Installation guide

35
Wi-Fi Location-Based Services—Design and Deployment Considerations
OL-11612-01
Cisco Location-Based Services Architecture
Figure 19 WCS RFID Location History
In many cases, it is desirable to graphically display the location history of an asset tag in sequential order
so as to better visualize and trace the movement of the RFID tag (and the attached asset) throughout the
environment over time. This can be very useful, for example, in security and monitoring applications.
Cisco WCS and the location appliance make it possible to do this by playing back each location history
record with a configurable time delay. The granularity of the “movement” shown depends on the interval
with which client history records are recorded in the database.
To see location history played back in this fashion, simply click the Play button shown in Figure 19 and
past location history should start being displayed both in tabular form and graphically. Large amounts
of location history data may be more readily viewed by reducing the “Change Selection Every” interval
shown in Figure 19 from 2 seconds to 1 second.
Rogue Access Points
Rogue access points are access points that are detected by the wireless LAN infrastructure and
determined not to be members of the same mobility group or WLAN system. In addition, any devices
that are participating as members of ad-hoc networks are also detected as rogue access points (but with
a rogue type of AD_HOC, as shown in the rogue AP detail screen in Figure 21).