User’s Guide XS 3900/3700 Wireless LAN Array DRAFT RELEASE (C) April 12th, 2005
Wireless LAN Array XS-3900, XS-3700, XS-3500 All rights reserved. This document may not be reproduced or disclosed in whole or in part by any means without the written consent of Xirrus, Inc. Part Number: 800-0006-001 (Rev. A) Copyright © 2005 Xirrus, Inc. 370 North Westlake Blvd, Suite 200 Westlake Village, CA 91362 USA www.xirrus.
Trademarks is a trademark of Xirrus, Inc. All other trademarks and brand names are marks of their respective holders. Notices FCC Notice This device complies with Part 15 of the FCC Rules, with operation subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause unwanted operation.
Maximum Antenna Gain Currently, the maximum antenna gain is limited to 6dBi for operation in the 5250MHz to 5350MHz band and 5725MHz to 5825MHz band and must not exceed maximum EIRP limits set by the FCC / Industry Canada. High Power Radars High power radars are allocated as primary users (meaning they have priority) in the 5250MHz to 5350MHz and 5650MHz to 5850MHz bands. These radars could cause interference and/or damage to LELAN devices used in Canada.
Translated Safety Warnings Avertissements de Sécurité ! ! ! ! Sécurité Lisez l'ensemble de la documentation utilisateur avant de mettre cet appareil sous tension. Tous les équipements Xirrus interconnectés doivent être installés en intérieur. Ce produit n'est pas conçu pour être utilisé en extérieur. Veuillez vérifier l'intégrité de la terre du système avant d'installer des équipements Xirrus. Vérifiez également que la température de fonctionnement ambiante n'excède pas 50°C.
Software License Agreement PLEASE READ THIS SOFTWARE LICENSE AGREEMENT CAREFULLY BEFORE DOWNLOADING OR USING THE SOFTWARE. BY USING ANY LICENSED MATERIALS OR THE EQUIPMENT THAT CONTAINS THIS PRODUCT, YOU ACKNOWLDEGE THAT YOU HAVE READ AND UNDERSTOOD ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT AND THAT YOU ARE CONSENTING TO BE BOUND BY THIS AGREEMENT. IF YOU DO NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.
Customer grants to Xirrus or its independent accountants the right to examine its books, records and accounts during Customer's normal business hours to verify compliance with the above provisions. In the event such audit discloses that the Permitted Number of Computers is exceeded, Customer shall promptly pay to Xirrus the appropriate license fee for the additional computers or users. At Xirrus' option, Xirrus may terminate this license for failure to pay the required license fee.
This warranty does not apply if the software (a) has been altered, except by Xirrus, (b) has not been installed, operated, repaired, or maintained in accordance with instructions supplied by Xirrus, (c) has been subjected to abnormal physical or electrical stress, misuse, negligence, or accident, or (d) is used in ultrahazardous activities. DISCLAIMER.
This License shall be governed by and construed in accordance with the laws of the State of California, United States of America, as if performed wholly within the state and without giving effect to the principles of conflict of law. Customer may not assign or transfer any of its rights or delegate any of its obligations under this agreement.
Wireless LAN Array Table of Contents All topics listed in this Table of Contents are “clickable,” which means you can instantly jump to any selected topic with a click of your mouse button. Items that do not appear in the TOC list—they are part of the Front Matter, prior to this Table of Contents—include the following: z z z z z Trademarks Notices Safety Warnings Translated Safety Warnings Software License Agreement List of Figures..........................................................................
Wireless LAN Array Applications Enablement .............................................................................. 12 SDMA Optimization ...................................................................................... 12 Easy Deployment ............................................................................................ 12 Product Specifications (XS-3900) ......................................................................... 13 Installing the XS-3900 .................................
Wireless LAN Array Wiring Considerations ............................................................................ 37 Mounting the Unit .......................................................................................... 38 Attaching the T-Bar Clips ....................................................................... 39 Installing the Mounting Plate ................................................................ 40 Connecting the Cables ..........................................................
Wireless LAN Array Global Settings .11bg ............................................................................... 86 IAP LED Settings ..................................................................................... 88 Statistics ..................................................................................................... 89 Statistics (for specific radios) .................................................................. 90 SSID Management ...............................................
Wireless LAN Array Interface Selection ......................................................................................... 121 Interface Configuration ................................................................................ 122 Radio Configuration ..................................................................................... 126 Beacon Information ...................................................................................... 136 System Administration ............................
Wireless LAN Array SNMP .............................................................................................................. 181 Default SSID .................................................................................................. 182 Encryption ...................................................................................................... 182 Administrator Account and Password ...................................................... 183 Management ..................................
Wireless LAN Array List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Adobe Acrobat (Version 6 and above) .................................................... 4 XS-3900 ...........
Wireless LAN Array Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Figure 48. Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56. Figure 57. Figure 58. Figure 59. Figure 60. Figure 61. Figure 62. Figure 63. Figure 64. Figure 65. Figure 66. Figure 67. Figure 68. Figure 69. Figure 70. Figure 71. viii Enabling the NTP Feature .......................................................
Wireless LAN Array Figure 72. Figure 73. Figure 74. Figure 75. Figure 76. Figure 77. Figure 78. Figure 79. Figure 80. Figure 81. WMI: Create/Delete Admin Page........................................................ 108 WMI: Edit Admin Page ......................................................................... 109 WMI: Users Page .................................................................................... 110 WMI: Services Page .....................................................................
Wireless LAN Array x List of Figures
Wireless LAN Array Introduction This chapter introduces the Wireless LAN Array, including an overview of its key features and benefits, and a detailed listing of the product’s physical, environmental, technology and regulatory specifications.
Wireless LAN Array Nomenclature Throughout this User’s Guide, the Wireless LAN Array is also referred to as the XS-3900, or simply the XS. In some instances, the terms product, unit, array, or Xirrus array are also used. When discussing wireless network environments in which the XS is employed, the most commonly used reference is the system. The Xirrus Wireless Management System (XM-3300) and the Xirrus Remote DC Power System (XP-3100) are referred to as the XM-3300 and XP-3100, or XM and XP respectively.
Wireless LAN Array z Configuring the XS-3900 Contains procedures for configuring the XS-3900 using its embedded Web Management Interface. It also includes instructions for logging in to the XS-3900 with your Web browser, and procedures for upgrading the system firmware and resetting the XS-3900 to its factory defaults.
Wireless LAN Array 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. This symbol is used for cautions. Cautions provide critical information that may adversely affect the performance of the product. Screen Images Some screen images of the Web Management Interface have been modified for clarity.
Wireless LAN Array Why Choose the Wireless LAN Array? In 2003 there were approximately 30,000 Wireless Local Area Networks (WLANs) operating in the public domain. Research suggests that the number will more than quadruple by 2006. Enterprise WLANs in the private sector are also becoming increasingly common as businesses strive for greater flexibility in the workplace and the need for employee mobility rises.
Wireless LAN Array Product Overview Part of the family of Xirrus products, the Wireless LAN Array (XS-3900) is a high capacity, multi-mode WLAN array designed for the Enterprise market, with twice the range and up to sixteen times the capacity of competitive wireless products. Figure 2. XS-3900 The XS-3900 is Wi-Fi® compliant and simultaneously supports 802.11a, 802.11b and 802.11g clients.
Wireless LAN Array Deployment Flexibility Xirrus’ unique multi-radio architecture generates 360 degrees of sectored highgain 802.11a/b/g 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. For example: outside wall Figure 3.
Wireless LAN Array Remote DC Power System (Optional) The Xirrus Remote DC Power System (XP-3100) provides distributed DC power to your XS-3900 (DC version) deployments, eliminating the need to provide an AC power outlet in close proximity to the unit(s). In the following example, DC power is supplied to four Xirrus Arrays while utilizing only one AC power outlet. AC Input to XP-3100 XP-3100 DC Output to Xirrus Arrays Figure 4.
Wireless LAN Array Enterprise Class Management The XS-3900 can be configured with its default RF settings, or the RF settings can be customized using the array’s embedded Web Management Interface (WMI). The WMI enables easy configuration and control from a graphical console, along with a full compliment of troubleshooting tools, reports and statistics. Figure 5.
Wireless LAN Array Key Features and Benefits This section describes some of the key product features and the benefits you can expect when deploying the XS-3900. High Capacity and High Performance The XS-3900 easily handles time-sensitive traffic, such as voice, and can enable wireless connectivity for nearly 1,000 users. The unit includes two Gigabit uplink ports for connection to the wired network.
Wireless LAN Array Extended Coverage One XS-3900 solution enables you to replace up to sixteen access points—fifteen IAP radios with integrated directional antennas provide increased wireless range and enhanced data rates in all directions. With an XS deployed, far fewer access points are needed for your wireless network. Radio abg2 (see Figure 6) can be switched to use an integrated omnidirectional antenna—for listening only—and can be dedicated to the tasks of site monitoring and rogue AP detection.
Wireless LAN Array Non-Overlapping Channels Complete use of non-overlapping channels limits interference and delivers maximum capacity. On the XS-3900, all 16 non-overlapping channels are fully utilized across the 5Ghz and 2.4Ghz spectrums (12 across the 5GHz spectrum and 4 across the 2.4GHz spectrum). Secure Wireless Access Multiple layers of authentication and encryption ensure secure data transmissions. The XS-3900 is 802.11i compliant with encryption support for 64 bit and 128 bit WEP, TKIP and AES.
Wireless LAN Array Product Specifications (XS-3900) Element Specifications Number of Users Maximum of 64 associated users per radio 1024 users per array Physical Diameter: 12.9 inches (32.77 cm) Height: 2.53 inches (6.43 cm) Weight: 8lbs (3.
Wireless LAN Array Element Specifications Management Web-based HTTPS SNMP v3 CLI via SSHv2 FTP TFTP Serial Proprietary Xirrus Wireless Management System Syslog reporting for alerts/alarms Networking DHCP client, DHCP server, NTP client RFC VLAN Support 802.
Wireless LAN Array Element Security Specifications Wireless Security: WEP 40bit/128bit encryption WPA with TKIP and AES encryption Misappropriated APs automatically reset to factory defaults (requires the Xirrus Wireless Management System) Rogue AP detection, with alerts and classification Denial of Service (DoS) attack detection MAC address spoofing prevention User and System Authentication: WPA Pre-Shared Key authentication Embedded RADIUS Server 802.1x EAP-TLS 802.1x EAP-TTLS 802.
Wireless LAN Array Element Wireless Specifications Number of Radios: 12 x 802.11a radios 4 x 802.11a/b/g radios Wireless Standards: 802.11a/b/g and g-only mode 802.11d, 802.11e (draft), 802.11i Channel Selection: Manual Automatic Frequency Bands: 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.
Wireless LAN Array Installing the XS-3900 This chapter defines the prerequisites for installing the XS-3900 and provides instructions to help you complete a successful installation. Section headings for this chapter include: z Installation Prerequisites z Planning Your Installation z Installation Workflow z Unpacking the XS-3900 z Installing the XS-3900 z Powering Up the XS-3900 z Performing the Express Setup Procedure z This ends the Express Setup procedure.
Wireless LAN Array z Secure Web browser Either Internet Explorer (version 6.0 or higher), Netscape Navigator (version 7.0 or higher), or Mozilla Firefox (version 1.01 or higher) and it must be available on the same subnet as the XS-3900. A secure Web browser is required for Web-based management of the XS-3900.
Wireless LAN Array Optional Network Components The following network components are optional. z DHCP server To distribute IP addresses and ancillary information to your XS-3900. z Xirrus Wireless Management System (XM-3300) The optional XM-3300 offers powerful management features for small or large XS-3900 deployments.
Wireless LAN Array Planning Your Installation This section provides guidelines and examples to help you plan your XS-3900 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 XS-3900 unit you install. General Deployment Considerations The XS-3900’s unique multi-radio architecture generates 360 degrees of sectored high-gain 802.11a/b/g coverage that provides extended range.
Wireless LAN Array 3. Building materials can make all the difference. For example, solid metal doors or aluminum wall studs may adversely effect wireless signals. Try to position wireless client devices so that the signal passes through drywall (between studs) or open doorways and not other materials.
Wireless LAN Array RF Patterns The XS-3900 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 XS-3900 provides a full 360 degrees of coverage. Figure 10.
Wireless LAN Array Custom Coverage Where there are highly reflective objects in close proximity to the XS-3900, you can turn off specific radios to avoid interference and feedback. reflective object Figure 12. Custom Coverage Calculating Areas Before we discuss cell sizes, it is useful to know how to calculate the area of a circle (because the XS-3900 radiates a full 360 degrees). The area of a circle is equal to pi (π) times the square of the radius, where pi is equal to 3.14.
Wireless LAN Array Capacity and Cell Sizes Cell sizes should be calculated based on the number of users, the applications being used (for example, data/video/voice), and the number of XS-3900 units available at the location. The capacity of a cell is defined as the minimum data rate desired for each sector multiplied by the total number of sectors being used. The following chart shows the maximum recommended cell sizes for each data rate. Min.
Wireless LAN Array Sample 802.11a Cells The following 802.11a sample cells illustrate the coverage area and minimum throughput you can expect (per sector) based on the size of each cell. Notice how the throughput increases as the cell size decreases, and vice versa. 68 ft 14,520 sq ft 54 Mbps per sector 98 ft 30,157 sq ft 36 Mbps per sector 165 ft 85,487 sq ft 18 Mbps per sector Figure 14. Sample 802.
Wireless LAN Array Fine Tuning Cell Sizes Adjusting the transmit power allows you to fine tune cell sizes. There are three settings—Large, Medium, or Small (the default is Medium). If you are installing many units in close proximity to each other, reduce the transmit power to avoid excessive interference with other arrays or installed APs. See also, “IAP Settings” on page 79. Small Medium Large Figure 15.
Wireless LAN Array Allocating Channels Because the XS-3900 is a multi-channel device, allocating the best channels to radios is important if peak performance is to be maintained. Automatic Channel Selection We recommend that you allow the XS-3900 to make intelligent channel allocation decisions automatically. In the automatic mode, channels are allocated dynamically, driven by changes in the environment.
Wireless LAN 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. Figure 18. Deployment Scenario (54 Mbps)—Per Sector Figure 19.
Wireless LAN Array Figure 20. Deployment Scenario (18 Mbps)—Per Sector Failover Planning This section discusses failover protection at the unit and port levels. Unit Failover Protection In the rare event that an XS-3900 becomes unavailable, it is suggested that you deploy a backup unit. Backup units monitor primary units via an Ethernet switch and continue to provide wireless services in the event that the primary unit becomes unavailable. Any XS-3900 can be set up as a backup unit.
Wireless LAN Array Port Failover Protection To ensure that service is continued in the event of a port failure, you can utilize all three XS-3900 ports (Fast Ethernet, Gigabit 1 and Gigabit 2) simultaneously. Multiple port connections Ethernet switch Figure 22. Port Failover Protection Switch Failover Protection To ensure that service is continued in the event of a switch failure, you can connect XS-3900 units to more than one Ethernet switch.
Wireless LAN Array Power Planning This section discusses the AC and DC power options. AC Power The AC power option requires a direct connection between the XS-3900 and a dedicated AC power outlet. The power cord is provided with the unit. Remote Distributed DC Power To deliver DC power to the XS-3900, you must have the optional Xirrus Remote DC Power System (XP-3100) and a Xirrus Array that supports DC power—see Figure 4 on page 8 .
Wireless LAN Array z Wi-Fi Protected Access 2 This is government-grade encryption—available on most new client adapters—and uses the AES–CCM encryption mode (Advanced Encryption Standard–Counter Mode). Authentication Authentication ensures users are who they say they are, and occurs when users attempt to join the wireless network and periodically there after. The following authentication methods are available with the XS-3900: 32 z RADIUS 802.1x 802.
Wireless LAN Array Network Management Planning Network management can be performed using any of the following methods: z Command Line Interface, using an SSH (Secure Shell) utility, like PuTTY. z Web-based management, using the XS-3900 unit’s embedded Web Management Interface (WMI). This method provides configuration and basic monitoring tools, and is good for small deployments (one or two units). z Web-based management, using the optional Xirrus Wireless Management System (XM-3300).
Wireless LAN Array Deployment Summary The following table summarizes your deployment options for small and large deployments.
Wireless LAN Array Installation Workflow This workflow illustrates the steps that are required to install and configure the XS-3900 successfully. Review this flowchart before attempting to install the unit on a customer’s network.
Wireless LAN Array Unpacking the XS-3900 When you unpack your XS-3900, you will find the following items in the carton: 36 Item Quantity Xirrus Wireless LAN Array (XS-3900) module 1 AC power cord 1 Mounting plate 1 Mounting screws 4 Screw anchors 4 Tile grid mounting clamps 4 Clamp nuts 4 Mounting template 1 End User License Agreement (EULA) 1 CD-ROM containing: This User’s Guide in PDF format README file 1 Quick Install Guide 1 Registration Card 1 Installing the XS-3900
Wireless LAN Array Installing the XS-3900 This section provides instructions for installing the XS-3900 unit. Choosing a Location Based on coverage, capacity and deployment examples discussed earlier in this chapter, choose a location for your XS-3900 that will provide the best results for your needs. The XS-3900 was designed to be mounted on a ceiling where the unit is unobtrusive and wireless transmissions can travel unimpeded throughout open plan areas. Choose a location that is central to your users.
Wireless LAN Array Mounting the Unit Most offices have drop-down acoustical ceiling tiles set into a standard grid. The XS-3900 has been designed to enable mounting to a tiled ceiling via a mounting plate and clamps that attach to the grid. Once the mounting plate is attached, the XS-3900 simply rotates onto the plate (similar to a smoke detector). Once the unit is mounted it can be removed and re-attached easily, without the need for tools or modifications to the original installation.
Wireless LAN Array Attaching the T-Bar Clips The T-bar clips are used to create four mounting points on the ceiling tile grid for the XS-3900 mounting plate. Use the mounting template (provided) to find the correct location for all four clamps. To attach the clamps, simply twist the clamps onto the grid and tighten the screw post with a screwdriver. Ceiling tile grid Template T-bar clips (4 places) Tighten the screw post Figure 25.
Wireless LAN Array Installing the Mounting Plate If necessary, orient the mounting plate (see “Attaching the T-Bar Clips” on page 39) and locate the plate on the four screw posts. Secure the mounting plate to the four clamps using the nuts provided. Once the mounting plate is secured, cut an access hole in the ceiling tile for the cables. Tile grid Mounting Plate Cut an access hole here Figure 26.
Wireless LAN 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 37. Figure 27. Connecting the Cables When the cables are connected, turn on the power switch—before attaching the unit to the mounting plate (next step). Verify that the Ethernet link LED lights and the LED boot sequence begins.
Wireless LAN Array Attaching the Array to the Mounting Plate Align the port recess on the XS-3900 with the access hole in the mounting plate, then connect the XS-3900 with the lugs on the mounting plate (4 places) and turn the XS-3900 clockwise to lock the unit into place (similar to a smoke detector). Figure 28. Attaching the Unit For added security, there is a locking bracket incorporated into the mounting plate, which will accept a small luggage-style padlock (if desired).
Wireless LAN Array Now that the XS-3900 is physically installed, you must run the Express Setup procedure from the unit’s Web Management Interface to enable the radios and establish initial system configuration settings. Go to “Powering Up the XS-3900” on page 44.
Wireless LAN Array Powering Up the XS-3900 When powering up, the array follows a specific sequence of LED patterns showing the boot progress, and following a successful boot will provide extensive status information. The normal boot sequence is as follows: 1. The green status LED will light first, showing a steady flashing while the unit boots. In the event of a boot failure, this LED will change to flashing red. 2.
Wireless LAN Array Once the unit is fully booted the default IAP LED display will be as follows: z IAP radio LEDs that are enabled will show a steady orange for 802.11a radios, or green for 802.11b/g radios. z Once a client associates with an individual IAP, that LED will show a slow flash (heartbeat) pattern. z When data is transmitted or received by an IAP, that IAP’s LED will flash.
Wireless LAN Array Establishing Communication with the Array The XS-3900 can be configured through the Command Line Interface (CLI) or the graphical Web Management Interface (WMI). You can use the CLI via the serial management port, the Fast Ethernet port, or either of the Gigabit Ethernet ports. You can use the WMI via any of the array’s Ethernet ports. Serial Fast Ethernet Gigabit 1 Gigabit 2 Figure 32.
Wireless LAN Array Performing the Express Setup Procedure The Express Setup procedure allows you to establish global configuration settings that will enable basic XS-3900 functionality. Any changes you make on this page will affect all radios. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. more ... Figure 33.
Wireless LAN Array ... continued Figure 34. WMI: Express Setup Page (Part 2) Procedure for Performing an Express Setup 48 1. Host Name: Specify a unique host name for this XS-3900 unit. The host name is used to identify the XS-3900 on the network. Use a name that will be meaningful within your network environment, up to 64 alphanumeric characters. 2. Location Information: Enter a brief but meaningful description that accurately defines the physical location of this XS-3900 unit.
Wireless LAN Array 6. Configure the Fast Ethernet, Gigabit 1 and Gigabit 2 network interfaces. The fields for each of these interfaces are the same, and include: a. MAC Address: This field displays the hardware MAC address for the network interface and cannot be changed. b. Enable Interface: Choose Yes to enable this network interface, or choose No to disable the interface. c.
Wireless LAN Array 8. Wireless Security: Select the desired wireless security scheme (WEP or WPA). Make your selection from the choices available in the pull-down list. WEP (Wired Equivalent Privacy) An optional IEEE 802.11 function that offers frame transmission privacy similar to a wired network. WEP generates secret shared encryption keys that both source and destination stations can use to alter frame bits to avoid disclosure to eavesdroppers.
Wireless LAN Array 11. Adjust Time (hrs:min:sec): Check this box if you want to adjust the current system time. When the box is checked, the time fields become active. Enter the revised time (hours, minutes, seconds, am/pm) in the corresponding fields. If you don’t want to adjust the current time, this box should be left unchecked (default). 12. Adjust Date (day/month/year): Check this box if you want to adjust the current system date. When the box is checked, the date fields become active.
Wireless LAN Array 15. Click on the Apply button to apply the new settings to this session 16. Click on the Save button to save your changes (otherwise your new settings will not take effect). This ends the Express Setup procedure.
Wireless LAN Array The Web Management Interface This chapter provides an overview of the XS-3900’s embedded Web Management Interface (WMI), used for establishing your network’s configuration settings and wireless operating parameters. Section headings for this chapter include: z An Overview An Overview The WMI is an easy-to-use graphical interface to your XS-3900. It allows you to configure the product to suit your individual requirements and ensure that the unit functions efficiently and effectively.
Wireless LAN Array Content The content of the WMI has been organized by function and hierarchy, shown here in list form. You can click on any item in the list to jump to the referenced destination. Array Status Express Setup Network Interfaces Network Settings VLAN Settings Network Statistics DHCP Server Settings DNS Settings IAP Interfaces IAP Settings Global Settings Global Settings .11a Global Settings .
Wireless LAN Array Structure The WMI has been designed with simplicity in mind, making navigation quick and easy. In the following example, you’ll see that pages are divided into left and right frames. The left frame contains configuration elements organized by function (for example, radio interfaces, security, etc.), and where these functions are sub-divided there is an associated pull-down menu.
Wireless LAN Array Status Bar Below the configuration frames you will find a status bar containing information about this XS-3900 unit, including: z Location—displays the location information assigned to the unit. z Host name—the host name assigned to this unit. z Network interface IP address—the IP address of the network interface that is currently being used. Also included in the status bar is a Print button and a Help button.
Wireless LAN Array Configuring the XS-3900 This chapter covers configuration and management tasks using the product’s embedded Web Management Interface (WMI). It also includes a procedure for logging in to the XS-3900 with your Web browser. Section headings for this chapter include: z Logging In z Making Configuration Changes to the XS-3900 Logging In Use this procedure to log in to the WMI via your Web browser. 1. Establish a network connection and open your Web browser. 2.
Wireless LAN Array Making Configuration Changes to the XS-3900 This section has been organized into functional areas that reflect the flow and content of the WMI. Configuration instructions to the XS-3900 require you to input data in one or more of the following formats: z Specifying data (for example, IP addresses, descriptions, etc.). z Making selections from pull-down lists. z Choosing an option by clicking on a radio button (for example, on/off).
Wireless LAN Array The Array Status page is sub-divided into the Network Interface and IAP Interface (radio) sections and provides you with the following information: z All devices: A listing of the available Network Interfaces and IAPs with each item containing a link to the associated configuration page. Linked items are shown UNDERLINED. For example: These items are linked Figure 41. Linked Items z All devices: The current status of each device, whether enabled or disabled.
Wireless LAN Array z z The IP Address column shows the current IP address being used by each network interface device. IAP Interface devices: z The Channel column shows on which channel each IAP (radio) is operating. Channel selections are made on the IAP Settings page from a pull-menu. To avoid co-channel interference, adjacent radios should not be using adjacent channels.
Wireless LAN Array Express Setup This page allows you to establish global configuration settings that will enable basic XS-3900 functionality. Any changes you make on this page will affect all radios. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. more ... Figure 44.
Wireless LAN Array ... continued Figure 45. WMI: Express Setup Page (Part 2) Procedure for Performing an Express Setup 62 1. Host Name: Specify a unique host name for this XS-3900 unit. The host name is used to identify the XS-3900 on the network. Use a name that will be meaningful within your network environment, up to 64 alphanumeric characters. 2. Location Information: Enter a brief but meaningful description that accurately defines the physical location of this XS-3900 unit.
Wireless LAN Array 6. Configure the Fast Ethernet, Gigabit 1 and Gigabit 2 network interfaces. The fields for each of these interfaces are the same, and include: a. MAC Address: This field displays the hardware MAC address for the network interface and cannot be changed. b. Enable Interface: Choose Yes to enable this network interface, or choose No to disable the interface. c.
Wireless LAN Array 8. Wireless Security: Select the desired wireless security scheme (WEP or WPA). Make your selection from the choices available in the pull-down list. WEP (Wired Equivalent Privacy) An optional IEEE 802.11 function that offers frame transmission privacy similar to a wired network. WEP generates secret shared encryption keys that both source and destination stations can use to alter frame bits to avoid disclosure to eavesdroppers.
Wireless LAN Array 12. Adjust Date (day/month/year): Check this box if you want to adjust the current system date. When the box is checked, the date fields become active. Enter the revised date (day, month, year) in the corresponding fields. If you don’t want to adjust the current date, this box should be left unchecked (default). 13. Auto Adjust Daylight Savings: Check this box if you want the system to adjust for daylight savings automatically, otherwise leave this box unchecked (default). 14.
Wireless LAN Array Network Interfaces This is a status only page that provides a snapshot of the configuration settings currently established for the 10/100 Fast Ethernet interface and the 10/100/1000 Gigabit 1 and Gigabit 2 interfaces. You must go to the appropriate configuration page to make changes to any of the settings displayed here (configuration changes cannot be made from this page). You can click on any item in the Interface column to “jump” to the associated configuration page. Figure 47.
Wireless LAN Array Network Settings This page allows you to establish configuration settings for the 10/100 Fast Ethernet interface and the 10/100/1000 Gigabit 1 and Gigabit 2 interfaces. # Gigabit 2 settings will “mirror” Gigabit 1 settings (except for MAC addresses) and cannot be configured separately. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. more ... Figure 48.
Wireless LAN Array ... continued Figure 49. WMI: Network Settings Page (Part 2) Network Interface Ports The following diagram shows the location of each network interface port on the underside of the XS-3900. Serial Fast Ethernet Gigabit 1 Gigabit 2 Figure 50.
Wireless LAN Array Procedure for Configuring the Network Interfaces 1. Configure the Fast Ethernet, Gigabit 1 and Gigabit 2 network interfaces. The fields for each of these interfaces are the same, and include: a. MAC Address: This field shows the MAC address for this array. The MAC (hardware) address is used to identify the Xirrus array to the wired network. The MAC address is a static value and cannot be changed. b.
Wireless LAN Array 70 e. MTU Size: Specify the MTU (Maximum Transmission Unit) size. When you specify the MTU, you are defining—in bytes—the largest physical packet size that the network can transmit. Any messages larger than the MTU that you specify here are divided into smaller packets before being sent. The default is 1000 bytes. f. Encapsulation: Choose either dot1H (802.1H) or snap (SNAP) as the Ethernet encapsulation type. g.
Wireless LAN Array VLAN Settings This page allows you to add or remove VLANs, associate VLANs to a specific network interface, and enable VLAN tagging of outgoing traffic. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 51.
Wireless LAN Array The bridging domain is supported on various pieces of network equipment, such as LAN switches, that operate bridging protocols between them with a separate group for each VLAN. VLANs provide the segmentation services traditionally provided by routers in LAN configurations. VLANs address scalability, security, and network management.
Wireless LAN Array 5. VLAN Management: This list shows the VLANs that are currently assigned to the array. Each time you create a VLAN, the new VLAN is listed here. To delete a VLAN, select the VLAN from the list and click on the Delete VLAN button. 6. Click on the Apply button to apply the new settings to this session. 7. Click on the Save button to save your changes (otherwise your new settings will not take effect). 8. VLANs you defined can now be assigned to specific SSIDs.
Wireless LAN Array Network Statistics This is a status only page that allows you to review statistical data associated with each network interface and its activity. You can Refresh the data (update the page with the latest information) or Clear the data (reset all content to zero and begin counting again) at any time by clicking on the appropriate button. If you are experiencing problems, you may also want to print this page for your records. Figure 52.
Wireless LAN Array DHCP Server Settings This page allows you to enable/disable DHCP (Dynamic Host Configuration Protocol) server functionality. DHCP allows the array to provide wireless clients with IP addresses and other networking information. The DHCP server will not provide DHCP services to the wired side of the network. If you enable the DHCP server, you need to define the DHCP lease time (default and maximum) and establish the IP address range that the DHCP server can use.
Wireless LAN Array 4. Starting IP Range: Enter an IP address to define the start of the IP range that will be used by the DHCP server. 5. End IP Range: Enter an IP address to define the end of the IP range that will be used by the DHCP server. The DHCP server will only use IP addresses that fall between the start and end range that you define on this page. 6. Click on the Apply button to apply the new settings to this session. 7.
Wireless LAN Array Procedure for Configuring DNS Servers 1. DNS Host Name: Enter a valid DNS host name. 2. DNS Domain: Enter the DNS domain name. 3. DNS Server 1: Enter the IP address of the primary DNS server. 4. DNS Server 2: Enter the IP address of the secondary DNS server. 5. DNS Server 3: Enter the IP address of the tertiary DNS server. 6. Click on the Apply button to apply the new settings to this session. 7.
Wireless LAN Array IAP Interfaces This is a status only page that allows you to review configuration data associated with each Integrated Access Point (radio). It includes a list of which IAP radios are enabled, the channel that each radio is currently using, cell sizes, and how many users are currently associated with each radio.
Wireless LAN Array IAP Settings This page allows you to enable/disable Integrated Access Points (radios), define the wireless mode for each radio, specify the channel to be used and the cell size for each radio, establish transmit/receive parameters, and select antennas. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. To see a diagram of the layout and naming of radios, go to Figure 6 on page 10. Figure 56.
Wireless LAN Array Procedure for Manually Configuring IAPs (Radios) 1. In the Enabled column, check the box of a corresponding radio to enable the radio, or uncheck the box if you want to disable the radio. 2. In the Mode column, select the wireless mode for this radio from the choices available in the pull-down menu (either .11a or .11b/g). 3. In the Channel column, select the channel you want this radio to use from the channels available in the pull-down list.
Wireless LAN Array 5. In the Antenna Select column, choose the antenna you want this radio to use from the pull-down list. The list of available antennas will be different, depending on the wireless mode you selected for the radio. The sample pull-down list shown here is for an 11a radio. In cases where the configuration of the array limits the antenna choice (for example, if no external antenna is available), the Antenna Select column is greyed out. 6.
Wireless LAN Array Global Settings This page allows you to establish global IAP (radio) settings. Global IAP settings include enabling or disabling all radios (regardless of their operating mode), auto-configuring channel allocations, enabling or disabling the Beacon World Mode and EDCF, specifying the short and long retry limits, and defining the beacon interval and DTIM period. Changes you make on this page are applied to all IAPs (radios), without exception. Figure 57.
Wireless LAN Array 3. Beacon World Mode: World Mode is a feature based on 802.11d. When this feature is enabled, the XS-3900 beacons out to client devices the correct legal set of channels and transmit power settings for the defined country code. This feature eliminates concerns about misconfigured client adapters because they will automatically know the correct channel set when communicating with the XS-3900. To enable the Beacon World Mode feature, choose Yes, or choose No to disable this feature.
Wireless LAN Array 8. DTIM Period: A DTIM (Delivery Traffic Indication Message) is a signal sent as part of a beacon by the XS-3900 to a client device in sleep mode, alerting the device to a packet awaiting delivery. Enter the desired value in the DTIM Period field, between 1 and 255. The value you enter here is applied to all radios. 9. Click on the Apply button to apply the new settings to this session. 10.
Wireless LAN Array Procedure for Configuring Global 802.11a IAP Settings 1. 802.11a Data Rates: The arrays allow you to enable or disable specific data rates for all 802.11a radios. z Enabled: Allow use of this data rate. z Required: Clients must support this data rate to associate with the network. In addition, you can make a specific data rate (for example, 12 Mbps) a required data rate, which means the 802.11a radios are required to support this data rate. 2. .
Wireless LAN Array Global Settings .11bg This page allows you to establish global 802.11a IAP (radio) settings. These settings include enabling or disabling 802.11a radios and making the data rates a required parameter, enabling or disabling all 802.11a radios, auto-configuration of channel allocations for all 802.11a radios, and specifying the fragmentation and RTS thresholds for all 802.11a radios. Figure 59. WMI: Global Settings .11bg Page Procedure for Configuring Global 802.11b/g IAP Settings 1.
Wireless LAN Array 2. 802.11b Data Rates: This task is similar to Step 1, but these data rates apply only to 802.11b radios. 3. .11bg IAP Status: Click on the Enable 802.11b/g IAPs button to enable all 802.11b/g radios for this array, or click on the Disable 802.11b/g IAPs button to disable all 802.11b/g radios. 4. Channel Configuration: Click on the Auto Configure button to instruct the array to determine the best channel allocation settings for each 802.
Wireless LAN Array IAP LED Settings This page allows you to set up the array’s IAP LEDs, including enabling or disabling the LED status functionality and assigning behavior preferences to the LEDs. Figure 60. WMI: IAP LED Settings Page Procedure for Configuring the IAP LEDs 88 1. LED Status: Choose Enabled to enable LED status functionality, or choose Disabled to disable the LEDs. 2.
Wireless LAN Array Statistics This is a status only page that provides an overview of the statistical data associated with individual radios. For more detailed information about a specific radio, simply click on any radio in the left column, or go to the statistics page for the desired radio (for example, Statistics IAP abg4). You can Refresh or Clear the data on this page at any time by clicking on the appropriate button.
Wireless LAN Array Statistics (for specific radios) These pages provide a detailed statistical summary of each radio’s performance, displayed either numerically or by percentage (your choice). The following image shows an example of the Statistics IAP abg3 page (for the abg3 radio). The default Statistics Type is NUMERIC, but you can change this to PERCENTAGE from the pull-down menu at the top of the page.
Wireless LAN Array ... continued Figure 63.
Wireless LAN Array SSID Management This is a status only page that allows you to review SSID (Service Set IDentifier) assignments. It includes the SSID name, whether or not an SSID is visible on the network, any security and QoS parameters defined for each SSID, associated VLAN IDs, and radio availability per SSID. There are no configuration options available on this page, but if you are experiencing problems or reviewing SSID management parameters, you may want to print this page for your records.
Wireless LAN Array Multiple SSIDs A BSSID (Basic SSID) refers to an individual access point radio and its associated clients. The identifier is the MAC address of the access point radio that forms the BSS. A group of BSSs can be formed to allow stations in one BSS to communicate to stations in another BSS by way of a backbone that interconnects each access point. The Extended Service Set (ESS) refers to the group of BSSIDs that are grouped together to form one ESS.
Wireless LAN Array Create SSID This page allows you to create and manage SSIDs, and assign security parameters and VLANs on a per SSID basis. When finished, click on the Save button to save your changes, otherwise your changes will not take effect. Figure 65. WMI: Create SSID Page Procedure for Creating SSIDs 94 1. New SSID: Enter a new SSID definition. 2. Security: From the pull-down list, choose the security that will be required by users for this SSID, either Open, WEP or WPA.
Wireless LAN Array 5. Click on the Create SSID button to create this SSID. The SSID you just created will appear in the SSID List on the Edit SSID page. 6. Click on the Save button to save your changes (otherwise your new settings will not take effect). Edit SSID This page allows you to edit existing SSIDs, and reassign security parameters and VLANs on a per SSID basis. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes.
Wireless LAN Array 96 3. Security: From the pull-down list, choose the security that will be required by users for the selected SSID—either Open, WEP or WPA. The Open option provides no security and is not recommended. For an overview of the security options, go to “Security Planning” on page 31. 4. QoS Priority: From the pull-down list, select a Quality of Service (QoS) setting. The QoS setting you define here will prioritize wireless traffic for the selected SSID over other SSID wireless traffic.
Wireless LAN Array Security This is a status only page that allows you to review the array’s security parameters. It includes the assigned network administration accounts, Access Control List (ACL) values, WEP and WPA status, and RADIUS configuration settings. There are no configuration options available on this page, but if you are experiencing issues with security, you may want to print this page for your records.
Wireless LAN Array Security Management This page allows you to establish the security parameters for your wireless network, including WEP, WPA and RADIUS authentication. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. For additional information about wireless network security, refer to “Security Planning” on page 31. Figure 68.
Wireless LAN Array Other security considerations include: z SSH versus Telnet: Be aware that Telnet is not secure over network connections and should be used only with a direct serial port connection. When connecting to the unit’s Command Line Interface over a network connection, you must use a Secure SHell (SSH) utility. The most commonly used freeware providing SSH tools is PuTTY.
Wireless LAN Array AES is the strongest encryption standard and is used by government agencies; however, old legacy hardware may not be capable of supporting the AES mode (it probably won’t work on older wireless clients). Because AES is the strongest encryption standard currently available, it is highly recommended for Enterprise networks. Any of the above encryption modes can be used, but only one may be used per SSID. If multiple security methods are needed, you must define multiple SSIDs.
Wireless LAN Array z MAC Address ACLs (Access Control Lists)—MAC address ACLs provide a list of client adapter MAC addresses that are allowed or denied access to the wireless network. Access Control Lists work well when there are a limited number of users—in this case, enter the MAC addresses of each user in the Allow list. In the event of a lost or stolen MAC adapter, enter the affected MAC address in the Deny list. Procedure for Configuring Network Security 1.
Wireless LAN Array 9. Key Length / Mode: If you enabled WEP, choose the desired key length (either 40 or 128) and the mode (either ASCII or Hex) from the pull-down lists. You must now provide the encryption key(s). a. Encryption Key 1 / Verify Key 1: Enter an encryption key of the length specified (either 40 or 128 characters), then re-enter the key to verify that you typed it correctly. b.
Wireless LAN Array Radius Server This page allows you to set up the array’s internal RADIUS server, or define the use of an external RADIUS server for user authentication. # The internal RADIUS server will only authenticate wireless clients that want to associate to the array. This can be useful if an external RADIUS server is not available. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 69.
Wireless LAN Array 4. Secondary IP Address (optional): If desired, enter the secondary RADIUS server’s IP address. If the primary RADIUS server becomes off-line, the array will “failover” to the secondary RADIUS server (defined here). 5. Radius Secondary Port Number: If desired, enter the secondary port number. 6. Radius Timeout: Define the maximum idle time (in seconds) before the RADIUS session times out. The default is 600 seconds. 7.
Wireless LAN Array Radius User This page allows you to create, delete and manage local RADIUS user accounts. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 70. WMI: Radius User Page Procedure for Configuring Radius Users 1. New User Name: Enter a new RADIUS user name. 2. User Password: Enter a password for this user. 3. Verify Password: Re-enter the user password to verify that you typed it correctly. 4.
Wireless LAN Array 6. User Name: If you want to edit an existing RADIUS user account, choose the user from the pull-down list. You must now enter the user password and select an SSID. a. User Password: Enter the password of the user account you want to edit. b. Verify Password: Re-enter the password to verify that you typed it correctly. c. SSID (Network Name): Choose an SSID from the pull-down list. 7.
Wireless LAN Array Procedure for Configuring MAC Access Lists 1. # MAC Access List Type: Select the MAC Access List type—either Disabled, Allow List or Deny List, then click on the Apply Edit button to apply your changes. z Allow List: Only allows these MAC addresses to associate to the array. z Deny List: Allows all MAC addresses except the addresses defined in this list. In addition to these lists, other authentication methods (for example, RADIUS) are still enforced for users. 2.
Wireless LAN Array Create Admin This page allows you to create and manage network administrator accounts. It also allows you to limit account access to a read only status. When finished, click on the Save button to save your changes. Figure 72. WMI: Create/Delete Admin Page Procedure for Creating Network Administrator Accounts 108 1. New Admin ID: Enter a meaningful description for this new network administrator ID. 2.
Wireless LAN Array 5. Click on the Create Admin button to add this administrator ID to the list. 6. Click on the Save button to save your changes (otherwise your new settings will not take effect). Edit Admin This page allows you to edit or delete existing administrator accounts. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 73. WMI: Edit Admin Page Procedure for Modifying Network Administrator Accounts 1.
Wireless LAN Array 3. Admin Password / Verify Password: Enter the password for the selected administrator ID in the left field, then re-enter the password in the right field (the two fields must match). 4. Click on the Apply button to apply the new settings to this session. 5. Click on the Save button to save your changes (otherwise your new settings will not take effect). Users This is a status only page that allows you to review the users currently associated with the network.
Wireless LAN Array Services This is a status only page that allows you to review the current status of syslog and SNMP services. There are no configuration options available on this page, but if you are experiencing issues with network services, you may want to print this page for your records. Figure 75.
Wireless LAN Array System Log This page allows you to enable or disable the Syslog server, define the server’s IP address, and set the level for Syslog reporting—the Syslog service will send Syslog messages to the defined Syslog server. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 76. WMI: System Log Page Procedure for Configuring Syslog 112 1.
Wireless LAN Array SNMP This page allows you to enable or disable SNMP and define the SNMP parameters. SNMP allows remote management of the array by the Xirrus Management System (XM-3300), or other SNMP-based management system. When finished, click on the Apply button to apply the new settings to this session, then click on the Save button to save your changes. Figure 77. WMI: SNMP Page Procedure for Configuring SNMP 1.
Wireless LAN Array Software This page displays the current system software version, the array’s serial number, and the array’s controller version. It also allows you to upgrade the system software. Procedure for Upgrading the System Firmware 1. Download the software upgrade file to your local PC. 2. From the WMI, go to the Software page. This page allows you to upgrade the system firmware. Figure 78. WMI: Software Page 114 3.
Wireless LAN Array Tools This page allows you to reset the system’s configuration parameters to their factory default values, reboot the system, and ping other IP addresses for diagnostic purposes. Figure 79. WMI: Tools Page Procedure for Configuring System Tools 1. System Configuration Reset: Click on the Reset button to reset the system’s current configuration settings to the factory default values—all previous configuration settings will be lost. 2.
Wireless LAN Array Event Log This is a status only page that allows you to review the event log. System alerts and messages are displayed on this page. There are no configuration options available on this page, but if you are experiencing issues with the network, you may want to print this page for your records. Figure 80.
Wireless LAN Array The Command Line Interface This chapter covers configuration and management tasks using the product’s Command Line Interface (CLI), and includes a procedure for establishing a Telnet connection to the XS-3900.
Wireless LAN Array Basic Commands Help To get help at any point type help or ?. Tab Key The Tab Key allows auto-completion of commands such that only a few unique characters need to be entered followed by the Tab Key, which will automatically fill in the rest of the command. ? Key The ? key displays the list of available commands at any point of typing in the command line. Save You must type save to save the current configuration to flash memory so that changes are kept when the array is rebooted.
Wireless LAN Array Radius Mode Allows configuration changes to the internal RADIUS server. Requires Read/Write Administrator Privilege From configure mode type radius Xirrus-Array(config)# radius Xirrus-Array(config-radsrv)# Run Test Mode Allows configuration and execution of tests Requires Read/Write Administrator Privilege From configure mode type run-tests Xirrus-Array(config)# run-tests Xirrus-Array(Run Test)# Selecting Interfaces From the configure mode select the desired interface.
Wireless LAN Array Command Line Keywords This section provides a brief description of available keywords, including any user-defined parameters associated with the keyword. An example of the keyword’s usage is also provided. Keywords are grouped by function. If you need to find a specific keyword, go to “Alphabetical Listing of CLI Keywords” on page 173 and click on the keyword—you will be taken to the keyword definition within this section.
Wireless LAN Array Interface Selection The following keywords are used when choosing an interface. dot11a Description: Select 802.11a WLAN interface Usage: interface { dot11a } Parameters: none dot11g Description: Select 802.
Wireless LAN Array Interface Configuration The following keywords are used for configuring the selected interface (assumes the interface has already been selected).
Wireless LAN Array dhcpbind Description: Obtain a DHCP address for this interface Usage: | { dhcpbind } Parameters: defines the Gigabit interface, either 1 or 2, where: 1 = Primary, 2 = Secondary defines the Fast Ethernet interface (must be zero) defines how the IP address is generated, either 0 or 1, where: 0 = Use static IP address, 1 = Use DHCP to get IP address down Description: Shut down this interface Usage: | { down } Parameters:
Wireless LAN Array halfduplex Description: Select the half duplex mode Usage: | { halfduplex } Parameters: defines the Gigabit interface, either 1 or 2, where: 1 = Primary, 2 = Secondary defines the Fast Ethernet interface (must be 0) ip-addr Description: Define a static IP address Usage: | { ip-addr } Parameters: defines the Gigabit interface, either 1 or 2, where: 1 = Primary, 2 = Secondary defines the Fast Ethernet interface (must b
Wireless LAN Array mtu Description: Set the maximum allowable MTU size Usage: | { mtu } Parameters: defines the Gigabit interface, either 1 or 2, where: 1 = Primary, 2 = Secondary defines the Fast Ethernet interface (must be zero) defines the maximum allowable MTU size, between 64 and 1794 parity Description: Establish the asynchronous port’s parity Usage: { parity } Parameters: defines which asynchronous interface is used def
Wireless LAN Array up Description: Bring up this interface Usage: | { up } Parameters: defines the Gigabit interface, either 1 or 2, where: 1 = Primary, 2 = Secondary defines the Fast Ethernet interface (must be zero) Radio Configuration The following keywords are used when configuring the XS-3900’s radios (assumes the interface has already been selected).
Wireless LAN Array basic18 Description: Require 18 Mbps rate Usage: { basic18 } Parameters: defines the radio number, between 1 and 16 basic2 Description: Require 2 Mbps rate Usage: { basic2 } Parameters: defines the radio number, between 13 and 16 basic24 Description: Require 24 Mbps rate Usage: { basic24 } Parameters: defines the radio number, between 1 and 16 basic36 Description: Require 36 Mbps rate Usage: { basic36 } Parameters: defines the radio
Wireless LAN Array basic6 Description: Require 6 Mbps rate Usage: { basic6 } Parameters: defines the radio number, between 1 and 16 basic9 Description: Require 9 Mbps rate Usage: { basic9 } Parameters: defines the radio number, between 1 and 16 cca Description: Employ Clear Channel Assessment function Usage: { cca } Parameters: defines the radio number, between 1 and 16 is a number between 0 and 60 to define the floor noise level in dB increments cel
Wireless LAN Array default_rates Description: Set default rates Usage: { default_rates } Parameters: defines the radio number, between 1 and 16 description Description: Specify a name to identify this interface Usage: { description } Parameters: defines the radio number, between 1 and 16 is defined as a string of up to 50 alphanumeric characters dot11gonly Description: Enable support for 802.
Wireless LAN Array enable11 Description: Allow 11 Mbps rate Usage: { enable11 } Parameters: defines the radio number, between 13 and 16 enable12 Description: Allow 12 Mbps rate Usage: { enable12 } Parameters: defines the radio number, between 1 and 16 enable18 Description: Allow 18 Mbps rate Usage: { enable18 } Parameters: defines the radio number, between 1 and 16 enable2 Description: Allow 2 Mbps rate Usage: { enable2 } Parameters: defines the radio
Wireless LAN Array enable5 Description: Allow 5 Mbps rate Usage: { enable5 } Parameters: defines the radio number, between 13 and 16 enable54 Description: Allow 54 Mbps rate Usage: { enable54 } Parameters: defines the radio number, between 1 and 16 enable6 Description: Allow 6 Mbps rate Usage: { enable6 } Parameters: defines the radio number, between 1 and 16 enable9 Description: Allow 9 Mbps rate Usage: { enable9 } Parameters: defines the radio number
Wireless LAN Array max-client-txpwr Description: Limit the client’s maximum transmit power Usage: { max-client-txpwr } Parameters: defines the radio number, between 1 and 16 specifies a number (in milliwatts) off Description: Turn OFF this feature Usage: { off } Parameters: defines the radio number, between 1 and 16 on Description: Turn ON this feature Usage: { on } Parameters: defines the radio number, between 1 and 16 prelong Description: Enable long p
Wireless LAN Array rate11 Description: Configure the 11 Mbps rate Usage: { rate11 } Parameters: defines the radio number, between 13 and 16 rate12 Description: Configure the 12 Mbps rate Usage: { rate12 } Parameters: defines the radio number, between 1 and 16 rate18 Description: Configure the 18 Mbps rate Usage: { rate18 } Parameters: defines the radio number, between 1 and 16 rate2 Description: Configure the 2 Mbps rate Usage: { rate2 } Parameters: de
Wireless LAN Array rate5 Description: Configure the 5 Mbps rate Usage: { rate5 } Parameters: defines the radio number, between 13 and 16 rate54 Description: Configure the 54 Mbps rate Usage: { rate54 } Parameters: defines the radio number, between 1 and 16 rate6 Description: Configure the 6 Mbps rate Usage: { rate6 } Parameters: defines the radio number, between 1 and 16 rate9 Description: Configure the 9 Mbps rate Usage: { rate9 } Parameters: defines
Wireless LAN Array Rxleft Description: Specify the left antenna Usage: { Rxleft } Parameters: defines the radio number, between 1 and 16 Rxright Description: Specify the right antenna Usage: { Rxright } Parameters: defines the radio number, between 1 and 16 short-retry-limit Description: Define t short retry limit Usage: { short-retry-limit } Parameters: defines the radio number, between 1 and 16 defines the short retry limit speed Description: Set allow
Wireless LAN Array Txleft Description: Specify the left antenna Usage: { Txleft } Parameters: defines the radio number, between 1 and 16 tx-pwr Description: Define the transmit power settings Usage: { tx-pwr } Parameters: defines the radio number, between 1 and 16 is defined as either 0, 1 or 2, where: 0 = quarter, 1 = half, 2 = maximum Txright Description: Specify the right antenna Usage: { Txright } Parameters: defines the radio number, between 1
Wireless LAN Array DTIM-rate Description: Determine beacon periods before the Delivery Traffic Indication Message (DTIM) is sent Usage: beacon { DTIM-rate } Parameters: defines the period between DTIM frames, in Kusecs (kilo microseconds), where 1 Kusec = 1024 microseconds period Description: Establish the amount of time between beacons Usage: beacon { period } Parameters: defines the period between beacons, in Kusecs (kilo microseconds), where 1 Kusec = 1024 microsec
Wireless LAN Array copy Description: Copy a file to another file Usage: copy Parameters: specifies the originating file specifies the destination file default-gateway Description: Define the default gateway IP address Usage: ip { default-gateway } Parameters: specifies the default gateway IP address defpw Description: Define the default password, up to 50 characters Usage: administrator { defpw } Parameters: none dhcp-server Description: Define the
Wireless LAN Array email Description: Define an email address for assistance on this XS-3900 Usage: contact-info { email } Parameters: defines the email address of the contact, up to 50 characters erase Description: Delete a file from the flash file system Usage: erase Parameters: specifies the target file to erase ftp Description: Open an FTP connection with a remote server Usage: ftp Parameters: specifies the host name or IP address of th
Wireless LAN Array logout Description: Log out the current administrator Usage: logout Parameters: none model Description: Get model number Usage: show-version { model } Parameters: none more Description: Get more (list file) Usage: more Parameters: specifies the target file to list name Description: Define a contact name for assistance on this XS-3900 Usage: contact-info { name } Parameters: defines the contact name, up to 50 characters name-server Description: Def
Wireless LAN Array reload Description: Reload and reset the XS-3900 Usage: reload Parameters: none reset Description: Reset the XS-3900 to its factory defaults Usage: reset Parameters: none serial Description: Get serial number Usage: show-version { serial } Parameters: none show-version Description: Get system version information Usage: show-version { model | serial | software | radios } Parameters: none shut-down Description: Shut down the entire system Usage: shut-down Parameters: none software Descripti
Wireless LAN Array System Testing The following keywords are used for system testing. led Description: Run LED tests Usage: run-tests { led } Parameters: specifies the LED to test (defined by LED number, 0 to 9—refer to “Now that the XS-3900 is physically installed, you must run the Express Setup procedure from the unit’s Web Management Interface to enable the radios and establish initial system configuration settings. Go to “Powering Up the XS3900” on page 44.
Wireless LAN Array Parameters: specifies target IP address or DNS name to trace specifies target IP address or DNS name to ping specifies the LED to test (defined by LED number, 0 to 9—refer to “Now that the XS-3900 is physically installed, you must run the Express Setup procedure from the unit’s Web Management Interface to enable the radios and establish initial system configuration settings. Go to “Powering Up the XS3900” on page 44.
Wireless LAN Array Usage: security { radioid { all11g { broadcastkey }}} Parameters: none capabilitychange Description: Issue a new key if the previous non-key STA disassociates, or the first non-key STA associates (optional) Usage: security { radioid { all11g { capabilitychange }}} Parameters: none change Description: Specify the time between key rotations (optional) Usage: security { radioid { all11g { change }}} Parameters: sets the time (in seconds) between key rotations ciphers Desc
Wireless LAN Array keyhash Description: Use encryption key hashing Usage: security { radioid { allradios { encryption { ciphers { tkip { tkipwep40 { keyhash }}}}}}} Parameters: none mandatory Description: Force station to use encryption to communicate with the XS3900 Usage: security { radioid { allradios { encryption { mandatory }}}} Parameters: none The Command Line Interface 145
Wireless LAN Array membershiptermination Description: Specify the time between key rotations (optional) Usage: security { radioid { all11g { membershiptermination }}} Parameters: none mic Description: Use the Message Integrity Check (MIC) function Usage: security { radioid { allradios { encryption { ciphers { tkip { tkipwep40 { mic }}}}}}} Parameters: none optional Description: Allow station to communicate with the XS-3900 with or without encryption Usage: security { radioid { allradios { encryption { optio
Wireless LAN Array security Description: Set the security parameters for the XS-3900’s radios Usage: security { radioid { allradios { encryption }}} Parameters: specifies the encryption key number, 1 to 4 server Description: Use the RADIUS server's reauthentication value instead of “reauth-period” value Usage: security { radioid { all11g { server }}} Parameters: none tkip Description: Specify TKIP as the cipher suite Usage: security { radioid { allradios { encryption { ciphers { tkip { tki
Wireless LAN Array wep128 Description: Use 128 bit WEP encryption Usage: security { radioid { allradios { encryption { wep128 }}}} Parameters: none wep40 Description: Use 40 bit WEP encryption Usage: security { radioid { allradios { encryption { wep40 }}}} Parameters: none Station Timeouts The following keywords are used for establishing STA timeouts.
Wireless LAN Array SSID Configuration The following keywords are used for establishing SSID parameters.
Wireless LAN Array ssid-brdcst Description: Specify if you want to broadcast this SSID Usage: ssid-manager { ssid { ssid-brdcst }} Parameters: specifies the SSID, up to 32 characters specifies if you want to broadcast this SSID, either 0 or 1, where: 0 = No, 1 = Yes ssid-manager Description: Set up SSID for a specific radio or the complete system Usage: ssid-manager { ssid { add } Parameters: specifies the SSID, up to 32 characters vlan Description: Define a VLAN ID associated
Wireless LAN Array hostname Description: Enter your host name Usage: dns { hostname } Parameters: specifies the host name server1 Description: Enter the primary DNS server Usage: dns { server1 } Parameters: specifies the primary DNS server server2 Description: Enter the primary DNS server Usage: dns { server2 } Parameters: specifies the secondary DNS server server3 Description: Enter the tertiary DNS server Usage: dns { server3 } Parameters: specifie
Wireless LAN Array ntp Description: Enable/disable or configure NTP services Usage: ntp { enable | disable } Parameters: none pri-nts Description: Establish the primary NTP server IP address or DNS name Usage: ntp { pri-nts } Parameters: specifies the IP address or DNS name (primary) sec-nts Description: Establish the secondary NTP server IP address or DNS name Usage: ntp { sec-nts } Parameters: specifies the IP address or DNS name (secondary) DHCP Configuration The following ke
Wireless LAN Array disable Description: Disable DHCP services Usage: dhcp { disable } Parameters: none enable Description: Enable DHCP services Usage: dhcp { enable } Parameters: none end-ip-range Description: Define the DHCP server’s ending IP address Usage: dhcp { configure { end-ip-range }} Parameters: specifies the ending IP address max-lease Description: Define the maximum allowable lease period Usage: dhcp { configure { max-lease }} Parameters: specifies the maximum allowab
Wireless LAN Array configure Description: Configure Syslog services Usage: syslog { configure { ipsyslog }} Parameters: specifies the Syslog server IP address console Description: Display syslog messages on your console Usage: syslog { configure { ipsyslog }} Parameters: specifies the Syslog server IP address ipsyslog Description: Define the Syslog server IP address Usage: syslog { console } Parameters: none level Description: Log all messages with the level you define here Usage
Wireless LAN Array SNMP Configuration The following keywords are used for establishing the SNMP parameters.
Wireless LAN Array snmpti Description: Define the SNMP trap IP address Usage: snmp { snmpti } Parameters: specifies the SNMP trap IP address Filters The following keywords are used for setting up filters.
Wireless LAN Array Radius Configuration The following keywords are used for configuring Radius services. client-timeout Description: Define 802.1x reply time from a client station Usage: radius { radius-server { dot1x { client-timeout }}} Parameters: specifies the time (in seconds) waiting for a client station 802.
Wireless LAN Array radius-secret Description: Define the Radius shared secret Usage: radius { radius-server { configure { radius-secret }}} Parameters: specifies the Radius shared secret radius-server Description: Configure the Radius server Usage: radius { radius-server { configure { radius-ip }}} Parameters: specifies the IP address of the Radius server reauth-period Description: Specify the elapsed time before allowing a client station to reattempt authentication U
Wireless LAN Array configure Description: Configure and request reports for the selected interface Usage: reports { configure { Dot11 }} Parameters: defines the radio number, between 1 and 16 disable Description: Disable report generation Usage: reports { disable } Parameters: none Dot11 Description: Generate reports for the selected radio Usage: reports { configure { Dot11 }} Parameters: defines the radio number, between 1 and 16 enable Description: Enable report generation Usag
Wireless LAN Array reports Description: Enable/disable or configure report generation Usage: reports { enable | disable | configure | clear }}} Parameters: none Data Handling The following keywords are used for defining how data is handled by the system.
Wireless LAN Array client Description: Designates a client station to deauthenticate Usage: clear { dot11 { client }} Parameters: specifies the MAC address of a client station you want to disassociate dot11 Description: Designates a wireless interface Usage: clear { dot11 { client }} Parameters: specifies the MAC address of a client station you want to disassociate statistics Description: Designates accumulated counters, such as amount of data transmission
Wireless LAN Array controllers Description: Display radio baseband information Usage: show { controllers { dot11radio }} Parameters: specifies the radio ID or number (1 to 16) dot11 Description: Select the wireless interface Usage: show { dot11 { adjacent-ap }} Parameters: none dot11radio Description: Select a specific radio Usage: show { controllers { dot11radio }} Parameters: specifies the radio ID or number (1 to 16) file Description: Display the individual file si
Wireless LAN Array interface Description: Display all available interface information Usage: show { interface } Parameters: none line Description: Display the terminal status Usage: show { line } Parameters: none local-server Description: Display the embedded RADIUS server on this XS-3900 Usage: show { radius { local-server { statistics }}} Parameters: none radius Description: Display the Radius server information Usage: show { radius { local-server { statistics }}} Parameters: none running_config Descripti
Wireless LAN Array statistics Description: Display statistics for this embedded RADIUS server Usage: show { radius { local-server { statistics }}} Parameters: none system-files Description: List all system file names and sizes Usage: show { file { system-files }} Parameters: none users Description: Display user information Usage: show { users } Parameters: none version Description: Display the system version information Usage: show { version } Parameters: none Remove Configuration The following keywords ar
Wireless LAN Array beacon Description: Disable all beacon support Usage: no { dot11 { beacon }} Parameters: none client Description: Reset to default the maximum power a client can transmit (this will be advertised by the XS-3900) Usage: no { dot11 { power { client }}} Parameters: none client-timeout Description: Set to default the amount of time a client must wait for a EAP response Usage: no { dot1x { client-timeout }} Parameters: none dhcp-server Description: Disable DHCP services Usage: no { ip { dhcp-s
Wireless LAN Array dot1x Description: Make the “no” command specific to 802.
Wireless LAN Array local Description: Reset to default the maximum power the AP can transmit Usage: no { dot11 { power { local }}} Parameters: none name-server Description: Disable this specific DNS server by IP address Usage: no { ip { name-server }} Parameters: specifies the IP address of the target name server to disable no Description: Disable if enabled, or set to default value Usage: no { ip { dhcp-server }} Parameters: none power Description: Reset power settings to their default values
Wireless LAN Array rts Description: Disable RTS support Usage: no { dot11 { rts }} Parameters: none security Description: Disable security commands or reset to defaults Usage: no { security { authentication }} Parameters: none ssid Description: Remove a specific SSID Usage: no { dot11 { ssid }} Parameters: specifies the target SSID to remove from the system syslog Description: Disable the Syslog services Usage: no { ip { syslog }} Parameters: none worldmode Description: Disable world mode
Wireless LAN Array Appendix A: Quick Reference Guide This chapter contains XS-3900 product reference information. Use this chapter to locate the information you need quickly and efficiently. Section headings for this chapter include: z Review of WMI Pages z Alphabetical Listing of CLI Keywords z Factory Default Settings z Keyboard Shortcuts z Keyboard Shortcuts Review of WMI Pages This section provides a review of the product’s WMI pages, with a brief explanation of their function and content.
Wireless LAN Array Page 170 Function Network Statistics Provides statistical data associated with network interfaces and their activity. DHCP Server Settings Enable or disable DHCP (Dynamic Host Configuration Protocol) server functionality. DNS Settings Set up a DNS server (or multiple servers), if you want to offer clients associating with the XS-3900 the ability to use meaningful domain names (URLs) instead of numerical IP addresses.
Wireless LAN Array Page Function SSID Management Provides a snapshot of SSID (Service Set IDentifier) assignments. It includes the SSID name, whether or not an SSID is visible on the network, any security and QoS parameters defined for each SSID, associated VLAN IDs, guest access, and radio availability per SSID. Create SSID Create, delete (or restore) and manage SSIDs. It also allows you to assign security parameters and VLANs on a per SSID basis.
Wireless LAN Array Page 172 Function Create Admin Create new network administrator accounts, delete existing accounts, or restore accounts. It also allows you to limit account access to a read only status. Edit Admin Edit existing network administrator accounts, change passwords, and redefine whether an account is limited to a read only status. Users Provides a snapshot of users currently associated with the network. Services Provides a current status of Syslog and SNMP services.
Wireless LAN Array Alphabetical Listing of CLI Keywords This section provides a listing of all available CLI keywords, sorted alphabetically. Where the same keyword appear multiple times, the functional areas that it pertains to are also included (italicized). Click on any keyword to jump to the referenced destination. A activity-timeout station timeouts activity-timeout remove config.
Wireless LAN Array contact-info controllers copy D def default-gateway default-lease default_rates defpw del description dhcp dhcpbind dhcp-server system admin. dhcp-server remove config. dir disable ntp config. disable dhcp config. disable snmp config. disable filters disable reports dns domain domain-lookup domain-name Dot11 dot11 data clearance dot11 show information dot11 remove config. dot11a dot11g dot11gonly dot11preamble dot11radio 174 dot1x security dot1x radius config. dot1x remove config.
Wireless LAN Array filters flash frag-threshold ftp fullduplex gateway gigabit GigE led level line interface selection line show information linktest local local-server location logout long-retry-limit H M halfduplex help holdoff-time hostname system admin. hostname dns config. hosts http-port http-server management mandatory mask max-client-txpwr max-lease membershiptermination mic model more mtu G I info interface interface selection interface show information ip system config. ip remove config.
Wireless LAN Array on syslog configuration optional optkeyhash P packet parity payload-encapsulation period ping policy power preamble prelong preshort pri-nts Q qos-ssid R radio radioid radios radius radius config. radius show information radius-ip radius-port radius-secret radius-server range rate1 rate11 rate12 rate18 176 rate2 rate24 rate36 rate48 rate5 rate54 rate6 rate9 reauth-period security reauth-period station timeouts reauth-period radius config. reauth-period remove config.
Wireless LAN Array server3 short-retry-limit show show-version shut-down snmp snmpta snmptp snmpti software speed interface config. speed radio config. ssid ssid config. ssid remove comfig. ssid-brdcst ssid-manager startup_config start-ip-range sta-timeouts statistics data clearance statistics show information stopbits syslog syslog config. syslog remove config. system-files tx-pwr Txright U up interface config. up radio config.
Wireless LAN Array Factory Default Settings The following tables show the XS-3900’s factory default settings. Network Interfaces Serial Setting Default Value Baud Rate 115200 Word Size 8 bits Stop Bits 1 Parity No parity Time Out 10 seconds Gigabit 1 and Gigabit 2 Setting 178 Default Value Enabled Yes DHCP Bind Yes Default IP Address 10.0.1.2 Default IP Mask 255.0.0.
Wireless LAN Array Fast Ethernet Setting Default Value Enabled Yes DHCP Bind Yes Default IP Address 10.0.1.1 Default IP Mask 255.0.0.
Wireless LAN Array Server Settings DHCP Setting Default Value Enabled No Maximum Lease Time 300 minutes Default Lease Time 300 minutes IP Start Range 192.168.1.1 IP End Range 192.168.1.100 External RADIUS Setting Default Value Enabled Yes Primary Server 0.0.0.
Wireless LAN Array Internal RADIUS Setting Enabled Default Value No The user database is cleared upon reset to the factory defaults. For the Internal RADIUS Server you have a maximum of 200 entries. NTP Setting Default Value Enabled No Primary time.nist.gov Secondary 192.6.15.
Wireless LAN Array Default SSID Setting Default Value ID xirrus VLAN None Encryption Off Encryption Type None QoS None Enabled Yes Encryption Setting Enabled 182 Default Value Yes WEP Keys null (all 4 keys) WEP Key Length null (all 4 keys) Default Key ID 0 WPA Enabled No TKIP Enabled Yes AES Enabled No EAP Enabled Yes PSK Enabled No Pass Phrase null Group Rekey 600 Appendix A: Quick Reference Guide
Wireless LAN Array Administrator Account and Password Setting Default Value ID admin Password admin Management Setting Default Value Telnet On SSH On Appendix A: Quick Reference Guide 183
Wireless LAN Array Keyboard Shortcuts The following table shows the most common keyboard shortcuts. Action Shortcut Cut selected data and place it on the clipboard. Ctrl + X Copy selected data to the clipboard. Ctrl + C Paste data from the clipboard into a document (at the insertion point). Ctrl + V Copy the active window to the clipboard. Copy the entire desktop image to the clipboard. Abort an action at any time. 184 Alt + Print Screen Print Screen Esc Go back to the previous screen.
Wireless LAN Array Appendix B: Technical Support This chapter provides valuable support information that can help you resolve technical difficulties. Before contacting Xirrus, review all sections in this chapter and try to determine if your problem resides with XS-3900 or your network infrastructure.
Wireless LAN Array Frequently Asked Questions This section answers some of the most frequently asked questions, organized by functional area. Multiple SSIDs Q. What Are BSSIDs and SSIDs? A. BSSID (Basic Service Set Identifier) refers to an individual access point radio and its associated clients. The identifier is the MAC address of the access point radio that forms the BSS.
Wireless LAN Array Another example may define an SSID named voice that supports voice over Wireless LAN phones with the highest possible Quality of Service (QoS) definition. This type of SSID might also forward traffic to specific VLANs on the wired network. Q. How do I set up SSIDs? A. Use the following procedure as a guideline. For more detailed information, go to “SSID Management” on page 92. 1. From the Web Management Interface, go to the Create SSID page. 2.
Wireless LAN Array Security Q. How do I know my management session is secure? A. Follow these guidelines: z Administrator passwords Always change the default administrator password (the default is admin), and choose a strong replacement password. When appropriate, issue read only administrator accounts. z SSH versus Telnet Be aware that Telnet is not secure over network connections and should be used only with a direct serial port connection.
Wireless LAN Array z WEP (Wired Equivalent Privacy) This option provides minimal protection (though much better than using an open network). An early standard for wireless data encryption and supported by all Wi-Fi certified equipment, WEP is vulnerable to hacking and is therefore not recommended for use by Enterprise networks.
Wireless LAN Array z RADIUS 802.1x with EAP 802.1x uses a RADIUS server to authenticate large numbers of clients, and can handle different EAP (Extensible Authentication Protocol) authentication methods, including EAP-TLS, EAPTTLS and EAP-PEAP. The RADIUS server can be internal (provided by the XS-3900) or external. An external RADIUS server offers more functionality and is recommended for large Enterprise deployments.
Wireless LAN Array VLAN Support Q. What Are VLANs? A. VLANs (Virtual Local Area Networks) are a logical grouping of network devices that share a common network broadcast domain. Members of a particular VLAN can be on any segment of the physical network but logically only members of a particular VLAN can see each other. VLANs are defined and implemented using the wired network switches that are VLAN capable. Packets are tagged for transmission on a particular VLAN according to the IEEE 802.
Wireless LAN Array As an example, to provide guest user access an SSID of guest might be created. This SSID could be mapped to a wired VLAN that segregates unknown users from the rest of the wired network and restricts them to Internet access only. Wireless users could then associate to the wireless network via the guest SSID and obtain access to the Internet through the selected VLAN, but would be able to access other privileged network resources. Q. How do I set up Wireless VLANs? A.
Wireless LAN Array Contact Information Xirrus, Inc. is located in Westlake Village, California, just 45 minutes northwest of downtown Los Angeles and 45 minutes southeast of Santa Barbara. Xirrus, Inc. 370 North Westlake Blvd, Suite 200 Westlake Village, CA 91362 USA Tel: 1.805.497.0955 Fax: 1.805.449.1180 www.xirrus.
Wireless LAN Array Use this space for your notes ...
Wireless LAN Array Glossary of Terms 802.11a A supplement to the IEEE 802.11 WLAN specification that describes radio transmissions at a frequency of 5 GHz and data rates of up to 54 Mbps. 802.11b A supplement to the IEEE 802.11 WLAN specification that describes radio transmissions at a frequency of 2.4 GHz and data rates of up to 11 Mbps. 802.11d A supplement to the Media Access Control (MAC) layer in 802.11 to promote worldwide use of 802.11 WLANs.
Wireless LAN Array authentication The process that a station, device, or user employs to announce its identify to the network which validates it. IEEE 802.11 specifies two forms of authentication, open system and shared key. bandwidth Specifies the amount of the frequency spectrum that is usable for data transfer. In other words, it identifies the maximum data rate a signal can attain on the medium without encountering significant attenuation (loss of power).
Wireless LAN Array channel A specific portion of the radio spectrum—the channels allotted to one of the wireless networking protocols. For example, 802.11b and 802.11g use 14 channels in the 2.4 GHz band, only 3 of which don't overlap (1, 6, and 11). In the 5 GHz band, 802.11a uses 8 channels for indoor use and 4 for outdoor use, none of which overlap.
Wireless LAN Array domain The main name/Internet address of a user's Internet site as registered with the InterNIC organization, which handles domain registration on the Internet. For example, the “domain” address for Xirrus is: http://www.xirrus.com, broken down as follows: z http:// represents the Hyper Text Teleprocessing Protocol used by all Web pages. z www is a reference to the World Wide Web. z xirrus refers to the company. z com specifies that the domain belongs to a commercial enterprise.
Wireless LAN Array encryption Any procedure used in cryptography to translate data into a form that can be decrypted and read only by its intended receiver. Fast Ethernet A version of standard Ethernet that runs at 100 Mbps rather than 10 Mbps. FCC (Federal Communications Commission) US wireless regulatory authority. The FCC was established by the Communications Act of 1934 and is charged with regulating Interstate and International communications by radio, television, wire, satellite and cable.
Wireless LAN Array MAC address (Media Access Control Address) A 6-byte hexadecimal address assigned by a manufacturer to a device. Mbps (Megabits per second) A standard measure for data transmission speeds (for example, the rate at which information travels over the Internet). 1 Mbps denotes one million bits per second. MTU (Maximum Transmission Unit) The largest physical packet size—measured in bytes—that a network can transmit.
Wireless LAN Array preamble Preamble (sometimes called a header) is a section of data at the head of a packet that contains information that the access point and client devices need when sending and receiving packets. PLCP has two structures, a long and a short preamble. All compliant 802.11b systems have to support the long preamble.
Wireless LAN Array Remote DC Power System (XP-3100) An optional Xirrus proprietary product that provides distributed DC power to multiple XS-3900 units, eliminating the need to run dedicated AC power to each unit and facilitating backup power when connected via a UPS. RSSI (Received Signal Strength Indicator) A measure of the energy observed by an antenna when receiving a signal.
Wireless LAN Array SSID (Service Set IDentifier) Every wireless network or network subset (such as a BSS) has a unique identifier called an SSID. Every device connected to that part of the network uses the same SSID to identify itself as part of the family—when it wants to gain access to the network or verify the origin of a data packet it is sending over the network. In short, it is the unique name shared among all devices in a WLAN.
Wireless LAN Array VLAN tagging (Virtual LAN tagging) Static port-based VLANs were originally the only way to segment a network without using routing, but these port-based VLANs could only be implemented on a single switch (or switches) cabled together. Routing was required to transfer traffic between unconnected switches. As an alternative to routing, some vendors created proprietary schemes for sharing VLAN information across switches.
Wireless LAN Array WPA (Wi-Fi Protected Access) A Wi-Fi Alliance standard that contains a subset of the IEEE 802.11i standard, using TKIP as an encryption method and 802.1X for authentication. XM-3300 The Xirrus Wireless Management System (XM-3300) is a Xirrus proprietary product used for managing large XS-3900 deployments from a centralized Webbased interface.
Wireless LAN Array Use this space for your notes ...
Wireless LAN Array Index Radius services 157 remove configuration 164 reports 158 security 143 show information 161 SNMP configuration 155 SSID configuration 149 station timeouts 148 Syslog configuration 153 system administration 137 system testing 142 testing 142 Numerics 802.11a 11 802.11a/b/g 11 802.11b/g 11 802.11e 12 802.11p 12 802.
Wireless LAN Array event messages 55 express setup 47, 61 external RADIUS server 802.
Wireless LAN Array S W Secure Shell 17 security 6, 12, 97 management 98 RADIUS server 103, 105 serial port 18 services 111 SNMP 9, 113 software 114 specifications 13 SSH 17 SSID creating 94 deleting 94 editing 95 management 92 statistics 74 status bar 56 system log 112 warning messages 55 Web interface 53 structure and navigation 55 WEP 12 Wi-Fi compliance 12 workflow 35 WPA2 6 X Xirrus Management System 6, 9, 12, 19 Xirrus Remote Power System 17, 19 XMS 6, 9, 12, 19 XRPS 17, 19 XS 3900 management 57
Wireless LAN Array 210 Index
