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Wireless Array

Installing the Wireless Array

29

Fine Tuning Cell Sizes

Adjusting the

transmit power

allows you to fine tune cell sizes. There are four

standard sizes — Small, Medium, Large, or Max (the default is

Max

). There is also

an Auto setting that automatically determines the best cell size, and a Manual
setting that allows you to choose your power settings directly.

Figure 13. Transmit Power

Auto Cell Size is an automatic, self-tuning mechanism that balances cell size
between Arrays to guarantee coverage while limiting the RF energy that could
extend beyond the organizational boundary. Auto Cell uses communication
between Arrays to dynamically set radio power so that complete coverage is
provided to all areas, yet at the minimum power level required. This helps to
minimize potential interference with neighboring networks. Additionally, Arrays
running Auto Cell automatically detect and compensate for coverage gaps caused
by system interruptions. To enable the Auto Cell Size feature, go to

“RF Power &

Sensitivity” on page 285

. For a complete discussion of the Auto Cell size feature,

see the

Xirrus Auto Cell Application Note

in the

Xirrus Resource Center

.

If you are installing many units in proximity to each other, we recommend that
you use Auto Cell Size; otherwise, reduce the transmit power using manual
settings to avoid excessive interference with other Arrays or installed APs. See
also,

“Coverage and Capacity Planning” on page 26

.

Large

Medium

Small

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Содержание XR-1220

Страница 1: ...USER S GUIDE High Performance Wireless Networks Wireless Arrays XR Series May 5 2012 Release 6 1 DRAFT5...

Страница 2: ......

Страница 3: ...l 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 0022 001 Revision D Wireless Array XR Seri...

Страница 4: ...eir respective holders Please see Legal Notices Warnings Compliance Statements and Warranty and License Agreements in Appendix C Notices on page 431 Xirrus Inc 2101 Corporate Center Drive Thousand Oak...

Страница 5: ...r over Gigabit Ethernet PoGE 10 Enterprise Class Management 10 Key Features and Benefits 12 High Capacity and High Performance 12 Extended Coverage 12 Non Overlapping Channels 13 SDMA Optimization 13...

Страница 6: ...iderations 30 Allocating Channels 30 Deployment Examples 33 IEEE 802 11n Deployment Considerations 35 MIMO Multiple In Multiple Out 36 Multiple Data Streams Spatial Multiplexing 37 Channel Bonding 38...

Страница 7: ...g the WMI 67 Logging In 67 Entering the License 67 Performing the Express Setup Procedure 69 Procedure for Performing an Express Setup 70 Securing Low Level Access to the Array 76 The Web Management I...

Страница 8: ...nnel History 114 Radio Assurance 116 Station Status Windows 118 Stations 119 Location Map 120 RSSI 125 Signal to Noise Ratio SNR 127 Noise Floor 129 Max by IAP 131 Station Assurance 132 Statistics Win...

Страница 9: ...Connecting Securely to the WMI 194 Using the Array s Default Certificate 194 Using an External Certificate Authority 195 Admin Management 196 Admin Privileges 198 Admin RADIUS 200 About Creating Admi...

Страница 10: ...61 Beacon Configuration 263 Station Management 263 Advanced Traffic Optimization 264 Global Settings 11an 270 Global Settings 11bgn 274 Global Settings 11n 279 Advanced RF Settings 282 About Standby M...

Страница 11: ...20 About Licensing and Upgrades 321 System 322 Automatic Updates from Remote Image or Configuration File 323 Configuration 324 Diagnostics 326 Web Page Redirect 328 Network Tools 329 Progress and Stat...

Страница 12: ...359 filter 362 Air Cleaner 363 group 366 hostname 366 interface 367 load 367 location 368 management 368 more 370 netflow 371 no 372 quit 374 radius server 374 reboot 375 reset 375 restore 376 run tes...

Страница 13: ...on an Open SSID 397 Configuring Radio Assurance Mode Loopback Tests 398 Appendices 401 Appendix A Quick Reference Guide 403 Factory Default Settings 403 Host Name 403 Network Interfaces 403 Serial 403...

Страница 14: ...pecific Attribute VSA for Xirrus 423 Upgrading the Array via CLI 424 Sample Output for the Upgrade Procedure 425 Contact Information 429 Appendix C Notices 431 Notices 431 EU Directive 1999 5 EC Compl...

Страница 15: ...Manually 32 Figure 16 Deployment Scenario 54 Mbps Per Sector 33 Figure 17 Deployment Scenario 36 Mbps Per Sector 33 Figure 18 Deployment Scenario 18 Mbps Per Sector 34 Figure 19 Classic 802 11 Signal...

Страница 16: ...igure 49 Show Configuration 96 Figure 50 Admin Login History 97 Figure 51 Network Settings 98 Figure 52 Network Map 99 Figure 53 Spanning Tree Status 102 Figure 54 Routing Table 103 Figure 55 ARP Tabl...

Страница 17: ...istics 139 Figure 85 Filter Statistics 140 Figure 86 Station Statistics 140 Figure 87 Individual Station Statistics Page 141 Figure 88 System Log Alert Level Highlighted 142 Figure 89 IDS Event Log 14...

Страница 18: ...02 1p Layer 2 227 Figure 126 Priority Level DSCP DiffServ Layer 3 227 Figure 127 SSID Management 231 Figure 128 SSID Management 235 Figure 129 WPR Internal Splash Page Fields SSID Management 238 Figur...

Страница 19: ...Splash Login page files 328 Figure 163 System Command Ping 329 Figure 164 Radius Ping Command 329 Figure 165 Radius Ping Output 330 Figure 166 CLI Window 332 Figure 167 WMI Display Options 333 Figure...

Страница 20: ...gures Figure 183 Setting the Cell Size for All IAPs 395 Figure 184 Setting the Cell Size for a Specific IAP 396 Figure 185 Configuring VLANs on an Open SSID 397 Figure 186 Configuring Radio Assurance...

Страница 21: ...s Arrays XR Series The Xirrus family of products includes the following The XR Series of Xirrus Wireless Arrays The newest Xirrus Wireless Arrays have been completely redesigned to provide distributed...

Страница 22: ...ts of the Xirrus Management System Users start the XMS client simply by entering the URL of the XMS server on a web browser The XMS server manages a number of Wireless Arrays via SNMP Figure 2 The Xir...

Страница 23: ...Power over Gigabit Ethernet system may be referred to as PoGE Why Choose the Xirrus Wireless Array The deployment of wireless is a necessity as businesses strive for greater flexibility in the workpla...

Страница 24: ...backwards compatible with 802 11b 802 11n Uses multiple antennas per radio to boost transmission speed as high as 450Mbps increasing throughput range and maximum number of users 802 11n is backwards c...

Страница 25: ...ray XR Series The Wireless Array regardless of the product model is Wi Fi compliant and simultaneously supports 802 11a 802 11b 802 11g and 802 11n clients The multi state design allows you to assign...

Страница 26: ...erage pattern produced by its directional antennas is ideal for covering facilities with central hallways and adjacent rooms commonly found in office buildings hotels and dormitories The Xirrus XR 200...

Страница 27: ...Yes Yes Yes Yes 1 Gigabit Uplink Ports 1 1 1 1 1 1 Wireless bandwidth 600 Mbps 900 Mbps 600 Mbps 900 Mbps 1 2 Gbps 1 8 Gbps Users supported 480 480 480 480 960 960 Feature XR 4420 XR 4430 XR 4820 XR...

Страница 28: ...with an optional Xirrus 10 Gig fiber optics adapter See Also Key Features and Benefits Wireless Array Product Overview Power over Gigabit Ethernet PoGE Feature XR 6820 XR 6830 XR 7220 XR 7230 XR 7620...

Страница 29: ...ome part of the wireless network With the Xirrus Advanced Feature Sets intrusion detection and prevention site monitoring and RF spectrum analysis are performed in the background by the Array automati...

Страница 30: ...m bleeding beyond the site s perimeter wall This configuration may also be used in those cases where you want to restrict wireless coverage to selected areas of the building s interior Power over Giga...

Страница 31: ...ommand Line Interface CLI offers IT professionals a familiar management and control environment SNMP Simple Network Management Protocol is also supported to allow management from an SNMP compliant man...

Страница 32: ...s sixteen IAPs radios provide a maximum wireless capacity of 7 2 Gbps which offers ample reserves for the high demands of current and future applications Of the sixteen IAPs fifteen operate as radios...

Страница 33: ...verage while allowing independent channel and power output customization Also supports fast inter zone handoffs for time sensitive applications and roaming Fast Roaming Utilizes the Xirrus Roaming Pro...

Страница 34: ...n of the Xirrus Wireless Array RPM manages the allocation of wireless bandwidth to wireless stations across multiple RF channels The result maximizes overall network performance with superior flexibil...

Страница 35: ...rall network security with superior flexibility and performance Today s wireless networks face a number of potential security threats in the form of rogue access points ad hoc clients unauthorized cli...

Страница 36: ...ver the next several years with additional performance and optional functions along with ongoing stream of IEEE 802 11 amendments This changing wireless landscape mandates that appropriate tools are a...

Страница 37: ...d by function under the following chapter headings Introduction Provides a brief introduction to wireless technology an overview of the product including its key features and benefits and presents the...

Страница 38: ...es some sample key configuration tasks using the CLI Appendix A Quick Reference Guide Contains the product s factory default settings Appendix B Technical Support Offers guidance to resolve technical...

Страница 39: ...ave Acrobat Reader you can download 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 h...

Страница 40: ...Wireless Array 20 Introduction Product Specifications XR Array Family Please refer to the Xirrus web site for the latest specifications for these Arrays www xirrus com...

Страница 41: ...are and services in the host wired wireless network including Power Source Most Arrays are powered via Xirrus Power over Gigabit Ethernet PoGE supplies power over the same Cat 5e or Cat 6 cable used f...

Страница 42: ...the same subnet as the Array or you must set a static route for management as described in the warning above Serial connection capability To connect directly to the console port on the Array all model...

Страница 43: ...ll or large Wireless Array deployments External RADIUS server Although your Array comes with an embedded RADIUS server for 802 1x authentication in large deployments you may want to add an external RA...

Страница 44: ...n page 51 WDS Planning on page 52 Common Deployment Options on page 55 General Deployment Considerations The Wireless Array s unique multi radio architecture generates 360 degrees of sectored high gai...

Страница 45: ...ee angle the same wall is over 42 feet or 14 meters thick For best reception try to ensure that your wireless devices are positioned so that signals will travel straight through a wall or ceiling Figu...

Страница 46: ...nerate RF noise Because the Array is generally mounted on ceilings be aware of its position relative to lighting especially fluorescent lighting we recommend maintaining a distance of at least 3 to 6...

Страница 47: ...r disabling individual sectors Full Normal Coverage In normal operation the Array provides a full 360 degrees of coverage Figure 9 Full Normal Coverage Half Coverage If installing a unit close to an e...

Страница 48: ...ng used for example data video voice and the number of Arrays available at the location The capacity of a cell is defined as the minimum data rate desired for each sector multiplied by the total numbe...

Страница 49: ...Arrays to dynamically set radio power so that complete coverage is provided to all areas yet at the minimum power level required This helps to minimize potential interference with neighboring networks...

Страница 50: ...this feature see the Xirrus Sharp Cell Application Note in the Xirrus Resource Center Roaming Considerations Cells should overlap approximately 10 15 to accommodate client roaming Figure 14 Overlappin...

Страница 51: ...ime Auto Channel selection has significant advantages including Allows the Array to come up for the first time and not interfere with existing equipment that may be already running thereby limiting co...

Страница 52: ...asis though manual selection is not recommended and not necessary Figure 15 Allocating Channels Manually See Also Deployment Examples Failover Planning Installation Prerequisites To avoid co channel i...

Страница 53: ...employ 802 11a cells each offering minimum throughputs of 54 Mbps 36 Mbps and 18 Mbps per sector respectively and assume a floor plan covering a total area of about 60 000 square feet 5574 sq m Figure...

Страница 54: ...Wireless Array 34 Installing the Wireless Array Figure 18 Deployment Scenario 18 Mbps Per Sector See Also Coverage and Capacity Planning Failover Planning Planning Your Installation...

Страница 55: ...scussed in MIMO Multiple In Multiple Out on page 36 Multiple Data Streams Spatial Multiplexing on page 37 Channel Bonding on page 38 Improved MAC Throughput on page 39 Short Guard Interval on page 39...

Страница 56: ...intains broadband performance even with weak signals Prior to 802 11n a data stream was transmitted via one antenna At the receiving end the antenna with the best signal was selected to receive data F...

Страница 57: ...smits completely separate data streams on different antennas in the same channel that are recombined to produce new 802 11n data rates Higher data rates are achieved by splitting the original data str...

Страница 58: ...u are using two channels for an IAP We recommend the use of the 5 GHz band since it has many more channels than the 2 4 GHz band and thus more channels are available for bonding The Array provides an...

Страница 59: ...reased by approximately 11 The short interval may be used in many environments especially indoors If the short guard interval is used in an inappropriate environment the signal quality will suffer and...

Страница 60: ...ry in 802 11n apply multiplier to IAP if it is bonded Short Guard Interval Optional See Figure 24 to see the 802 11n data rate increase for an IAP Apply this increase to the 802 11 a b or g data rates...

Страница 61: ...o Gigabit Ethernet ports simultaneously as a bonded pair on Arrays with two or more Gigabit ports Figure 25 Port Failover Protection 802 11 Mode Channels Max Theoretical Capacity 802 11 a n 3 Streams...

Страница 62: ...hernet ports actually support a number of modes 802 3ad Link Aggregation Load Balancing Broadcast Link Backup Mirrored For more details on Gigabit port modes and their configuration please see Network...

Страница 63: ...ple Gigabit ports to more than one Ethernet switch not a hub Figure 26 Switch Failover Protection See Also Coverage and Capacity Planning Deployment Examples Installation Prerequisites Network Managem...

Страница 64: ...et PoGE modules They provide power over Cat 5e or Cat 6 cables to the Array without running power cables Specific models of the Array are compatible with specific PoGE modules For details please see t...

Страница 65: ...an WEP and uses TKIP for encryption Wi Fi Protected Access WPA2 with AES This is government grade encryption available on most new client adapters and uses the AES CCM encryption mode Advanced Encrypt...

Страница 66: ...client devices and entered into each Array MAC Access Control Lists ACLs MAC access control lists provide a list of client adapter MAC addresses that are allowed or denied access to the wireless netw...

Страница 67: ...uirements are illustrated in Figure 27 XMS requires ports 161 162 and 443 to be passed between Arrays and the XMS server Similarly ports 9090 and 9091 are required for communication between the XMS se...

Страница 68: ...TFTP Server No 123 udp NTP NTP Server No 161 udp SNMP XMS Server No 162 udp SNMP Traphost Note Up to four Traphosts may be configured XMS Server Yes but required by XMS 443 tcp HTTPS WMI WPR Client Y...

Страница 69: ...2000 tcp XMS Back end Server Internal No 3306 tcp MySQL Database Internal No 8001 tcp Status Viewer Internal No 8007 tcp Tomcat Shutdown Internal During installation 8009 tcp Web Container Internal Du...

Страница 70: ...Wireless Array 50 Installing the Wireless Array See Also Management Control External Radius Services VLAN Management...

Страница 71: ...good for small deployments one or two units Centralized Web based management using the optional Xirrus Management System XMS which can be run on a dedicated Xirrus appliance or your own server The XMS...

Страница 72: ...ure 28 WDS features include One to three IAPs may be used to form a single WDS link yielding up to 1350 Mbps bandwidth per link Up to three different WDS links may be created on a single Array Automat...

Страница 73: ...3 Figure 29 A Multiple Hop WDS Connection Multiple WDS links can provide link redundancy failover capability see Figure 30 A network protocol Spanning Tree Protocol STP prevents Arrays from forming ne...

Страница 74: ...ame way that a station associates to an IAP The client side of the link must be configured with the root MAC address of the target host Array A WDS Host Link acts like an IAP by allowing one WDS Clien...

Страница 75: ...lanning Security Planning Function Number of Wireless Arrays One or Two Three or More Power Power over Gigabit Ethernet Power over Gigabit Ethernet UPS backup recommended Failover Recommended Highly r...

Страница 76: ...network Figure 31 Installation Workflow See Also Coverage and Capacity Planning Deployment Examples Determine the number of Arrays needed Choose the location s for your Wireless Arrays Install the mou...

Страница 77: ...ess Array Installing the Wireless Array 57 Common Deployment Options Failover Planning Installation Prerequisites Planning Your Installation Power Planning Wireless Array Product Overview Security Pla...

Страница 78: ...designed to be mounted on a ceiling where the unit is unobtrusive and wireless transmissions can travel unimpeded throughout open plan areas You also have the option of mounting the Array on a wall u...

Страница 79: ...abit POE2 For Arrays with a second POE port the same restrictions listed above apply Serial cable optional cable lengths up to 25 per the RS 232 specification Important Notes About Network Connections...

Страница 80: ...Wireless Array 60 Installing the Wireless Array See Also Failover Planning Installation Prerequisites Installation Workflow Mounting the Array Power over Gigabit Ethernet PoGE...

Страница 81: ...ymnasium mount Factory enclosure A detailed Quick Installation Guide is provided with the mounting option that you selected when ordering your Array Please follow the provided instructions carefully D...

Страница 82: ...ess and following a successful boot will provide extensive status information Figure 33 LED Locations Array LED settings may be altered or disabled entirely for diagnostic purposes or for personal pre...

Страница 83: ...tatus LED IAP LEDs Power ON Blinking GREEN All OFF Boot loader power ON self test Blinking GREEN All ON Image load from compact FLASH Blinking GREEN Spinning pattern rotate all to ON then all to OFF I...

Страница 84: ...P is up but no associations and no traffic IAP LED heartbeat IAP is up with stations associated but no traffic IAP LED flashing Flashing at 10 Hz Flashing at 5 Hz Flashing at 2 5 Hz IAP is up passing...

Страница 85: ...ay use the CLI via the serial management port console on all Arrays except the XR 1000 Series or any of the Gigabit Ethernet ports You can use the WMI via any of the Array s Ethernet ports Figure 34 N...

Страница 86: ...2 1 If the Array is connected to a network that provides DHCP addresses the IP address can be determined by the following three methods 1 The simplest way to address the Array is using its default ho...

Страница 87: ...ing the Express Setup Procedure Powering Up the Wireless Array Entering the License A license is needed to operate the Wireless Array at full functionality Without a license the Array may only be powe...

Страница 88: ...e key was provided to you in an email as an attachment in the form of an Excel file xls Enter the key exactly as it appears in the file Click the Upgrade button to apply the key 4 Now you may verify t...

Страница 89: ...ess Array 69 Performing the Express Setup Procedure The Express Setup procedure establishes global configuration settings that enable basic Array functionality Changes made in this window will affect...

Страница 90: ...ail Enter the email address of the admin contact you entered in Step 3 5 Admin Phone Enter the telephone number of the admin contact you entered in Step 3 6 License Key If Xirrus issued you a license...

Страница 91: ...the router that the Array uses to forward data to other networks Click the Apply button for this interface when done making IP changes 9 SSID Settings This section specifies the wireless network name...

Страница 92: ...ronger data protection and network access control It offers Enterprise and consumer Wi Fi users with a high level of assurance that only authorized users can access their wireless networks Like WPA WP...

Страница 93: ...e configuration of the Array If you wish the new account to have different privileges select the desired level from the drop down list For more information about user privileges please see Admin Privi...

Страница 94: ...If you are using NTP enter the IP address or domain name of the NTP server f NTP Primary Authentication If you are using authentication with NTP select the type of key MD5 or SHA1 Select None if you a...

Страница 95: ...adjust the current date this box should be left unchecked default 12 IAP Settings Enable Configure All IAPs Click on the Execute button to enable and auto configure all IAPs a message displays the cou...

Страница 96: ...eally only necessary if Xircon is enabled There aren t other ways to get at XBL that would benefit from securing the password Xirrus also provides the Xircon utility for connecting to Xirrus XR Arrays...

Страница 97: ...edure for Securing Low Level Array Access Use the following steps to replace the default XBL username and password and optionally to change the type of Xircon management access that is allowed These s...

Страница 98: ...newusername config boot env set password newpassword config save 5 Enter the following commands if you wish to change Xircon access permission config management config mgmt xircon management status co...

Страница 99: ...irrus Wireless Array s embedded Web Management Interface WMI used for establishing your network s configuration settings and wireless operating parameters It also includes login instructions The follo...

Страница 100: ...verview The WMI is an easy to use graphical interface to your Wireless Array It allows you to configure the product to suit your individual requirements and ensure that the unit functions efficiently...

Страница 101: ...Network Map Spanning Tree Status Routing Table ARP Table DHCP Leases Connection Tracking NAT CDP Neighbors Network Assurance RF Monitor Windows IAPs Spectrum Analyzer Intrusion Detection Channel Histo...

Страница 102: ...t Global Settings External Radius Internal Radius Rogue Control List SSIDs SSID Management Active IAPs Per SSID Access Control List Groups Group Management Configuration Windows cont d IAPs IAP Settin...

Страница 103: ...igned with simplicity in mind making navigation quick and easy In the following example you ll see that windows are divided into left and right frames Figure 40 WMI Frames Left frame Right frame Array...

Страница 104: ...session organized into Critical Warning and General messages Click on a counter to display the associated Syslog messages Messages at the selected level or higher will be shown For more information pl...

Страница 105: ...left frame Clear screen when loading new page See Options on page 333 for more information Utility Buttons At the bottom of each window you will find a set of useful buttons a Feedback button a Print...

Страница 106: ...local printer Click on the Help button to access the Array s online help system Submitting Your Comments When submitting comments via the Feedback button Figure 43 ensure that you provide as much det...

Страница 107: ...Interface enter admin for both the user name and password Figure 44 Logging In to the Wireless Array Applying Configuration Changes In most of the WMI configuration windows your changes to settings a...

Страница 108: ...ll save the entire current configuration not only the changes on current WMI page Character Restrictions When inputting strings in the WMI for example assigning SSIDs host name password etc use common...

Страница 109: ...avigation tree in the left frame of the WMI Array Status Windows on page 90 Network Status Windows on page 97 RF Monitor Windows on page 107 Station Status Windows on page 118 Statistics Windows on pa...

Страница 110: ...information for the Array in text format Admin History shows all current and past logins since the last reboot Array Summary This is a status only window that provides a snapshot of the global configu...

Страница 111: ...e Auto Neg Shows whether auto negotiation is in use on this interface to determine settings for speed parity bits etc LED Shows whether LED display of interface status is enabled Link Shows whether th...

Страница 112: ...whether mirroring is enabled on this bond Integrated Access Points Section This section provides information about the Integrated Access Points IAPs that are contained within the Array How many IAPs...

Страница 113: ...that the IAP has been configured to support Antenna Shows which antenna is being used by each IAP Cell Size Indicates which cell size setting is currently active for each IAP small medium large max au...

Страница 114: ...tions are currently associated with each IAP XN Arrays can handle up to 96 concurrent users per individual IAP thus 16 port XN models can handle 1536 users per Array WDS Link Distance The WDS Link on...

Страница 115: ...estamps and current internal temperatures and fan speed Note that the License Features row lists the features that are supported by your Array s license See About Licensing and Upgrades on page 321 an...

Страница 116: ...ot Factory displays the configuration established at the factory Figure 49 Show Configuration If you want to see just the differences between the Running Saved Lastboot and Factory configurations you...

Страница 117: ...istory Network Status Windows The following Network Status windows are available Network displays a summary of network interface settings Network Map displays information about this Array and neighbor...

Страница 118: ...ablished for Array s wired interfaces This includes the Gigabit interfaces and their bonding settings DNS Settings are summarized as well You can click on any item in the Interface or Bond columns to...

Страница 119: ...nd icon Click Refresh to update the information at any time Click Auto Refresh to instruct the Array to refresh this window automatically Content of the Network Map Window By default the network map s...

Страница 120: ...ou whether the Array is within wireless range of another Wireless Array Fast Roam Informs you whether or not the Xirrus fast roaming feature is enabled This feature utilizes the Xirrus Roaming Protoco...

Страница 121: ...IAP Info enabled by default Enable disable display of the IAP Up columns Stations Stations Tells you how many stations are currently associated to each Array To deauthenticate a station go to Stations...

Страница 122: ...forces certain redundant data paths into a standby blocked state If one segment in the spanning tree becomes unreachable the spanning tree algorithm reconfigures the network topology and reestablishe...

Страница 123: ...Figure 54 Routing Table See Also VLANs Configuring VLANs on an Open SSID ARP Table This status only window lists the entries in the Array s ARP table For a device with a given IP address this table l...

Страница 124: ...s valid The same IP address is normally renewed at the expiration of the current lease Figure 56 DHCP Leases See Also DHCP Server Connection Tracking NAT This status only window lists the session conn...

Страница 125: ...sco Discovery Protocol CDP Figure 58 CDP Neighbors The Array performs discovery on the network on an ongoing basis This list shows the devices that have been discovered Cisco devices and other devices...

Страница 126: ...ray checks connectivity to network servers that you have configured for example DNS and NTP servers on an ongoing basis For each server this list shows the server s host name if any IP address and sta...

Страница 127: ...f the Array s IAPs Spectrum Analyzer displays current statistics and RF measurements for each of the Array s channels Intrusion Detection displays rogue APs that have been detected by the Array Channe...

Страница 128: ...a cumulative total To graph these values over time for a particular channel see Channel History on page 114 For detailed information on the measurements displayed please see Spectrum Analyzer Measure...

Страница 129: ...dio This differs from the RF Monitor IAPs window which displays values measured by each IAP radio for its current assigned channel For the spectrum analyzer the monitor radio is in a listen only mode...

Страница 130: ...To display horizontal bar graphs click the Rotate checkbox at the bottom of the data window In the rotated view if you wish to view data as a numerical table click the Text checkbox Click again to re...

Страница 131: ...second on the channel both valid and errored packets Bytes Sec Total number of wireless bytes per second on the channel valid packets only 802 11 Busy Percentage of time that 802 11 activity is seen o...

Страница 132: ...lue means no data rate information was available for the interval A higher date rate above 6 Mbps typically indicates user data traffic on the channel Otherwise the data rate reflects control packets...

Страница 133: ...lassify them with the following actions Approve Set Known Block or Set Unknown You can sort the results based on the following parameters by clicking the desired column header You can refresh the list...

Страница 134: ...ings is added every 10 seconds for a 5 GHz channel or every 5 seconds for a 2 4 GHz channel For descriptions of the measurements displayed please see Spectrum Analyzer Measurements on page 111 Figure...

Страница 135: ...mn In other words the graph for each statistic will grow down the page as new readings display at the top Figure 65 Figure 65 RF Monitor Channel History Rotated If you select Rotate and Text together...

Страница 136: ...ction if a problem is detected Note that radio assurance requires RF Monitor Mode to be enabled in Advanced RF Settings to turn on self monitoring functions It also requires a radio to be set to monit...

Страница 137: ...any that radio assurance has performed each of the following types of resets since the last reboot as described in Radio Assurance Monitor Beacon Phy MAC System i e reboot the Array See Also IAPs Xirr...

Страница 138: ...isplays the SNR at each of the Array s IAPs Noise Floor for each associated station this displays the ambient noise silence value at each of the Array s IAPs Max by IAP for each IAP this shows the his...

Страница 139: ...number of additional columns Identification shows more identifying information for the station its User Name Host Name Manufacturer Device Type and Device Class for example notebook iPad etc Security...

Страница 140: ...ay to refresh this window automatically See Also Access Control List Station Status Windows Location Map The Location Map shows the approximate locations of stations relative to this Array The locatio...

Страница 141: ...mize a station that is not of interest by clicking it There is also a Minimize All button You may replace the range finder background image above with your own custom image of the floorplan of the are...

Страница 142: ...ll rectangles clear the Minimize All checkbox Preferred Label This field is located on the top of the window towards the right It selects the type of label to be displayed for stations Netbios Name IP...

Страница 143: ...m image click the Upload button to install it The map is redisplayed with your new background No hash marks for the map scale are added to the image display Reset Click this button to restore the map...

Страница 144: ...Total Stations These view only values show the station counts observed by the Array See Also Station Status Windows Working with the Custom Image After you have uploaded a custom image see Custom Imag...

Страница 145: ...Stations as well with a checkbox at the bottom of the window Figure 72 Station RSSI Values By default the RSSI is displayed numerically You may display the relative strength using color if you select...

Страница 146: ...view you may sort the rows based on any column that has an active column header indicated when the mouse pointer changes to the hand icon Click on the Refresh button to refresh the station list or cli...

Страница 147: ...uce sources of noise in the environment and or improve the signal from the station Figure 74 Station Signal to Noise Ratio Values You may choose to display Unassociated Stations as well with a checkbo...

Страница 148: ...iew you may sort the rows based on any column that has an active column header indicated when the mouse pointer changes to the hand icon Click on the Refresh button to refresh the station list or clic...

Страница 149: ...se of poor performance A relatively high value means that action may need to be taken to reduce sources of noise in the environment Figure 76 Station Noise Floor Values You may choose to display Unass...

Страница 150: ...ar view you may sort the rows based on any column that has an active column header indicated when the mouse pointer changes to the hand icon Click on the Refresh button to refresh the station list or...

Страница 151: ...our day week month and year In other words the Max Station Count shows the high water mark over the selected period of time the maximum count of stations for the selected period rather than a cumulati...

Страница 152: ...that a station has reached the threshold value for one or more of the issues checked it adds the station to this page In addition an event is triggered a trap is generated and a Syslog message is logg...

Страница 153: ...and start fresh to add problem stations to the list as they are detected Click on the Refresh button to refresh the station list or click Auto Refresh to instruct the Array to refresh this window auto...

Страница 154: ...tistics provides statistical data for all configured filters Station Statistics provides statistical data associated with each station IAP Statistics Summary This is a status only window that provides...

Страница 155: ...ll show the sum of that statistic for all IAPs For a summary of statistics for all IAPs see IAP Statistics Summary on page 134 Use the Display Percentages checkbox at the lower left to select the outp...

Страница 156: ...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 You can also click in the Auto Refresh check box to instru...

Страница 157: ...dow 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 You can also click in the Auto Refresh check box...

Страница 158: ...with your assigned VLANs You can refresh the information that is displayed on this page at any time by clicking on the Refresh button or select the Auto Refresh option for this window to refresh auto...

Страница 159: ...ient and host links To access data about a specific WDS client or host link simply click on the desired link in the left frame to access the appropriate window You may also choose to view a sum of the...

Страница 160: ...a filter name to edit the filter settings Figure 85 Filter Statistics See Also Filters Station Statistics This status only window provides an overview of statistical data for all stations Stations ar...

Страница 161: ...tics window click the MAC address of the desired entry in the Station column to display its Per Station Statistics window Receive and Transmit statistics are listed by Rate this is the data rate in Mb...

Страница 162: ...l of the minimum priority level displayed For example you may choose under Services System Log to log messages at or above Debug level but use Filter Priority to display only those at Information leve...

Страница 163: ...light Event field if you wish to highlight all events of one particular type in the list Click on the Refresh button to refresh the message list or click the Auto Refresh check box to instruct the Arr...

Страница 164: ...Viewing Status on the Wireless Array Current the count of this type of event for the current period Average the average count per period of this type of event Maximum the maximum count per period of...

Страница 165: ...Wireless Array Viewing Status on the Wireless Array 145 Use this Space for Your Notes...

Страница 166: ...Wireless Array 146 Viewing Status on the Wireless Array...

Страница 167: ...s on page 246 IAPs on page 253 WDS on page 302 Filters on page 308 Clusters on page 314 After making changes to the configuration settings of an Array you must click on the Save changes to flash butto...

Страница 168: ...eless Array This chapter only discusses using the configuration windows on the Array To view status or use system tools on the Array please see Viewing Status on the Wireless Array on page 89 Using To...

Страница 169: ...e Wireless Array 149 Express Setup Use the Express Setup page to establish global configuration settings that enable basic Array functionality Any changes you make in this window will affect all radio...

Страница 170: ...ring the Array at the designated location 4 Admin Email Enter the email address of the admin contact you entered in Step 3 5 Admin Phone Enter the telephone number of the admin contact you entered in...

Страница 171: ...s that are available on the routed subnet where the Array is located Default Gateway Enter a valid IP address for the default gateway This is the IP address of the router that the Array uses to forwar...

Страница 172: ...Wi Fi Protected Access 2 WPA2 is the follow on security method to WPA for wireless networks and provides stronger data protection and network access control It offers Enterprise and consumer Wi Fi use...

Страница 173: ...e able to change the configuration of the Array If you wish the new account to have different privileges select the desired level from the drop down list For more information about user privileges ple...

Страница 174: ...ct Yes the NTP server fields are displayed If you don t want to use an NTP server select No default and set the system time on the Array manually e NTP Primary Server If you are using NTP enter the IP...

Страница 175: ...s box if you want to adjust the current system date When the box is checked the date fields become active Enter the revised date month day and year in the corresponding fields If you don t want to adj...

Страница 176: ...any of the settings displayed here configuration changes cannot be made from this window You can click on any item in the Interface column to jump to the associated configuration window Figure 91 Netw...

Страница 177: ...nterfaces XR 1000 and XR 2000 Series Arrays have one Gigabit Ethernet interface while XR 4000 Series Arrays have two and XR 6000 Series models have four This window allows you to establish configurati...

Страница 178: ...e Array Figure 93 Network Interface Ports Procedure for Configuring the Network Interfaces Configure the Gigabit network interfaces The fields for each of these interfaces are the same and include 1 E...

Страница 179: ...ansmission in one direction at a time only for example a walkie talkie is a half duplex device If the Auto Negotiate feature is disabled you can manually choose Half or Full duplex for your data trans...

Страница 180: ...rmanent See Also Network Bonds DNS Settings Network Network Statistics Spanning Tree Status Network Bonds On models with more than one Gigabit port these ports may be bonded i e configured to work tog...

Страница 181: ...ng options For a more detailed discussion of the use of the Gigabit ports and the options below please see the Xirrus Gigabit Ethernet Port Modes Application Note in the Xirrus Resource Center The mod...

Страница 182: ...occurs in this mode Gigabity issues gratuitous ARPs to allow it to substitute for Gigabitx at Layer 3 as well as Layer 2 See Figure 95 a Are more than 2 ports in this bond OK How would it work Figure...

Страница 183: ...ination port number are all used to do the calculation The network switch must also support 802 3ad If a port fails the trunk degrades gracefully the other port still transmits See Figure 95 b c Trans...

Страница 184: ...lancing and fault tolerance See Figure 97 d 2 Bond Ports Select the ports to be members of this bond for the behavior specified by Bond Mode By default Bondn contains only the Gign port for convenienc...

Страница 185: ...ently defined VLANs and only this set until you make explicit changes to the Active VLANs list If you create new VLANs they will not be passed unless you take action to add them to the list All OK 5 I...

Страница 186: ...less Array Figure 98 Mirroring Traffic 6 When done configuring bonds as desired click Save changes to flash if you wish to make your changes permanent See Also Network Interfaces DNS Settings Network...

Страница 187: ...are not used by wireless clients servers for stations associated to the Array are defined along with DHCP pools See DHCP Server on page 182 At least one DNS server must be set up if you want to offer...

Страница 188: ...h to make your changes permanent See Also DHCP Server Network Network Interfaces Network Statistics Spanning Tree Status CDP Settings CDP Cisco Discovery Protocol is a layer 2 network protocol used to...

Страница 189: ...default is 60 seconds 3 CDP Hold Time CDP information received from neighbors is retained for this period of time before aging out of the Array s neighbor list Thus if a neighbor stops sending announ...

Страница 190: ...whether the pool is enabled the IP address range the gateway address lease times and the DNS domain being used There are no configuration options available in this window but if you are experiencing i...

Страница 191: ...uthentication with NTP to ensure that you are receiving synchronization from a known source For example the instructions for requesting a key for the NIST Authenticated NTP server are available at htt...

Страница 192: ...unchecked default b Adjust Date month day year If you are not using NTP check this box if you want to adjust the current system date When the box is checked you may enter a revised date month day and...

Страница 193: ...s you to enable or disable the sending of NetFlow information to a designated collector NetFlow is a proprietary but open network protocol developed by Cisco Systems for collecting IP traffic informat...

Страница 194: ...If you enabled NetFlow enter the domain name or IP address of the collector 3 NetFlow Collector Port If you enabled NetFlow enter the port on the collector host to which to send data Some features suc...

Страница 195: ...re for Configuring Wi Fi Tag 1 Enable Wi Fi Tag Choose Yes to enable Wi Fi tag functionality or choose No to disable this feature 2 Wi Fi Tag UDP Port If you enabled Wi Fi tagging enter the port on th...

Страница 196: ...yslog service will send Syslog messages that are at the selected severity or above to the defined Syslog servers and email address Figure 106 System Log Procedure for Configuring Syslog 1 Enable Syslo...

Страница 197: ...g parameters allow you to send an email to a designated address each time a Syslog message is generated The email will include the text of the Syslog message a Email Syslog SMTP Server Address Hostnam...

Страница 198: ...be stored on the Array s internal Syslog file choose your preferred level of Syslog reporting from the pull down list The default level is Debugging and more serious c Primary Server Choose the prefe...

Страница 199: ...nger security You may enable either SNMP version neither or both Complete SNMP details for the Array including trap descriptions are found in the Xirrus MIB available at support xirrus com in the Down...

Страница 200: ...lt for this feature is Yes enabled 5 Authentication Select the desired method for authenticating SNMPv3 packets SHA Secure Hash Algorithm or MD5 Message Digest Algorithm 5 6 Privacy Select the desired...

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