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Wireless LAN Array

Installing the Xirrus Array

29

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.

Figure 14. Sample 802.11a Cells

68 ft

98 ft

165 ft

54 Mbps per sector

36 Mbps per sector

18 Mbps per sector

14,520 sq ft

30,157 sq ft

85,487 sq ft

Содержание Wi-Fi Array XS-3900

Страница 1: ...XS 3900 3700 3500 Wireless Wireless Wireless Wireless Wireless LAN Array LAN Array LAN Array LAN Array LAN Array User s Guide March 17th 2006...

Страница 2: ...reserved This document may not be reproduced or disclosed in whole or in part by any means without the written consent of Xirrus Inc Part Number 800 0006 001 Revision E Wireless LAN Array XS 3900 XS 3...

Страница 3: ...r there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turn...

Страница 4: ...o 2483 5MHz 5150MHz to 5250MHz and 5725MHz to 5825MHz bands The antenna gains must not exceed maximum EIRP limits set by the FCC Industry Canada High Power Radars High power radars are allocated as pr...

Страница 5: ...ante bestemmelser i Direktiv 1999 5 EF Deutsch German Dieses Gerat entspricht den grundlegenden Anforderungen und den weiteren entsprechenden Vorgaben der Richtinie 1999 5 EU Eesti Estonian See seande...

Страница 6: ...d Direttiva 1999 5 EC Margyar Hungarian Ez a k sz l k teljesiti az alapvet k vetelm nyeket s m s 1999 5 EK ir nyelvben meghat rozott vonatkoz rendelkez seket Norsk Norwegian Dette utstyret er i samsva...

Страница 7: ...o EN 50385 CE Marking For the Xirrus Wireless LAN Array XS 3900 XS 3700 and XS 3500 the CE mark and Class 2 identifier opposite are affixed to the equipment and its packaging Suomi Finnish T m laite t...

Страница 8: ...e take back systems will reuse or recycle most of the materials of this equipment in a way that will not harm the environment z The crossed out wheeled bin symbol in accordance with European Standard...

Страница 9: ...e additional requirements or restrictions than those listed in the above table Belgium The Belgian Institute for Postal Services and Telecommunications BIPT must be notified of any outdoor wireless li...

Страница 10: ...un b timent Dans le cas d une utilisation en ext rieur aucune fr quence dans le bandes des 5 GHz n est permise tandis que la puissance est limit e dans certaines parties de la bande des 2 4 GHz Report...

Страница 11: ...i Interfaccia Radio Nazionali e rispetta il Piano Nazionale di ripartizione delle frequenze in Italia Se non viene installato all interno del proprio fondo l utilizzo di prodotti wireless LAN richiede...

Страница 12: ...e either Web Management Interface WMI or Command Line Interface CLI Operating Frequency The operating frequency in a wireless LAN is determined by the access point As such it is important that the acc...

Страница 13: ...0 C Explosive Device Proximity Warning Do not operate the XS 3900 XS 3700 XS 3500 unit near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially...

Страница 14: ...c de pas 50 C Proximit d appareils explosifs N utilisez pas l unit XS 3900 XS 3700 XS 3500 proximit d amorces non blind es ou dans un environnement explosif moins que l appareil n ait t sp cifiquement...

Страница 15: ...AND THAT CUSTOMER IS BOUND BY AND BECOMES A PARTY TO THIS AGREEMENT 1 Definitions 1 1 Documentation means the user manuals and all other all documentation instructions or other similar materials acco...

Страница 16: ...censes granted to the Software Licensor and its suppliers retain all rights title and interest in and to the Software including i any and all trade secrets copyrights patents and other proprietary rig...

Страница 17: ...any computer software or hardware which is designated to defeat any copy protection or other use limiting device including any device intended to limit the number of users or devices accessing the Pro...

Страница 18: ...RDOUS ENVIRONMENTS REQUIRING FAIL SAFE PERFORMANCE SUCH AS IN THE OPERATION OF A NUCLEAR FACILITY AIRCRAFT NAVIGATION OR COMMUNICATIONS SYSTEMS AIR TRAFFIC CONTROLS OR OTHER DEVICES OR SYSTEMS IN WHIC...

Страница 19: ...ion constitutes Licensor s and its suppliers proprietary and confidential information and contains valuable trade secrets of Licensor and its suppliers Confidential Information Customer shall protect...

Страница 20: ...ays or a receiver is appointed with respect to a substantial part of its assets 5 3 Effect of Termination a Upon termination of this Agreement in whole or in part Customer shall pay Licensor for all a...

Страница 21: ...ional laws governing the Software This Agreement will be governed by and construed under the laws of the State of California and the United States as applied to agreements entered into and to be perfo...

Страница 22: ...rrant that the Equipment is error free or that Customer will be able to operate the Equipment without problems or interruptions This warranty does not apply if the Equipment a has been altered except...

Страница 23: ...property and deemed confidential information of Xirrus Equipment including technical data is subject to U S export control laws including the U S Export Administration Act and its associated regulatio...

Страница 24: ...Warnings z Translated Safety Warnings z Software Warranty and License Agreement z Hardware Warranty Agreement List of Figures ix Introduction 1 The Xirrus Family of Products 1 Nomenclature 2 About thi...

Страница 25: ...24 Coverage and Capacity Planning 25 Placement 25 RF Patterns 26 Calculating Areas 27 Capacity and Cell Sizes 28 Sample 802 11a Cells 29 Fine Tuning Cell Sizes 30 Roaming Considerations 30 Allocating...

Страница 26: ...he Array 53 Using the Serial Port 53 Using the Ethernet Ports 53 Logging In 53 Performing the Express Setup Procedure 54 Kit Contents 60 Tools Required 60 Mark the Wall Position 61 Install the SNAPTOG...

Страница 27: ...ings 103 Statistics 104 Statistics for specific radios 105 Statistics for all radios 106 SSID 107 Understanding SSIDs 108 SSID Management 109 Security 112 Security Management 113 Radius Server 118 Rad...

Страница 28: ...146 Quit 146 No 146 Command Modes 147 Configure Mode 147 Admin Mode 147 Contact Info Mode 147 Date Time Mode 148 DHCP Mode 148 DNS Mode 148 Radius Mode 148 Run Test Mode 149 Security Mode 149 SNMP Mo...

Страница 29: ...189 security 189 show 192 snmp 194 ssh 195 syslog 196 telnet 197 Appendices 199 Appendix A Servicing the Xirrus Array 201 Removing the Access Panel 202 Reinstalling the Access Panel 204 Replacing the...

Страница 30: ...al RADIUS 217 Internal RADIUS 218 NTP 218 Syslog 218 SNMP 218 Default SSID 219 Encryption 219 Administrator Account and Password 220 Management 220 Keyboard Shortcuts 220 Appendix C Technical Support...

Страница 31: ...Wireless LAN Array viii Table of Contents Page is intentionally blank...

Страница 32: ...smit Power 30 Figure 16 Overlapping Cells 30 Figure 17 Allocating Channels Manually 31 Figure 18 Deployment Scenario 54 Mbps Per Sector 32 Figure 19 Deployment Scenario 36 Mbps Per Sector 32 Figure 20...

Страница 33: ...Figure 51 WMI Express Setup Page Part 1 73 Figure 52 WMI Express Setup Page Part 2 74 Figure 53 WMI Time Zones 77 Figure 54 Enabling the NTP Feature 78 Figure 55 WMI Network Interfaces Page 79 Figure...

Страница 34: ...ure 90 WMI System Log Page 135 Figure 91 WMI SNMP Page 137 Figure 92 WMI Array Info Page 139 Figure 93 WMI Tools Page 140 Figure 94 WMI Show Config Page 142 Figure 95 WMI Event Log Page 143 Figure 96...

Страница 35: ...oving the Access Panel 203 Figure 116 Disconnecting the Power Supply and Fan 203 Figure 117 Reconnecting the Fan and Power Supply 204 Figure 118 Reinstalling the Access Panel 204 Figure 119 Removing t...

Страница 36: ...oducts includes the following items z Xirrus Wireless LAN Array XS 3900 XS 3700 XS 3500 The Wireless WLAN Array is specifically designed for the Enterprise market There are three versions of this prod...

Страница 37: ...e the Xirrus Array so that end users can take full advantage of the product s features and functionality without technical assistance Organization Topics and procedures are organized by function under...

Страница 38: ...ence Guide Contains product reference information including a review of the Web Management Interface pages and their content an alphabetical listing of keywords available with the Command Line Interfa...

Страница 39: ...oaded it free of charge from http www adobe com Hyperlinks If you click on body text that appears in the color TEAL with the exception of headings or notes the embedded hyperlink within the text will...

Страница 40: ...access and use the same applications and network services that they use when plugged into the company s wired LAN infrastructure it s only the plug that no longer exists Wireless LAN has come a long...

Страница 41: ...ptional Xirrus Wireless Management System XM 3300 allows global management of hundreds of Arrays from a central location The XS 3700 and XS 3500 versions of the Wireless LAN Array deliver a correspond...

Страница 42: ...tterns Figure 2 depicts the following two scenarios z Full pattern coverage All radios are activated with coverage spanning 360 degrees If within range clients will always receive coverage regardless...

Страница 43: ...C power to your Array 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 whi...

Страница 44: ...reports and statistics Figure 5 WMI Array Status Page In addition a fully featured Command Line Interface CLI offers IT professionals a familiar management and control environment SNMP Simple Network...

Страница 45: ...sers The unit includes two Gigabit uplink ports for connection to the wired network A total of sixteen IAPs provides a maximum wireless capacity of 864 Mbps which offers ample reserves for the high de...

Страница 46: ...creased wireless range and enhanced data rates in all directions With a Xirrus Array deployed far fewer access points are needed for your wireless network Radio abg2 see Figure 6 can be switched to us...

Страница 47: ...ided via 802 1x including PEAP EAP TLS and EAP TTLS Applications Enablement QoS Quality of Service functionality combined with true switch capabilities enable high density Voice over Wireless LAN depl...

Страница 48: ...o 50 C 0 to 90 relative humidity non condensing Storage Temperature 20 C to 60 C 5 to 95 relative humidity non condensing Maximum Operating Altitude 2000 meters 6561 feet System 825 MHz CPU 128MB RAM...

Страница 49: ...TP client RFC VLAN Support 802 1Q P VLAN Supports up to 16 VLANs Multiple SSID Support Allows up to 16 separate SSIDs to be defined with map security VLAN and QoS settings for each SSID Performance Cl...

Страница 50: ...factory defaults requires the Xirrus Wireless Management System Rogue AP detection with alerts and classification User and System Authentication WPA Pre Shared Key authentication Embedded RADIUS Serv...

Страница 51: ...ds 11a 5 15 5 25 GHz UNII 1 11a 5 15 5 25 GHz TELEC 11a 5 25 5 35 GHz UNII 2 11a 5 470 5 725 ETSI 11a 5 725 5825 GHz UNII 3 11b g 2 412 2 462 GHz FCC 11b g 2 412 2 472 GHz ETSI 11b g 2 412 2 484 GHz T...

Страница 52: ...emperature 10 C to 50 C 0 to 90 relative humidity non condensing Storage Temperature 20 C to 60 C 5 to 95 relative humidity non condensing Maximum Operating Altitude 2000 meters 6561 feet System 825 M...

Страница 53: ...TP client RFC VLAN Support 802 1Q P VLAN Supports up to 16 VLANs Multiple SSID Support Allows up to 16 separate SSIDs to be defined with map security VLAN and QoS settings for each SSID Performance Cl...

Страница 54: ...factory defaults requires the Xirrus Wireless Management System Rogue AP detection with alerts and classification User and System Authentication WPA Pre Shared Key authentication Embedded RADIUS Serv...

Страница 55: ...NII 2 11a 5 470 5 725 ETSI 11a 5 725 5825 GHz UNII 3 11b g 2 412 2 462 GHz FCC 11b g 2 412 2 472 GHz ETSI 11b g 2 412 2 484 GHz TELEC Antenna 4 internal 3 dBi 180 802 11b g sectorized antennas 1 inter...

Страница 56: ...ites Your Xirrus Array deployment requires the presence of hardware and services in the host wired wireless network including z Dedicated AC power outlet Unless you are using the Xirrus Remote DC Powe...

Страница 57: ...ial connection capability To connect directly to the console port on the Array your computer must be equipped with a male 9 pin serial port and terminal emulation software for example HyperTerminal Us...

Страница 58: ...large Xirrus Array deployments z Xirrus Remote DC Power System XP 3100 The optional XP 3100 provides distributed DC power to multiple Arrays eliminating the need to run dedicated AC power to each uni...

Страница 59: ...nding on the types of materials and background RF radio frequency noise at your location To maximize wireless range follow these basic guidelines 1 Keep the number of walls and ceilings between the Ar...

Страница 60: ...ing considerations and channel allocations Placement Use the following guidelines when considering placement options 1 The best placement option for the Array is ceiling mounted within an open plan en...

Страница 61: ...disabling individual sectors Full Normal Coverage In normal operation the Array provides a full 360 degrees of coverage Figure 10 Full Normal Coverage Half Coverage If installing a unit close to an e...

Страница 62: ...Coverage Calculating Areas Before we discuss cell sizes it is useful to know how to calculate the area of a circle because the Array radiates a full 360 degrees The area of a circle is equal to pi S t...

Страница 63: ...r multiplied by the total number of sectors being used The following chart shows the maximum recommended cell sizes for each data rate Desired Data Rate Mbps 11a Cell Size 11b g Cell Size Radius feet...

Страница 64: ...e 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 Figure 14 Sample 802 11a C...

Страница 65: ...ult is Large 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 pag...

Страница 66: ...to make intelligent channel allocation decisions automatically In the automatic mode channels are allocated dynamically driven by changes in the environment Manual Channel Selection You can manually a...

Страница 67: ...mples 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...

Страница 68: ...nning This section discusses failover protection at the unit and port levels Port Failover Protection To ensure that service is continued in the event of a port failure you can utilize the Gigabit 1 a...

Страница 69: ...a switch failure you can connect Arrays to more than one Ethernet switch not a hub Figure 22 Switch Failover Protection Interface Bridges Data Bridges Management Traffic Fails Over To IP address Fast...

Страница 70: ...the XP 3100 In addition the XP 3100 can be plugged into a UPS to prevent power failure to all Arrays in the network Security Planning This section offers some useful guidelines for defining your pref...

Страница 71: ...authentication methods EAP TLS EAP TTLS EAP PEAP z Xirrus internal RADIUS server Includes all the core functionality of a full RADIUS server built into the Xirrus Array Recommended for smaller numbers...

Страница 72: ...oring tools and is good for small deployments one or two units z Web based management using the optional Xirrus Wireless Management System XM 3300 The XM 3300 is used for managing large Array deployme...

Страница 73: ...AC DC with XP 3100 AC DC with XP 3100 UPS backup recommended Failover Recommended Highly recommended VLANs Optional Optional use Can be used to put all APs on one VLAN or map to existing VLAN scheme...

Страница 74: ...to install the unit on a customer s network Figure 23 Installation Workflow Determine the number of Arrays needed Choose the location s for your Xirrus Arrays AC DC Install the mounting plate Connect...

Страница 75: ...owing items in the carton Item Quantity Xirrus Wireless LAN Array 1 AC power cord 1 Console cable 1 Mounting plate 1 Mounting screws 4 Tile grid mounting clamps 4 Clamp nuts 4 Mounting template 1 CD R...

Страница 76: ...d earlier in this chapter choose a location for the Array that will provide the best results for your needs The Xirrus Array was designed to be mounted on a ceiling where the unit is unobtrusive and w...

Страница 77: ...ach unit If you are using the XP 3100 to distribute DC power to multiple Arrays go to Remote DC Power System Optional on page 8 Once you have determined the best location for your Xirrus Array you mus...

Страница 78: ...attached directly to the ceiling with the screws and anchors provided without using the tile grid mounting clamps The Array s Ethernet ports should be plugged into an Ethernet switch not an Ethernet...

Страница 79: ...iling tile grid for the Array 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...

Страница 80: ...the T Bar Clips on page 44 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 th...

Страница 81: ...lso Wiring Considerations on page 42 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 Et...

Страница 82: ...g Plate XS 3900 Align the port recess on the Array with the access hole in the mounting plate then connect the Array with the lugs on the mounting plate 4 places and turn the Array clockwise to lock t...

Страница 83: ...the Mounting Plate XS 3500 Align the XS 3500 Wireless LAN Array with the key post on the mounting plate then turn the Array to the right to lock the unit into place at the 4 lugs similar to a smoke d...

Страница 84: ...ed near the Ethernet ports In addition the mounting plate incorporates a positive locking tab that prevents the unit from being inadvertently released Figure 30 Securing the Array Now that the Array i...

Страница 85: ...o as to increase the space between the Array and the mounting plate at the positions indicated by the decals on the mounting plate these are aligned with IAPs radios abg1 and abg3 as indicated on the...

Страница 86: ...ing while the unit boots In the event of a boot failure this LED will change to flashing red 2 The Ethernet Link Activity LEDs on the underside of the Array will light for those ports connected to the...

Страница 87: ...a is transmitted or received by an IAP that IAP s LED will flash The rate of flashing changes with the number of packets sent or received per second the LED will flash more quickly with a greater numb...

Страница 88: ...Ports If the Array is booted and does not receive DHCP addresses on either the Fast Ethernet or Gigabit Ethernet ports the Fast Ethernet port will default to an IP address of 10 0 0 1 and both Gigabi...

Страница 89: ...you to establish global configuration settings that will enable basic Array functionality Any changes you make on this page will affect all radios When finished click on the Apply button to apply the...

Страница 90: ...the Array In an environment where multiple units are installed clear definitions for their locations are important if you want to identify a specific unit 3 Admin Contact Enter the name and contact i...

Страница 91: ...alid IP address for this Array To use any of the remote connections Web SNMP or SSH a valid IP address must be used z IP Subnet Mask Enter a valid IP address for the subnet mask the default is 255 255...

Страница 92: ...is the stronger of the two wireless security schemes For more information about security including a full review of all security options and settings go to Security Management on page 113 10 Wireless...

Страница 93: ...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 correspondin...

Страница 94: ...s box is checked the NTP and NTP 2 IP address fields become active If you don t want to use an NTP server leave this box unchecked default otherwise enter the IP address or DNS name of the NTP server...

Страница 95: ...the Array on the ceiling may be impractical at your location Kit Contents The Wall Mounting Assembly kit includes the following items z 8 x SNAPTOGGLE toggle bolts for attaching the wall bracket to th...

Страница 96: ...holes Figure 39 Wall Mount Marking the Holes When marking the holes ensure that the mounting plate is level you may need assistance The bracket must be secured to the wall in at least 5 places using...

Страница 97: ...il the metal channel rests flush behind the wall To achieve the maximum shear holding capability for the toggle bolt orient the metal channel so that the channel is vertical to the floor Using your ot...

Страница 98: ...ing Plate to the Wall Mounting Bracket Secure the Wireless LAN Array s mounting plate to the Wall Mounting Bracket 4 places tighten the 4 bolt assemblies to a torque of 10 12 lbf ft 1 38 1 66 kgf m Do...

Страница 99: ...ntation of the Wireless LAN Array when mounted on a wall It is not intended to show a fully installed Array 7 Mount the Wireless LAN Array to the Wall Mounting Bracket in the same way that you would m...

Страница 100: ...erface WMI used for establishing your network s configuration settings and wireless operating parameters An Overview The WMI is an easy to use graphical interface to your Xirrus Array It allows you to...

Страница 101: ...faces Network Settings Network Statistics DHCP Settings DNS Settings IAP Interfaces IAP Settings Global Settings Global Settings 11a Global Settings 11bg IAP LED Settings Statistics Individual IAP Sta...

Страница 102: ...y etc and where these functions are sub divided there is an associated pull down menu Also included in the left frame are three counters that provide a running total of messages generated by the syslo...

Страница 103: ...he Print button to send a print file of the active page to your local printer or click on the Help button to go to the Array s online help system Figure 45 WMI Status Bar Applying Configuration Change...

Страница 104: ...ngs for this chapter include z Logging In on page 69 z Making Configuration Changes to the Array on page 70 Logging In Use this procedure to log in to the WMI via your Web browser 1 Establish a networ...

Страница 105: ...selections from pull down lists z Choosing an option by clicking on a radio button for example on off z Clicking on a check box to activate deactivate a feature z Clicking on a button to confirm a co...

Страница 106: ...l devices The current status of each device whether enabled or disabled Devices that are disabled are shown in RED For example Figure 49 WMI Disabled Device Partial View z Network Interface devices z...

Страница 107: ...tly active for each radio either small medium large or manually defined by you The cell size of a radio is a function of its transmit power and determines the radio s overall coverage Cell sizes are d...

Страница 108: ...al configuration settings that will enable basic Array 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...

Страница 109: ...f the Array In an environment where multiple units are installed clear definitions for their locations are important if you want to identify a specific unit 3 Admin Contact Enter the name and contact...

Страница 110: ...c IP option you must enter the following information z IP Address Enter a valid IP address for this Array To use any of the remote connections Web SNMP or SSH a valid IP address must be used z IP Subn...

Страница 111: ...at contains a subset of the IEEE 802 11i standard using TKIP or AES as an encryption method and 802 1X for authentication WPA is the stronger of the two wireless security schemes For more information...

Страница 112: ...t time this box should be left unchecked default 13 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...

Страница 113: ...s box is checked the NTP and NTP 2 IP address fields become active If you don t want to use an NTP server leave this box unchecked default otherwise enter the IP address or DNS name of the NTP server...

Страница 114: ...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 underlined in the Interface column to jump to th...

Страница 115: ...nterface and the 10 100 1000 Gigabit 1 and Gigabit 2 interfaces 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 Fig...

Страница 116: ...igure 57 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 Array Figure 58 Network Interface Port...

Страница 117: ...ns manually otherwise these options are not available z Duplex Full duplex refers to the transmission of data in two directions simultaneously for example a telephone is a full duplex device because b...

Страница 118: ...IP Subnet Mask If you selected the Static IP option enter a valid IP address for the subnet mask the default for Class C is 255 255 255 0 The subnet mask defines the number of IP addresses that are av...

Страница 119: ...h 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 click...

Страница 120: ...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 maxim...

Страница 121: ...mum allowable DHCP lease time The default is 300 seconds 4 Starting IP Range Enter an IP address to define the start of the IP range that will be used by the DHCP server The default is 192 168 1 100 5...

Страница 122: ...At least one DNS server must be set up if you want to offer clients associating with the Array the ability to use meaningful host names instead of numerical IP addresses When finished click on the App...

Страница 123: ...in 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 C...

Страница 124: ...nabled the channel that each radio is currently using cell sizes and how many users are currently associated with each radio There are no configuration options available on this page but if you are ex...

Страница 125: ...adio 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...

Страница 126: ...e 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...

Страница 127: ...ill be available 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 cho...

Страница 128: ...ling 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...

Страница 129: ...u specify here in hours and minutes using the format hh mm Leave this field blank unless you want to specify a time at which the auto configuration utility is initiated 5 Short Retry Limit This attrib...

Страница 130: ...hentications 10 Station Timeout Period Specify a time in seconds in this field to define the timeout period for station associations 11 Max Station Association per IAP This option allows you to define...

Страница 131: ...11a IAP radio settings These settings include defining which 802 11a data rates are supported enabling or disabling all 802 11a radios auto configuration of channel allocations for all 802 11a radios...

Страница 132: ...associate z Supported Rate the Array will use this data rate for transmissions to clients 2 Optimize Data Rates The Xirrus Wireless LAN Array can optimize your 802 11a data rates automatically based o...

Страница 133: ...nsmitted over the 802 11a radio Larger frames fragment into several packets their maximum size defined by the value you enter here Smaller fragmentation numbers can help to squeeze packets through in...

Страница 134: ...radio settings These settings include defining which 802 11b and 802 11g data rates are supported enabling or disabling all 802 11b g radios auto configuration of channel allocations for all 802 11b...

Страница 135: ...ng 802 11g Data Rates Select or deselect data rates by clicking in the corresponding Supported and Basic data rate check boxes z Basic Rate a wireless station client must support this rate in order to...

Страница 136: ...b g channel allocations 6 Set Cell Size The Cell Size may be set globally for all 802 11a IAPs to Large Medium or Small via a drop down menu 7 802 11g Only Select On if you want to restrict use to 802...

Страница 137: ...on Threshold value in this field between 256 and 2346 12 RTS Threshold The RTS Request To Send Threshold specifies the packet size Packets larger than the RTS threshold will use CTS RTS prior to trans...

Страница 138: ...ent triggers the LEDs either when a radio is enabled or when a radio first associates with the network Choose On Radio Enabled or On First Association as desired 2 LED Blink Behavior This option allow...

Страница 139: ...ssociated 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 Statis...

Страница 140: ...ge your choice The following image shows an example from the XS 3700 product of the Statistics IAP a4 page for the a4 radio The default Statistics Type is NUMERIC but you can change this to PERCENTAGE...

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