Table Of Contents
Release Notes for Cisco 2700 and 2710 Location Appliances for Software Release 220.127.116.11
November 6, 2007
These release notes describe features, enhancements, and caveats for software release 18.104.22.168 for Cisco Location Appliances. This release of location appliance software supports both Cisco 2700 and 2710 location appliances and operates with Cisco Wireless LAN Solution versions 4.1, 4.0, 3.2, and 3.1.
Note Refer to the online version of the Cisco 2700 Series Location Appliance Installation and Configuration Guide for details on the physical installation and initial configuration of the location appliance at http://www.cisco.com/en/US/products/ps6386/prod_installation_guides_list.html
These release notes contain the following sections:
Location appliance software release 22.214.171.124 supports Cisco 2700 and 2710 location appliances that operate with Cisco Wireless LAN Solution versions 4.1, 4.0, 3.2, and 3.1.
Location appliances compute, collect, and store historical location data using Cisco wireless LAN controllers and access points to track the physical location of wireless devices. The collected location data can be viewed in GUI format in the Cisco Wireless Control System (WCS), the centralized WLAN management platform.
You can install this software release on any 2700 or 2710 location appliance.
Table 1 describes compatibility between WCS and location server versions.
Table 1 WCS and Location Server Compatibility Matrix
WCS \ Location Server LOC 1.1 LOC 1.2 LOC 2.0 LOC 2.1 LOC 3.0
Supported from WCS 126.96.36.199 onward3
Supported from WCS 188.8.131.52 onward3
Supported from WCS 184.108.40.206 onward3,6,8
Supported3, 4, 5
Supported2, 3, 4, 5,6
Supported3, 4, 5, 7
1 Certain antenna attributes are ignored by WCS.
2 Certain antenna attributes are ignored by the location server.
3 Asynchronous notification features are ignored by the location server.
4 Backup and restore operations for the location server may time out.
5 Searching for elements by a specific MAC address or asset name will not work until the location server SW is upgraded.
6 Battery level and location notification update features are ignored by the location server. Location smoothing parameters and contributing access point debug options are ignored by the location server.
7 Battery level and location notification update features are ignored by Cisco WCS. Location smoothing parameters and contributing access point debug options are ignored by Cisco WCS.
8 CCX tags, telemetry, chokepoint, and emergency capabilities are ignored by Cisco WCS.
9 CCX tags, telemetry, chokepoint, and emergency capabilities are ignored by the location server.
Upgrading to this Software Release
For instructions on using either Cisco WCS or a console port to download this software on location appliances, refer to the "Updating Location Appliance Software" section in the "Installation and Configuration" chapter of the Cisco 2700 Series Installation and Configuration Guide (78-17180-02 and later).
Click this link to browse to that document:
Backup of Release 2.0.x or Later Cannot be Restored on Earlier Releases
A backup of location appliance software releases 2.0.x and later cannot be restored on any location appliance running an earlier software release. Before you upgrade a location appliance to 2.0.x release or later, Cisco recommends that you create a backup of the earlier release and archive it. This will enable you to convert an upgraded system to an earlier release, if necessary.
Location Appliance Image is Compressed
If you download the server image *.gz file using WCS, the location appliance automatically decompresses (unzips) it, and you can proceed with the installation as before. If you manually download the compressed *.gz file using FTP, you must first decompress the files before running the installer. These files have been compressed under the LINUX operating system and must be decompressed using the gunzip utility program. The unzip method you use is defined by the filename you are trying to unzip. To make the bin file executable, use the following command:
chmod +x filename.bin
Secure Shell V1.0 is No Longer Supported
Support for secure shell (SSH) version 1 (v1) is not supported in releases 2.1.x and later due to known security issues; however, SSH v2 is supported.
Note After installing release 220.127.116.11, you must reboot the location appliance to remove support of SSH v1.
Note To remove SSH support for releases 2.0.x and earlier, you must manually edit the sshd_config file to remove support for SSH v1 by adding Protocol 2 to the end of the script as noted below.
#override default of no subsystems
Subsystem sftp /usr/libexec/openssh/sftp-server
•With this addition, the script will match that of releases 2.1.x and later.
•A restart is required to reread the config file after the edit is made.
Updated Location Appliance Software Version Shown in WCS After Polling
After a software update, the new location appliance software version does not immediately appear in location server queries on WCS. Up to five minutes is required for the new version to appear. WCS, by default, queries the location appliance every five minutes for status.
This section describes important information about new features and operational notes for software release 18.104.22.168 for location appliances.
The following operational notes are relevant to this release.
Mandatory Default Root Password Change
You must change the default root password during initial configuration of the location appliance to ensure optimum network security.
•For releases 2.1.34 and later, you are prompted to change the password during the setup script.
•You can also change the password using the Linux command, "passwd."
Mandatory Upgrade of Location Software Required to Reflect New 2007 Daylight Saving Time Dates
The United States has changed the start and end dates of Daylight Saving Time (DST) for 2007. In 2007, DST within the US will begin on the second Sunday in March and end on the first Sunday in November. A mandatory upgrade to release 22.214.171.124 or greater which incorporates support for this new DST period is required to prevent incorrect time reporting during certain periods of DST. Specifically, not upgrading your location appliance to version 126.96.36.199 will result in incorrect time reporting from March 11, 2007 through April 2, 2007 and from October 29, 2007 through November 4, 2007.
Automatic Installation Script for Initial Setup
Beginning with release 2.1.34, an automatic setup wizard is available to step you through the initial setup of the location appliance. You also have the option of setting up the location appliance manually.
An example of the complete automatic setup script (and manual setup process) is provided in the Cisco 2700 Series Installation and Configuration Guide. You can find this document online at http://www.cisco.com/en/US/products/ps6386/prod_installation_guides_list.html.
Location History Timestamps Match Browser's Locale
The WCS timestamp is based on the browser's location and not on the location appliance settings. Changing the time zone of the WCS or on the location appliance does not change the timestamp for the location history.
Recommended Settings for Absolute and Relative Discard RSSI Times (Location Parameters)
No value less than the default value of 3 minutes should be set for Relative Discard RSSI Time.
No value less than the default value of 60 minutes should be set for Absolute Discard RSSI Time.
Path: Location > Location Server > Location Server > Advanced> Location Parameters
Recommended Wireless Adapter Clients for Calibration
We recommend using Cisco Aironet 802.11 a/b/g Wireless Cardbus Adapter Clients (AIR-CB21AG) with the latest drivers for calibrating location models. The client should be CCX compatible and version 2 or greater. Adapter client versions less than 2.0 are not ideal for calibration.
Recovering Lost Root Password
If you lose or forget the root password for the location appliance, do the following:
Step 1 When the GRUB screen comes up, press Esc to enter the boot menu.
Step 2 Press e to edit.
Step 3 Navigate to the line beginning with "kernel," and press e.
At the end of the line enter a space and the number one (1). Press Enter to save this change.
Step 4 Press b to begin boot sequence.
At the end of the boot sequence, a shell prompt appears.
Step 5 You can change the root password by entering the passwd command.
Step 6 Enter and confirm the new password.
Step 7 Restart the machine.
Assign a Controller/Network Design/Event Group to a Location Appliance Before Using Auto-Synch
With auto-synchronization, controllers, network designs, and event groups that are detected as unsynchronized are synchronized automatically. Before this automatic synchronization can be enabled, you must assign a controller, event group, or network design to a location appliance.
Controller Name Must be Unique Before Synchronization
The assigned controller names must be unique. If the controller names are duplicated, the synchronization process occurs only on one controller.
Verify WCS and Location Server Software Compatibility Before Synchronization
The software versions for WCS and the location server must be compatible for synchronization to perform properly. Please see the compatibility matrix noted in Table 1 of this release note for WCS and location server compatibility.
New Feature Support
Please note the new feature support added in release 3.0:
Chokepoint and Emergency Notifications for CCXv1 Asset Tags (NEW Notification Parameter)
You can add chokepoint and emergency event definitions on a per-group basis and define what conditions trigger an event notification. Chokepoint and emergency notifications are only reported for CCXv.1 compliant tags.
Refer to the "Adding an Event Definition" section in Chapter 6 of the Cisco Location Appliance Configuration Guide, Software Release 3.0.
Path: Location > Notifications > Settings > Group Name > Add Event Definition
Chokepoint Mapping to Enhance Tag Location Reporting (NEW Configure Parameter)
Installation of chokepoints within a network provides enhanced location information for active RFID tags. When an active CCX version 1 compliant RFID tag enters the range of a chokepoint, it is stimulated by the chokepoint. The MAC address of this chokepoint is then included in the next beacon sent by the stimulated tag. All access points that detect this tag beacon then forward the information to the controller and location appliance.
Using chokepoints in conjunction with active CCX compliant tags provides immediate location information on a tag and its asset. When a CCX tag moves out of the range of a chokepoint, its subsequent beacon frames do not contain any identifying chokepoint information. Location determination of the tag defaults to the standard calculation methods based on RSSIs reported by access point associated with the tag.
Note Chokepoints are initially configured for IP address and Range by the chokepoint vendor's application. Chokepoints must be added and positioned in Cisco WCS.
Refer to the "Refer to the "Adding Chokepoints to the WCS Database and Map" section in Chapter 7 of the Cisco Location Appliance Configuration Guide, Software Release 3.0."
Path: Configure > Chokepoints > Add Chokepoint
Email Notifications for Location Server Alarms (NEW Alarm Parameter)
Cisco WCS lets you send alarm notifications to a specific email address. Sending notifications through
email enables you to take prompt action when needed.You can select the alarm severity types (critical, major, minor and warning) that are emailed to you.
Refer to the "Emailing Alarm Notifications" section in Chapter 8 of the Cisco Location Appliance Configuration Guide, Software Release 3.0.
Path: Monitor > Alarms > Email Notifications
Excluding Ad Hoc Client Tracking and Reporting (NEW Polling Parameter)
You can turn off tracking of ad hoc rogue clients so that they are not displayed on Cisco WCS maps or their events and alarms reported.
Refer to the "Editing Polling Parameters" section in Chapter 4 of the Cisco Location Appliance Configuration Guide, Software Release 3.0.
Path: Location > Location Servers > Location Server > Polling Parameters
Location Protocol (LOCP) (NEW Advanced Menu Parameter)
LOCP is the location protocol that manages communication between the location server and the controller. Transport of telemetry, emergency and chokepoint information between the location server and the controller is managed by this protocol.
You can configure its parameters to adjust for slow response in latency in the network.
Refer to the "Editing LOCP Parameters" section in Chapter 4 of the Cisco Location Appliance Configuration Guide, Software Release 3.0.
Path: Location > Location Servers > Location Server > Advanced > LOCP Parameters
Location Server Utilization Report (NEW Report)
In Cisco WCS, you can generate a utilization report for a location server. By default, reports are stored on the Cisco WCS server.
The location utilization report summarizes and charts the following information in two separate charts for a prescribed period of time:
•Chart 1 summarizes and graphs CPU and memory utilization
•Chart 2 summarizes and graphs client count, tag count, rogue client count, rogue access point count and ad hoc rogue count
You can generate a utilization report for the location server on both an immediate and scheduled basis. Once defined, the report can be saved for future diagnostic use on an ad hoc basis or scheduled to run and report on a regular basis.
Refer to the "Generating Reports" section in Chapter 8 of the Cisco Location Appliance Configuration Guide, Release 3.0.
Path: Report > Performance Reports > Location Server Utilization
Overlapping Tags (NEW Monitor Parameter)
When multiple tags are within close proximity of one another a summary tag is used to represent their location on a WCS map. The summary tag is labeled with the number of tags at that location. When you move the mouse over the overlapping tag on the map, a panel appears with summary information for the overlapping tags. A distinct panel exists for each overlapping tag.
Refer to the "Overlapping of Tags" section in Chapter 8 of the Cisco Location Appliance Configuration Guide, Release 3.0.
Path: Monitor > Maps
Query and Display of Telemetry Data for CCX v1 Compliant Tags (NEW Monitor Parameter)
You can query for telemetry capable data tags in WCS and display in the Tag Properties page those CCXv1 compliant attributes transmitted by the tags. Attributes which might display for the tags are GPS location, battery extended information, pressure, temperature, humidity, motion, status and emergency code.
Refer to the "Querying of Tags" section in Chapter 8 of the Cisco Location Appliance Configuration Guide, Release 3.0.
Path: Monitor > Tags > New Search
Screen and Path Changes
The following location appliance features are found on different Cisco WCS screens than in release 4.0 and release 2.1 for the location appliance.
•Analyzing Element Location Accuracy Using Testpoints
You can use this feature to validate location accuracy of rogue and non-rogue clients and asset tags information generated either automatically by access points or manually by calibration.
Refer to the "Analyzing Element Location Accuracy Using Testpoints" section in Chapter 7 of the Cisco Location Appliance Configuration Guide, Software Release 3.0 for more details
Path: Location > Location Servers > Advanced > Advanced Parameters and Monitor > Maps
•Polling frequency for location server, clients and tags
Configuring polling frequency for all elements is centrally managed on the Polling Parameters page.
Refer to the "Editing Polling Parameters" section in Chapter 4 of the Cisco Location Appliance Configuration Guide, Software Release 4.1 for more details.
Path: Location > Location Servers > Location Server > Polling Parameters
This section lists open and resolved caveats in location appliance release 188.8.131.52.
The following caveats are open (unresolved) in this release:
•CSCsd36689—Access points in monitor mode do not detect probing clients as accurately as they do when in local mode. These access points do not track the clients' RSSI values.
Workaround: Operate in local mode for the most accurate operation, if possible.
•CSCse34650—After performing a calibration using a CCX compatible client on a floor with multiple controllers, it has been observed that some access points do not contribute enough calibration data points. This inaccuracy may be reflected on the Location Inspector quality accuracy page.
Workaround: There is no known workaround.
•CSCsh47150—Moving a building from one location to another within a campus might cause synchronization issues. After moving a building within a campus, the synchronization page indicates that the building already exists and attempts to pull it, if you initiate a synchronization at that time it will result in an inaccurate mapping of access points.
•Workaround: Unassign the campus or building elements from the location server, then synchronize. Reassign the campus or building elements and then synchronize again.
•CSCsh79227—When connectivity between the location appliance and the controller is lost, alerts are not reported in WCS. Alerts are only reported when WCS loses connectivity to a controller.
Workaround: Check for connectivity between the location appliance and the controller. Also, check the location events table for SNMP unreachable messages.
•CSCsh95680—In some instances when WCS and the location appliance are in the same network, the location debug feature for the client which provides details on the signal strength and access point associated to that client, cannot hold an enabled state. A return to the Client Properties screen after enabling the feature, shows the feature not checked (disabled) and no RSSI information is seen on the map on the Client Properties page. This behavior has been observed when operating with Internet Explorer version 6.0 (6.0.2900.2180).
Workaround: Use another browser or another version of the Internet Explorer.
•CSCsi12681—In cases where secure shell (SSH) versions earlier than 4.2, which do not support the GSSAPIDelegateCredentials option, are installed on the location appliance, third party security scanners might indicate security issues.
Workaround: Manually close all open ports on the location appliance and upgrade the location appliance SSH to version 4.2.
•CSCsi14370—The Reboot Hardware button found on the Location > Location Server > Advanced > Advanced page in Cisco WCS does not immediately reboot the location appliance.
Workaround: To immediately reboot a location appliance, use SSH to reboot the location appliance from within the shell using the following command: reboot - h.
•CSCsi17755—When updating the time manually in the location appliance to adjust for daylight savings time, WCS does not display the manually entered time. The time remains one hour off.
Workaround: Do not manually adjust the time on the location appliance for daylight savings time. The system adjusts automatically to daylight savings time.
CSCsi19341—When using SNMP version 1 with Cisco WCS, the location appliance fails to track clients.
Workaround: Use either SNMP version 2c or version 3 with Cisco WCS and the controller.
•CSCsi21064—Chokepoint heatmap circle on the map does not automatically resize after using the zoom in and out feature. Chokepoint mapping is only accurate when displaying in the default map size.
•CSCsi24866— The telemetry status value is not correctly displayed by WCS when the value is at its possible maximum of FFFFFFFF. Errors are seen on the Tag Properties page (Path: Monitor > Tags > Tag Properties). All other values are correctly parsed and displayed.
•CSCsi34248—The test fire function does not work for location change and battery level notifications. Test-fire verifies that an event notification is sent by the location appliance when a defined event definitions is triggered.
•CSCsi45791—When the battery remaining percentage (%) value is unknown (binary 1111), WCS displays the battery remaining percentage (%) in the Battery Life field for CCXv1 asset tags as "-1%" rather than the correct value of "unknown."
•CSCsi46367— For some asset tags, the location history function (Monitor > Tags > Location History) does not automatically display any tag entries beyond the first listed when the play button is clicked.
Workaround: Click on the history item individually to retrieve information for the desired asset tag. You can access this information by selecting the Location History option from the Select a command drop-down menu on the Tag Properties page ((Path: Monitor > Tags > Tag).
•CSCsi51747—WCS does not display a tamper count for tampering notifications received from the CCXv1 tags.
The following caveats are resolved in this release:
•CSCsc09186—Previous to this release, when you performed a location calibration, the process of taking data points could take up to one minute per point if a single controller was unreachable.
•CSCsc39959—Previous to this release, an element search by MAC address or asset information might not have reflected all elements seen in maps and summary lists, when you were operating with WCS release 3.2 and location appliance release 1.x. An upgrade to location appliance release 2.0 was recommended.
•CSCse13406—Previous to this release, on rare occasions, when multiple users were collecting data points for calibration, a user attempting to add a data point might have seen a map image vanish when WCS was resident on a Windows OS machine. The following error message might have appeared, "Unexpected inability to imwrite calmodel progress image." This was a cosmetic issue only. This caveat did not affect functionality. The workaround involved navigating back to the calibration model and clicking save again; and, then continuing to add datapoints.
•CSCse60657—Previous to this release, in campus environments of 60 buildings or more with multiple-floors, some synchronization errors occurred on the location appliance given the number of images (floor) transferred. Location appliances, by design, are limited to 30 MB for each message transfer.
•CSCse76666—Previous to this release, when a location server was synchronizing with WCS and both polling and location calculation activities were active, a location appliance might have gone into a state in which no location calculations could occur. This intermittent condition could also happen when a heat map was generated. The condition did not occur if polling was turned "off."
•CSCse76683—Previous to this release, once the 2,500 limit of supported elements for the location appliance was met, no new location calculations were reported for any element beyond the 2,500 limit. Location calculations were reported once an element within the recognized 2,500 elements aged out. This condition occurred even when polling was turned "off."
•CSCse76793—Previous to this release, in some situations, the antenna name would not appear when you passed a mouse over a given access point on a map even though it did appear on the Position AP page.
•CSCsg15779—Previous to this release, the asset import function for location servers using WCS did not recognize empty lines in a file or spaces between elements; and, did not display an error when a value other than tag or station was seen in the class field.
•CSCsg33783—Previous to this release, you had to change the default root password during initial configuration of the location appliance to ensure optimum network security.
–For releases 2.1.34 and later, you are prompted to change the password during the setup script.
–You can also change the password using the Linux command, "passwd."
•CSCsg46529—Previous to this release, the "last located" information accessed and displayed for clients and tags from the map by mousing over their icons was older than their configured polling periods.
The following caveats were resolved in release 2.1.42 and are incorporated into this release:
•CSCsg44373—Previous to this release, calibration was failing because WCS was receiving an erroneous RSSI value of positive (+)127 from the controller. WCS now filters out all RSSI values greater than or equal to zero (0).
•CSCsg67865—Previous to this release, the start and stop dates of daylight savings time (DST) for 2007 were reflected inaccurately in the Java Runtime Environment (JRE) in the location appliance due to a recent United States mandate. In 2007, DST within the US will begin on the second Sunday in March and end on the first Sunday in November. A mandatory upgrade to release 184.108.40.206 which incorporates support for this new DST period is required to prevent incorrect time reporting during certain periods of DST. Specifically, not upgrading to your location appliance to version 220.127.116.11 or later will result in incorrect time reporting from March 11, 2007 through April 2, 2007 and from October 29, 2007 through November 4, 2007.
•CSCsg68493—Previous to this release, the location appliance exposed an incorrect API call that could be exercised by a partner application extracting maps and resulted in a performance impact. In some circumstances, frequent exercise of map extraction in large access point networks (1200+ access points) could halt the location appliance and make it unresponsive.
•CSCsg83691—Previous to this release, after completion of a full calibration, data point icons would display as generic icons instead of the recognized data point icon. This was seen when location quality was queried (Path: Inspect Location Quality > Calibration Model > Floor).
•CSCsg93752—Previous to this release, older versions of floor hierarchies that were stored in the memory cache of the location appliance were not cleared appropriately after their deletion or after resynchronization with WCS. This resulted in the display of older floor hierarchies on the element detail page of WCS.
The following caveats were resolved in earlier releases of 2.1.x and are incorporated into this release:
•CSCsc64772—Previous to this release, when aggressive polling or historical parameters were configured for the location server, such as polling for all element categories every 10 seconds and saving history points every minute, database operations would take longer to complete, and the server momentarily took longer to respond to requests.
•CSCsd03171—Previous to this release, enabling the Advanced Debug option caused the communication setting to reset to the default HTTP setting even when configured for HTTPS.
•CSCsd05107—Previous to this release, conducting a client search using the 802.11b/g protocol filter would list 802.11b users but not 802.11g users.
•CSCsd05623—Previous to this release, if the customer lost the root password for the location appliance, there appeared to be no documented password recovery.
This issue was addressed by adding specific documentation in the 2.048.0 and 18.104.22.168 location appliance release notes and onward and in the location appliance configuration guide (June 2006 and onward.)
•CSCsd29958—Previous to this release, if you modified SNMP access for a controller via WCS and pushed the changes to the location server, the changes did not take effect until you either restarted the location server or unassigned and reassigned the controller to the location server on the synchronization page.
•CSCsd91565—Previous to this release, the total count of installed 802.11 b/g clients displayed on the Client Summary page but did not display on the floor summary page (Monitor>Map).
•CSCsd95125—Previous to this release, the Client list would display the client on the correct floor; however, the mini-map would display the client on a different, incorrect floor. Links to the client's resident floor were also incorrect.
•CSCsd95144—Previous to this release, Location History would often report an incorrect 802.11 state for clients in the Location History table and in the Client Details page when you changed from associated to disassociated.
•CSCse12576—Previous to this release, during the calibration procedure, a CCX v.2 or later compatible client was recommended to take advantage of the latest features. Additionally, the Aironet information element (IE) option had to be enabled on the controller and the wireless LAN on which the client would communicate. If the Aironet IE option was disabled, the calibration procedure often did not generate sufficient data.
•CSCse22079—Previous to this release, you could not delete datapoints added during the calibration procedure.
•CSCse43442—Previous to this release, a logical condition prevented release of internal resources and threads would block up to two minutes when they logged errors. Errors logged included: (1) access points detected by controllers that were not yet assigned to maps; and (2) controllers synchronized for areas that had no maps or unsynchronized maps. The increased blocking time associated with error logging, increased the time required for location calculations and resulted in more infrequent location calculations and delayed information in the user interface and API.
If You Need More Information
If you need information about a specific caveat that does not appear in these release notes, you can use the Cisco Bug Toolkit to find caveats of any severity. Click this URL to browse to the Bug Toolkit:
(If you request a defect that cannot be displayed, the defect number might not exist, the defect might not yet have a customer-visible description, or the defect might be marked Cisco Confidential.)
For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at http://www.cisco.com/cisco/web/support/index.html. Click Technology Support, choose Wireless from the menu on the left, and click Wireless LAN.
A chapter was added to the Cisco Location Appliance Configuration Guide, Release 3.0 version to address location planning and verification. Refer to the Chapter 7 of that manual for details.
The following documents are related to location appliances:
•Cisco 2700 Series Location Appliance Installation and Configuration Guide
•Cisco Location Appliance Configuration Guide
•Cisco Wireless Control System Configuration Guide
•Cisco Wireless LAN Controller Command Reference
Note You can see the latest online versions of these documents at the following link: http://www.cisco.com/cisco/software/navigator.html
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
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