Table Of Contents
Release Notes for Cisco 2700 and 2710 Location Appliances for Software Release 18.104.22.168
Last Revised: December 22, 2008
These release notes describe features, enhancements, and caveats for software release 22.214.171.124 for Cisco Location Appliances. This release does not introduce new features; it is an update to release 126.96.36.199 that resolves defect CSCsm93369.
Note Location appliances are identified as location servers in Cisco WCS and in supporting documentation.
Note For details on compatibility with Cisco Wireless LAN Controllers and Cisco Wireless Control Systems (WCS), refer to the "System Requirements" section prior to installing this software.
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 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 Cisco WCS.
You can install this software release on any 2700 or 2710 location appliance.
Table 1 summarizes the controller and Cisco WCS software releases that are compatible with the location appliance.
Table 1 Minimum Software Requirements
System Minimum Software Release
5.0.148 and 4.2.x
Cisco WCS Navigator
Backwards Compatibility of Location Appliance Software
Location appliance software is backwards compatible with the previous two location appliance releases. Therefore, you can only upgrade two releases forward. For example, you can directly upgrade from release 3.0 or 3.1 to 4.0 but you cannot directly upgrade to release 4.0 from releases 1.1, 1.2, 2.0 or 2.1.
Upgrading to this Software Release
For instructions on using either Cisco WCS or a console port to download this software to 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. You can find this information at:
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 Cisco 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 are 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
Database File Must Be Copied to a Separate Directory Prior to Software Upgrade
To prevent an overwrite of the location appliance database during a software upgrade, you must back up (less than 8 GB) or copy (more than 8 GB) the database file server-eng.db to a secure location before installing software release 2.1.x or later.
Note Cisco recommends transfer of the database file using FTP or SFTP to a different machine or an /opt/backups directory to ensure a security.
Note After the new software is installed, you must transfer the database file server-eng.db back into the /opt/locserver directory.
•If the database file is less than 8 GB, backup the database file before installing the software.
•If the database file is more than 8 GB, enter the following commands to copy the database file server-eng.db to a secure directory. In the example below, /opt/backups is used as the target backup directory.mkdir /opt/backupscp /opt/locserver/db/linux/server-eng.db /opt/backupscp /opt/locserver/db/linux/solid.ini /opt/backupscp /opt/locserver/db/dbopts.db /opt/backups (if it exists)cp-r /opt/locserver/attach /opt/backups
–To transfer the database file server-eng.db back into the /opt/locserver directory after the software is installed, enter the following commands:cp /opt/backups/server-eng.db /opt/locserver/db/linux/cp /opt/backups/solid.ini /opt/locserver/db/linux/cp /opt/backups/dbopts.db /opt/locserver/db/linux/ (if it exists)cp-r /opt/backups/attach /opt/locserver/
Note The database file can be copied to any secure directory other than /opt/backups. For more details, refer to the WCS database backup and restore processes in Chapter 11 of the Cisco Wireless Control System Configuration Guide, Release 5.0: http://www.cisco.com/en/US/products/ps6305/products_installation_and_configuration_guides_list.html
Note To keep the database under 8 GB in size, you can reduce the frequency of polling for client and tag history and increase the frequency of history pruning to reduce the overall database size (Location > Location Servers > Administration > History Parameters).
Updated Location Appliance Software Version Shown in Cisco WCS After Polling
After a software update, the new location appliance software version does not immediately appear in location appliance queries on Cisco WCS. Up to five minutes is required for the new version to appear. Cisco WCS, by default, queries the location appliance every five minutes for status.
Synchronization Required After Upgrading SNMP Version
After upgrading from one SNMP version to another such as an upgrade from SNMP v2 to SNMP v3, manual resynchronization between the location appliance and controller is required to maintain connectivity.
If you have auto synchronization configured for the location appliance, this synchronization will automatically occur at the regularly scheduled interval; however, you will not have SNMP connectivity until that time. Refer to Chapter 3 of the Cisco Location Appliance Configuration Guide, Release 4.0 for more details. (CSCsl61808)
Secure Shell V1.0 is No Longer Supported
Support for secure shell (SSH) version 1 (v1) is not supported in releases 4.0, 3.1, 3.0, and 2.1 because of known security issues; however, SSH version 2 (v2) is supported.
Note After installing release 4.0, 3.1, 3.0, and 2.1, you must reboot the location appliance to remove support of SSH v1.
This section describes important information about new features and operational notes for software release 188.8.131.52 for location appliances.
The following operational notes are relevant to this release.
Mandatory Setting of Time Zone on Controllers
If a location appliance (release 3.1 or greater) is installed in your network and associated with a controller installed with release 4.2 or greater, it is mandatory that the time zone be set on the controller to ensure proper synchronization between the two systems, and a highly recommended setting in networks that do not have location appliances.
Universal Time Code (UTC) is used as the standard for setting the time zone system time of the controller.
You can automatically set the time zone during initial system setup of the controller or manually set it on a controller already installed in your network.
Note Refer to Chapter 3 of the Cisco Location Appliance Configuration Guide, Release 4.0 at the following link for configuration details: http://www.cisco.com/en/US/products/ps6386/products_installation_and_configuration_guides_list.html
Mandatory Default Root Password Change
You must change the default root password during initial configuration of the location appliance to ensure optimum network security.
•You are prompted to change the password during the setup script.
•You can also change the password using the Linux command, passwd.
Automatic Installation Script for Initial Setup
An automatic setup wizard is available to step you through the initial setup of the location appliance. You can also set 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:
Configuration Changes for Greater Location Accuracy
In some RF environments, where location accuracy is around 60 to 70% or where incorrect client or tag floor location map placements occur, you might need to modify the moment RSSI thresholds in the aes-config.xml file in the opt/locserver/conf/ directory of the location server (CSCsw17583).
The RSSI parameters that might need modification are:
Caution Please contact TAC for assistance in modifying these parameters.
Location History Timestamps Match Browser's Location
The Cisco WCS timestamp is based on the browser's location and not on the location appliance settings. Changing the time zone of the Cisco WCS or on the location appliance does not change the timestamp for the location history.
PDAs with Limited Probe Requests Might Affect Location
Many PDAs do not continuously send out probe requests after initial association to the Cisco Unified Wireless Network (CUWN). Given this, calculating the location accuracy of such PDAs using RSSI readings might not always be optimal.
Mandatory Setting Required on Intel 802.11n and 802.11 b/g/n Client Cards for Accurate Calibration
Few data points are collected with Intel 802.11n and 802.11 b/g/n client cards during calibration when the Cisco Compatible Client Extension (CX) RM option within the Enterprise Security Profile is not enabled.
You can use the Intel Client Software PROSET package to ensure that the Enterprise Security Profile is selected and that the Cisco Compatible CX RM option in this profile is enabled (CSCsl40623).
History Collection Not Supported for Wired Stations
History cannot be collected for wired stations. Wired Stations are incorrectly noted as a configurable option on the History Parameters page (Location > Location Servers > Server Name > Administration > History Parameters).
New Feature Support
This release does not include new features.
This section lists open and resolved caveats in location appliance release 184.108.40.206.
The following caveats are open (unresolved) in this release:
•CSCsk17031—The history page loads slowly when you query the location history of a tag or client.
Workaround: You can increase the interval between historical readings of client, tags, and rogue clients and access points. You can also prune the data more frequently (Location Server > Administration > History Parameters).
•CSCsk18826-Cisco WCS might experience slower refresh and rendering times when managing large controller networks (200 or more) because of increased page synchronization requirements. Additionally, the CPU use for the web browser increases substantially and the browser might be unresponsive for a short period of time.
•CSCsk74074-In some cases, when you select the Synchronize Servers option (Location > Location Servers > Server Name > Location > Synchronize Server) for a selected location appliance, it synchronizes all reachable location appliances in addition to the selected location appliance. Eventually, an error appears indicating that the location appliances cannot be synchronized because they are unreachable.
•CSCsk87607-When location accuracy test is tracking a large number of elements and it is left in the enabled state for a number of days, large log files might fill the logs directory. A subsequent download of a given log file might time-out given the size of the file.
Workaround: Log into the location appliance via SSH and move or remove log files of the following format: rf-MAC-address.log (rf-00-0c-cc-5c-07-18.log) from the /opt/locserver/logs directory.
•CSCsk88821—When you try to add datapoints to a calibration model and you select a campus and a building but do not select a floor, you see an unknown exception.
Workaround: None at this time.
•CSCsl38408-When using the Map Editor, you are unable to resize the map using the link found at the top of the page. Clicking the `To resize based on available browser space click here' link does not resize the map.
Workaround: None at this time.
•CSCsl40623-Few data points are collected with Intel 802.11n and 802.11 b/g/n client cards during calibration when the Cisco Compatible Client Extension (CX) RM option within the Enterprise Security Profile is not enabled.
Workaround: Use the Intel Client Software PROSET package to ensure that the Enterprise Security Profile is selected and that the Cisco Compatible CX RM option in this profile is enabled.
•CSCsl44156-When using Cisco WCS, upgraded from release 4.0 to 5.0, attempts to login to Monitor Lite are denied. A window displays stating that you do not have privileges for the requested operation.
Workaround: None at this time.
•CSCsl54522-The port number that displays in the pop-up when you mouse over a client icon a map might differ from the port number that displays in the client general properties panel that displays when you click on the client icon on the map. These port values should be the same in both displays.
Workaround: Use the port value that displays on the client general properties panel.
•CSCsl77797-The Location Accuracy Tool (Tools > Location Accuracy Tool) does not generate a spatial image when the map is not imported as a GIF file.
Workaround: Import maps as JPEG files.
•CSCsw17583-In some RF environments, where location accuracy is around 60 to 70% or where incorrect client or tag floor location placements occur, you might need to modify the moment RSSI thresholds in the aes-config.xml file in the opt/locserver/conf/ directory of the location server.
Workaround: Contact TAC with assistance in modifying the RSSI threshold parameters in the aes-config.xml file on the location server.
This caveat is resolved in this release:
•CSCsm93369—After you assign a location server to the network design and click Synchronize, WCS no longer returns to the synchronize servers page still showing the design as unassigned. WCS now synchronizes the network design correctly and the design shows as assigned.
The following caveats have been resolved since release 220.127.116.11:
•CSCsh47150—Moving a building from one location to another within a campus no longer causes synchronization errors. The synchronization page indicated that the building already existed and attempted to pull it. If you initiated a synchronization at this time, then it sometimes resulted in an inaccurate mapping of access points.Workaround was to unassign the campus or building elements from the location appliance, synchronize and then reassign the campus or building elements and then synchronize again.
•CSCsh79227—When connectivity between the location appliance and the controller was lost, alerts were not reported in Cisco WCS. Alerts were only reported when Cisco WCS lost connectivity to a controller.
•CSCsi12681—In cases where secure shell (SSH) versions earlier than 4.2, which did not support the GSSAPIDelegateCredentials option, were installed on the location appliance, third party security scanners would indicate security problems.
•CSCsi17755—When the time in the location appliance was updated manually to adjust for daylight savings time, Cisco WCS did not display the manually entered time.
•CSCsi21064—Chokepoint heatmap circles on the map did not automatically resize after using the zoom in and out feature. Chokepoint mapping was only accurate when displaying in the default map size.
•CSCsi34248—The test fire function did 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 was unknown (binary 1111), Cisco WCS displayed the battery remaining percentage (%) in the Battery Life field for Cisco CX version1 asset tags as "-1%" rather than the correct value of "unknown."
•CSCsi46367— For some asset tags, the location history function (Monitor > Tags > Location History) did not automatically display any tag entries beyond the first listed when the play button was clicked.
•CSCsi51747—Cisco WCS did not display a tamper count for tampering notifications received from the Cisco CX version1 tags.
•CSCsj54172—SNMP initialization failed and subsequent initialization of the location module failed when the /etc/hosts file did not have an entry for the location appliance's host name and IP address. The location appliance would continue to run but SNMP polling and location calculation did not occur and did not report in the log file.
•CSCsj71650—The serial console port on the location appliance could hang when connected to certain models of USB serial converters.
•CSCsk62082-In some cases, enabling one of the location smoothing options (less, average, more or max smoothing) on a location appliance sometimes resulted in inaccurate location calculations for elements (Location > Location Server > Location Server > Server Name > Advanced > Location Parameter). Workaround was to turn off smoothing.
•CSCsj99244-The location server backup function in release 4.2 of Cisco WCS (Location > Location Servers > Maintenance > Backup) did not work on Japanese Windows 2003 SP2. The workaround was to modify the AM/PM portion of the backup file name to English before performing the backup. For example, given the backup file name, ls-sanity_071015_0410AM.lsbackup (shown in English) you would change the "AM" portion of the file text.
•CSCsk71342-When sorting on the controller or profile name column headings on the Clients detail window (Monitor > Clients > Total Clients), an error message similar to the following appeared: "No clients found on the location server(s) for the chosen criteria. Make sure that you have location servers added to Cisco WCS otherwise search on WCS Controllers." No sorting errors existed for the other column headings on the Clients detail window.
•CSCsk71692-After clicking a map icon on the Monitor > Maps > Map Name window to open a full- screen view of that map, you are unable to exit that view. The workaround was to enter the Cisco WCS IP address into the browser URL field.
•CSCsk74908-After enabling limiting for clients and tags on the Tracking Parameters window (Location > Location Servers > Location Server > Administration> Tracking Parameters), the calculation for "not tracked" elements was not always reflected correctly. This item was not displayed or supported on the Tracking Parameters window of Cisco WCS in release 4.2 but was incorrectly noted as supported in the Cisco WCS online help.
•CSCsk79730-When multiple location appliances were added to Cisco WCS and one or more location appliances were not reachable, then the user could not launch Monitor Lite. This happened only when a location appliance in the network was unreachable. The workaround was to log into Cisco WCS as an admin user and remove the unreachable location appliance from the All Location Servers summary window (Location > Location Servers) and then login as a Monitor Lite user. Monitor Lite would then launch correctly.
•CSCsk83415-When a location object was returned through the SOAP API, the floorHierarchy element list was always empty rather than returning campus, building, floor, and group elements. This generally occurred whenever a location object was requested. The workaround was for users to view the hierarchy within the fullHierarchy and simpleHierarchy elements in the location object. The location object information is presented in a string format and is separated by a bar (|).
•CSCsl63883-Lower location accuracy was seen for non-Cisco CX compatible Aeroscout tags with firmware versions earlier than 0415.
•CSCsk83459-When starting a location accuracy test, clicking the Start button for two MAC addresses simultaneously might result in unexpected results.
Workaround: Start location accuracy tests for MAC addresses at different times (releases 3.135 and earlier) or use the Accuracy Tool (Tools > Accuracy Tool) found in release 4.0.
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:
.Then choose your product (Wireless >Unified Wireless LAN Management > Cisco Wireless Location Appliance) and then select the Troubleshoot and Alerts heading on the product page to find information on the problem you are experiencing and other service advisories.
The following documents are related to location appliances:
•Cisco 2700 Series Location Appliance Installation and Configuration Guide
•Cisco Location Appliance Configuration Guide, Release 4.0
•Cisco Wireless Control System Configuration Guide, Release 5.0
•Cisco Wireless LAN Controller Configuration Guide, Release 5.0
Note You can see the latest online versions of these documents by selecting the Wireless category and then the appropriate product from the Wireless LAN Controller and Wireless LAN Management > Unified Wireless LAN Management sub-category panels at the following link: http://www.cisco.com/web/psa/products/tsd_products_support_configure.html
Obtaining Documentation, Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, 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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