Concept Guide
18 | Setting Up and Tuning VisualRF Dell PowerConnect W AirWave 7.2 | VisualRF User Guide
Vector - provides much smoother overlay with mouse-over capabilities
Grid Lines - Toggle grid lines on or off
Distance between grid lines
Color of grid lines
Navigation - select from the Configure Preferences drop-down menu (campus and buildings):
% of APs Up for the last 24 hours for normal (green) and excessive (red)
Icon Size for campus, building and floor
Increasing Location Accuracy
The Location Service will use all RF information available to increase location accuracy of clients, tags, and rogue
devices. Understanding your infrastructure's inherit capabilities helps you learn the extra effort required to ensure
location accuracy.
There are three key elements read from controllers or access points that increase location accuracy: signal strength
of a client as heard by the AP of association, signal strength of a client as heard by APs other than the AP of
association, and signal strength at which an AP hears other APs.
These factors are detailed further in Table 9:
NOTE: These preferences are stored in the database, so they should be retained across browsers and machines.
NOTE: The remaining sections in this chapter apply to networks, campuses, buildings, and floor plans that have already been set
up in VisualRF. If you do not yet have any of this information in VisualRF for your network, refer to Chapter 3, “Planning and
Provisioning” on page33.
Table 9 Elements Read From Controllers to Increase Location Accuracy
MFG/Model Client Signal Associated AP
AP-to-AP Signals
(Dynamic Attenuation)
Unassociated
Client Signal
Rogue
APSignal
Aruba Yes Yes Yes Yes
Cisco LWAPP Yes Yes Yes Yes
Cisco IOS Yes No No With WLSE
Cisco VxWorks Yes No No No
Trapeze Yes No No Yes
Meru No No No Yes
Proxim Yes Yes Yes Yes
Symbol Thick AP Yes No No Yes
Symbol Thin AP Yes No Yes Yes
Proxim AP-2000 Yes No Yes Yes
Proxim AP-4000 Yes Yes Yes Yes
ProCurve WeSM Yes Yes No Yes