figure 147. Enabling a Specific IAP................297 Figure 148. Disabling a Specific IAP................. 298 Figure 149. Setting the Cell Size for All IAPs............299 Figure 150. Setting the Cell Size for All IAPs............300 Figure 151.
  • Page 40 Wi-Fi Array List of Figures...

  • Page 41: Introduction

    Wi-Fi Array Introduction These topics introduce the Xirrus Wi-Fi Array, including an overview of its key features and benefits, and a detailed listing of the product’s physical, environmental, technology and regulatory specifications. “The Xirrus Family of Products” on page “About this User’s Guide” on page “Why Choose the Xirrus Wi-Fi Array?”...

  • Page 42: Figure 1. The Xirrus Management System

    Wi-Fi Array Figure 1. The Xirrus Management System If you need detailed information about this product, refer to the XMS User’s Guide, part number 800-0007-001. Xirrus Power over Gigabit Ethernet (PoGE) The PoGE modules eliminate the need for running separate power cabling.

  • Page 43: Nomenclature

    Wi-Fi Array Nomenclature Throughout this User’s Guide, the Xirrus Wi-Fi Array is also referred to as simply the Array. In some instances, the terms product and unit are also used. When discussing specific products from the Xirrus family, the product name is used (for example, XN16, XN8, XN4).
  • Page 44 Array-enabled wireless network. Also includes Frequently Asked Questions (FAQs) and Xirrus contact information. Glossary of Terms Provides an explanation of terms directly related to Xirrus product technology, organized alphabetically. Introduction...

  • Page 45: Notes And Cautions

    Wi-Fi Array Index The index is a valuable information search tool. Use the index to locate specific topics discussed in this User’s Guide. Simply click on any page number in the index to jump to the referenced topic. Notes and Cautions The following symbols are used throughout this User’s Guide: This symbol is used for general notes that provide useful supplemental information.

  • Page 46: Why Choose The Xirrus Wi-Fi Array

    Window when referring to how the Wi-Fi Array’s Web Management Interface is displayed on your monitor. Why Choose the Xirrus Wi-Fi Array? The deployment of wireless LANs is becoming increasingly common as businesses strive for greater flexibility in the workplace and the need for employee mobility rises.

  • Page 47: Wi-Fi Array Product Overview

    The Xirrus Family of Products Wi-Fi Array Product Overview Part of the family of Xirrus products, the Wi-Fi Array is a high capacity, multi- mode device designed for the Enterprise market, with twice the range and up to sixteen times the capacity of competitive wireless products.

  • Page 48: Wi-Fi Array Product Family

    RF spectrum analysis are performed in the background by the Array automatically. Wi-Fi Array Product Family The following table provides an overview of the main features supported by the Wi-Fi Array product family. Feature XN16 XN8, Number of 802.11 a/b/g/n radios Number of 802.11a/n radios...

  • Page 49: Deployment Flexibility

    Why Choose the Xirrus Wi-Fi Array? Deployment Flexibility Xirrus’ unique multi-radio architecture generates 360 degrees of sectored high- gain 802.11a/b/g/n coverage that provides extended range and the highest possible data rates for a large volume of clients. Each sector can be controlled automatically or manually, creating a pattern of wireless coverage perfectly tailored to individual customer needs.

  • Page 50: Power Over Gigabit Ethernet (Poge) (Optional)

    “Flexible Coverage Schemes” on page Power over Gigabit Ethernet (PoGE) (Optional) The Xirrus XP1 and XP8 Power over Gigabit Ethernet modules provide power to your Arrays over the same Cat 5e or Cat 6 cable used for data, eliminating the need to run power cables and provide an AC power outlet in close proximity to each unit.

  • Page 51: Enterprise Class Management

    Wi-Fi Array Product Specifications (XN16 and XN8) The Xirrus Family of Products Why Choose the Xirrus Wi-Fi Array? Enterprise Class Management The Wi-Fi Array can be configured with its default RF settings, or the RF settings can be customized using the Array’s embedded Web Management Interface (WMI).
  • Page 52 Xirrus Management System. For deployments of more than five Arrays, we recommend that you use the Xirrus Management System (XMS). The XMS offers a rich set of features for fine control over large deployments.

  • Page 53: Key Features And Benefits

    Wi-Fi Array Key Features and Benefits This section describes some of the key product features and the benefits you can expect when deploying the Wi-Fi Array (the XN16 product is highlighted in this section). High Capacity and High Performance The XN16 version of the Wi-Fi Array easily handles time-sensitive traffic, such as voice, and can enable wireless connectivity for 1,024 users.

  • Page 54: Extended Coverage

    Wi-Fi Array Extended Coverage One XN16 solution enables you to replace up to sixteen access points (includes one omnidirectional IAP for monitoring the network). Fifteen IAP radios with integrated directional antennas provide increased wireless range and enhanced data rates in all directions. With a Wi-Fi Array deployed, far fewer access points are needed and wired-like resiliency is delivered throughout your wireless network.

  • Page 55: Non-Overlapping Channels

    Non-Overlapping Channels Complete use of non-overlapping channels limits interference and delivers maximum capacity. On the XN16, up to 16 non-overlapping channels are fully utilized across the 5GHz and 2.4GHz spectrums (up to 12 across the 5GHz spectrum plus up to 3 across the 2.4 GHz spectrum—typically, one additional radio is used as a dedicated RF monitor).

  • Page 56: Product Specifications (Xn16 And Xn8)

    Wi-Fi Array See Also Wi-Fi Array Product Overview Product Specifications (XN4)) Product Specifications (XN16 and XN8) Power over Gigabit Ethernet (PoGE) (Optional) The Xirrus Family of Products Why Choose the Xirrus Wi-Fi Array? Product Specifications (XN16 and XN8) Element Specifications...
  • Page 57 System status, Ethernet, Radio Management Web-based HTTPS SNMP v2 CLI via SSHv2 or Telnet TFTP Serial Xirrus Management System (XMS) Syslog reporting for alerts/alarms Networking DHCP client, DHCP server, NTP client, NAT VLAN Support 802.1Q, 802.1p VLAN Supports up to 16 VLANs...
  • Page 58 User and System Authentication: WPA and WPA2 Pre-Shared Key authentication Internal RADIUS Server, supports EAP-PEAP only 802.1x EAP-TLS 802.1x EAP-TTLS/MSCHAPv2 802.1x PEAPv0/EAP-MSCHAPv2 802.1x PEAPv1/EAP-GTC 802.1x EAP-SIM 802.1x EAP-LEAP Passthrough External RADIUS servers Authentication of Wi-Fi Arrays to the Xirrus Management System (XMS) Introduction...
  • Page 59 11a: 5.15-5.25 GHz (UNII 1) 11a: 5.725-5825 GHz (UNII 3) 11b/g: 2.412-2.462 GHz (FCC) Antennas (XN16): 36 x internal 6 dBi 60° 802.11a/n sectorized 12 x internal 3 dBi 180° 802.11b/g/n sectorized 1 x internal 2 dBi 360° omni-directional (for RF...
  • Page 60 FCC Part 15.107 and 15109, Class B One year (hardware and software) Warranty See Also Key Features and Benefits Wi-Fi Array Product Overview Product Specifications (XN4) Power over Gigabit Ethernet (PoGE) (Optional) The Xirrus Family of Products Why Choose the Xirrus Wi-Fi Array? Introduction...

  • Page 61: Product Specifications (Xn4)

    Electrical XN4: Each Array supports both AC and PoGE AC Input Power: 90-265VAC at 47-63Hz Power over Gigabit Ethernet (PoGE): all 4-port models work with all Xirrus PoGE modules, splitter required, 48VDC Interfaces Serial: 1 x RS232 – RJ45 connector...
  • Page 62 Specifications Management Web-based HTTPS SNMP v2 CLI via SSHv2 or Telnet TFTP Serial Xirrus Management System (XMS) Syslog reporting for alerts/alarms Networking DHCP client, DHCP server, NTP client, NAT VLAN Support 802.1Q, 802.1p VLAN Supports up to 16 VLANs Multiple SSID...
  • Page 63 User and System Authentication: WPA Pre-Shared Key authentication Internal RADIUS Server, supports EAP-PEAP only 802.1x EAP-TLS 802.1x EAP-TTLS/MSCHAPv2 802.1x PEAPv0/EAP-MSCHAPv2 802.1x PEAPv1/EAP-GTC 802.1x EAP-SIM 802.1x EAP-LEAP Passthrough External RADIUS servers Authentication of Wi-Fi Arrays to the Xirrus Management System (XMS) Introduction...
  • Page 64 FCC Part 15.107 and 15109, Class B Warranty One year (hardware and software) See Also Key Features and Benefits Wi-Fi Array Product Overview Product Specifications (XN16 and XN8) Power over Gigabit Ethernet (PoGE) (Optional) The Xirrus Family of Products Why Choose the Xirrus Wi-Fi Array? Introduction...
  • Page 65 Wi-Fi Array Introduction...
  • Page 66 Wi-Fi Array Introduction...

  • Page 67: Installing The Wi-Fi Array

    Dedicated AC power outlet Unless you are using Xirrus PoGE, you need a dedicated power outlet to supply AC power to each unit deployed at the site. If you are using the optional PoGE, then power is supplied over the same Cat 5e or Cat 6 cable used for data.
  • Page 68 To connect directly to the console port on the Array, your computer must be equipped with a male 9-pin serial port and terminal emulation software (for example, HyperTerminal). The Xirrus Array only supports serial cable lengths up to 25’ per the RS-232 specification.

  • Page 69: Optional Network Components

    The optional XMS offers powerful management features for small or large Wi-Fi Array deployments. Xirrus Power over Gigabit Ethernet (PoGE) The optional Power over Gigabit Ethernet (PoGE) modules allow you to provide power the Array without running power cables. The 8 Port...

  • Page 70: Planning Your Installation

    Wi-Fi Array Planning Your Installation This section provides guidelines and examples to help you plan your Xirrus Wi-Fi Array deployment to achieve the best overall coverage and performance. We recommend you conduct a site survey to determine the best location and settings for each Array you install.
  • Page 71 Wi-Fi Array Try to position wireless client devices so that the signal passes through drywall (between studs) or open doorways and not other materials that can adversely affect the wireless signal. See Also Coverage and Capacity Planning Deployment Examples Deployment Summary Installation Prerequisites Installing the Wi-Fi Array...

  • Page 72: Coverage And Capacity Planning

    Wi-Fi Array Coverage and Capacity Planning This section considers coverage and capacity for your deployment(s), including placement options, RF patterns and cell sizes, area calculations, roaming considerations, and channel allocations. Placement Use the following guidelines when considering placement options: The best placement option for the Array is ceiling-mounted within an open plan environment (cubicles rather than fixed walls).

  • Page 73: Rf Patterns

    Wi-Fi Array RF Patterns The Wi-Fi Array allows you to control—automatically or manually—the pattern of wireless coverage that best suits your deployment needs. You can choose to operate with full coverage, half coverage, or custom coverage (by enabling or disabling individual sectors). Full (Normal) Coverage In normal operation, the Array provides a full 360 degrees of coverage.

  • Page 74: Capacity And Cell Sizes

    Wi-Fi Array Custom Coverage Where there are highly reflective objects in close proximity to the Array, you can turn off specific radios to avoid interference and feedback. reflective object Figure 12. Custom Coverage Capacity and Cell Sizes Cell sizes should be estimated based on the number of users, the applications being used (for example, data/video/voice), and the number of Arrays available at the location.

  • Page 75: Fine Tuning Cell Sizes

    Wi-Fi Array Figure 13 shows some sample maximum connection rates for the XN8 and XN16 at different distances in an unobstructed area. Wireless environments can vary greatly so the actual rates may be different depending on the specific network deployment.

  • Page 76: Roaming Considerations

    Wi-Fi Array boundary (cell size) the trailing edge bleed of RF energy. To enable the Sharp Cell feature, go to “Global Settings (IAP)” on page 209. Roaming Considerations Cells should overlap approximately 10 - 15% to accommodate client roaming. R O A M I N G 10 - 15% overlap Figure 15.

  • Page 77: Figure 16. Allocating Channels Manually

    Wi-Fi Array Manual Channel Selection You can manually assign channels on a per radio basis, though manual selection is not recommended (and not necessary). To avoid co-channel interference, do not select adjacent channels for radios that are physically next to each other. Maintain channel separation Figure 16.

  • Page 78: Deployment Examples

    Wi-Fi Array Deployment Examples The following examples employ 802.11a cells, each offering minimum throughputs of 54 Mbps, 36 Mbps, and 18 Mbps per sector respectively, and assume a floor plan covering a total area of about 60,000 square feet (5574 sq m). Figure 17.

  • Page 79: Figure 19. Deployment Scenario (18 Mbps)-Per Sector

    Wi-Fi Array Figure 19. Deployment Scenario (18 Mbps)—Per Sector See Also Coverage and Capacity Planning Failover Planning Planning Your Installation Installing the Wi-Fi Array...

  • Page 80: Failover Planning

    Wi-Fi Array Failover Planning This section discusses failover protection at the unit and port levels. Port Failover Protection To ensure that service is continued in the event of a port failure, you can utilize the Gigabit 1 and Gigabit 2 ports simultaneously. Multiple port connections Ethernet switch Figure 20.

  • Page 81: Switch Failover Protection

    Wi-Fi Array Switch Failover Protection To ensure that service is continued in the event of a switch failure, you can connect Arrays to more than one Ethernet switch (not a hub). Ethernet connections Ethernet switch Backup switch Figure 21. Switch Failover Protection Gigabit Ethernet connections must be on the same subnet.

  • Page 82: Power Planning

    Wi-Fi Array Power Planning The XN8 and XN16 Array models and all four-port Arrays support both AC power and Power over Gigabit Ethernet (PoGE). This section discusses the AC and PoGE power options. AC Power The AC power option requires a direct connection between the Array and a dedicated AC power outlet.

  • Page 83: Authentication

    802.1x uses a remote RADIUS server to authenticate large numbers of clients, and can handle different authentication methods (EAP-TLS, EAP- TTLS, EAP-PEAP, and EAP-LEAP Passthrough). Xirrus Internal RADIUS server Recommended for smaller numbers of users (about 100 or less). Supports EAP-PEAP only...
  • Page 84 Wi-Fi Array See Also Failover Planning Network Management Planning Power Planning Installing the Wi-Fi Array...

  • Page 85: Network Management Planning

    (one or two units). Centralized Web-based management, using the optional Xirrus Management System (XMS), which can be run on a dedicated Xirrus appliance (XM-3300) or your own server. The XMS is used for managing...

  • Page 86: Wi-Fi Array

    Wi-Fi Array WDS Planning WDS (Wireless Distribution System) creates wireless backhauls between arrays, allowing your wireless network to be expanded using multiple Arrays without the need for a wired backbone to link them (see Figure 22). WDS features include: One to three IAPs may be used to form a WDS link, yielding up to 162 Mbps bandwidth per link.

  • Page 87: Figure 24. Wds Failover Protection

    Wi-Fi Array Multiple WDS links can provide link redundancy (failover capability - see Figure 24). A network protocol (Spanning Tree Protocol—STP) prevents Arrays from forming network loops. Figure 24. WDS Failover Protection WDS links have a Host/Client relationship similar to the usual IAP/station pattern for Arrays: A WDS Client Link associates/authenticates to a host (target) Array in the same way that a station associates to an IAP.

  • Page 88: Deployment Summary

    Wi-Fi Array Deployment Summary The following table summarizes your deployment options. Number of Wi-Fi Arrays Function One or Two Three or More Power Power over Gigabit Power over Gigabit Ethernet Ethernet UPS backup (recommended) Failover Recommended Highly recommended VLANs Optional Optional use, Can be used to put all APs on one VLAN or map to...

  • Page 89: Installation Workflow

    Wi-Fi Array Installation Workflow This workflow illustrates the steps that are required to install and configure your Wi-Fi Array successfully. Review this flowchart before attempting to install the unit on a customer’s network. Determine the number of Arrays needed Choose the location(s) for your Wi-Fi Arrays PoGE AC or PoGE? Run Ethernet cables (<100m total...

  • Page 90: Unpacking The Wi-Fi Array

    Failover Planning Installation Prerequisites Planning Your Installation Power Planning Wi-Fi Array Product Overview Product Specifications (XN16 and XN8) Product Specifications (XN4) Security Planning Unpacking the Wi-Fi Array When you unpack your Wi-Fi Array, you will find the following items in the...
  • Page 91 Wi-Fi Array Item Quantity CD-ROM containing: This User’s Guide in PDF format End User License Agreement (EULA) README file Quick Install Guide Registration Card See Also Installation Prerequisites Installation Workflow Installing the Wi-Fi Array...

  • Page 92: Installing Your Wi-Fi Array

    You also have the option of mounting the Array on a wall, using the optional wall mount assembly kit. For wall mount instructions, go to “Mounting the Array on a Wall (XN16/XN8)” on page Choose a location that is central to your users (see the following diagram for correct placement.

  • Page 93: Wiring Considerations

    Wi-Fi Array Wiring Considerations Unless you are using the Xirrus Power over Gigabit Ethernet modules (PoGE) with an Array that supports PoGE, an AC power outlet must be available to the Array. If you are using PoGE to distribute power, see “Power over Gigabit...

  • Page 94: Mounting The Array On A Ceiling

    Failover Planning Installation Prerequisites Installation Workflow Mounting the Wi-Fi Array on a Wall (XN4) Mounting the Array on a Wall (XN16/XN8) Mounting the Array on a Ceiling Power over Gigabit Ethernet (PoGE) (Optional) Unpacking the Wi-Fi Array Mounting the Array on a Ceiling Most offices have drop-down acoustical ceiling tiles set into a standard grid.

  • Page 95: Attaching The T-Bar Clips To The Template

    Wi-Fi Array Attaching the T-Bar Clips to the Template The T-bar clips are used to create four mounting points on the ceiling tile grid for the Array mounting plate. Use the mounting template (provided) to find the correct location for all four clamps by pre-loading the 4 T-bar clips through the holes in the mounting template.

  • Page 96: Figure 28. Attaching The T-Bar Clips To The Ceiling Grid

    Wi-Fi Array Disengage the template from the screw posts (4 places) and remove the template from the ceiling. Template Ceiling tile grid T-bar clips (4 places) Tighten the screw post Figure 28. Attaching the T-Bar Clips to the Ceiling Grid Installing the Wi-Fi Array...

  • Page 97: Installing The Mounting Plate

    Wi-Fi Array Installing the Mounting Plate Locate the mounting plate on the four screw posts. Secure the plate to the four clamps using the nuts provided. Tighten the nuts to 10-12 lbf.ft (1.38-1.66 kgf.m), but do not overtighten. Cut an access hole for the cables in the ceiling tile. Tile grid Mounting Plate Figure 29.

  • Page 98: Connecting The Cables

    Wi-Fi Array Connecting the Cables Feed the power and Ethernet cables through the access hole in the tile and the mounting plate, then connect the cables to the unit. See also, “Wiring Considerations” on page Figure 30. Connecting the Cables When the cables are connected, turn on the power switch—before attaching the unit to the mounting plate (next step).

  • Page 99: Attaching The Array To The Mounting Plate (Xn16/Xn8/Xn4)

    Wi-Fi Array Attaching the Array to the Mounting Plate (XN16/XN8/XN4) Align the Array with the key post on the mounting plate, then turn the Array to the right to lock the unit into place at the 4 lugs—similar to a smoke detector.

  • Page 100: Securing The Array

    Array” on page See Also Installation Workflow Installing Your Wi-Fi Array Mounting the Wi-Fi Array on a Wall (XN4) Mounting the Array on a Wall (XN16/XN8) Mounting the Array on a Ceiling Powering Up the Wi-Fi Array Installing the Wi-Fi Array...

  • Page 101: Dismounting The Array

    Figure 33. IAP Positions (XN16) See Also Installation Workflow Installing Your Wi-Fi Array Mounting the Wi-Fi Array on a Wall (XN4) Mounting the Array on a Wall (XN16/XN8) Mounting the Array on a Ceiling Securing the Array Installing the Wi-Fi Array...

  • Page 102: Mounting The Array On A Wall (Xn16/Xn8)

    Wi-Fi Array Mounting the Array on a Wall (XN16/XN8) This procedure is applicable to the Wi-Fi Array’s 16-radio models (XN16) and 8- radio models (XN8). If you are mounting a 4 radio model, go to “Mounting the Wi-Fi Array on a Wall (XN4)” on page The wall mounting assembly kit is used to mount the Wi-Fi Array (16-radio or 8-radio models) on a wall, instead of the traditional ceiling mount—if mounting...

  • Page 103: Mark The Wall Position

    Wi-Fi Array Mark the Wall Position Use the Wall Mounting Bracket as a template and mark the locations on the wall for the mounting holes. Mark holes (5 places) Figure 34. Wall Mount—Marking the Holes When marking the holes, ensure that the mounting plate is level—you may need assistance.

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Xn4Xn8

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