Installation guide

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Wi-Fi Location-Based Services—Design and Deployment Considerations
OL-11612-01
Deployment Best Practices
Figure 42 Facilitating Mobile Device Floor Assignment
Using Multiple Location Appliances in Larger Designs
As stated earlier, under release 2.1 a single Cisco Wireless Location Appliance can track up to 2500
devices, which includes WLAN clients, asset tags, rogue access points, and rogue clients. The location
appliance allows for specific tracked device categories to be enabled via Location > Location Server >
Administration > Polling Parameters. To make best use of the capacity of each location appliance, Cisco
recommends enabling only those polling categories (client stations, rogues, asset tags, or statistics) in
which there is genuine interest and that require simultaneous tracking/historical location. For example,
if the primary interest is in tracking asset tags only, do not enable the client and rogue polling categories
because this only adds to overall network traffic between the location appliance and WLAN controllers
as well as unnecessarily consuming a portion of the 2500 device tracking capacity. By disabling polling
for device categories for which there is little interest, the full capacity of the location appliance can be
better used.
The Cisco WCS release 4.0 can support between 500 and 5000 access points and between 50 and 250
WLAN controllers, depending on hardware configuration, as follows:
• WCS “high-end” server—Supports up to 3000 access points and 250 WLAN controllers
• WCS “standard” server—Supports up to 2000 access points and 150 WLAN controllers
• WCS on Cisco Wireless LAN Solutions Engine (WLSE) hardware—Supports up to 1500 access
points and 100 WLAN controllers
• WCS “low-end” server—Supports up to 500 access points and 50 WLAN controllers
Note For complete details, see Cisco Wireless Control System Configuration Guide, System Requirements at
the following URL:
http://www.cisco.com/en/US/products/ps6305/products_configuration_guide_chapter09186a00806b71
e8.html#wp1061082
From this information, you can see that the maximum size of the WCS management domain (that is, the
total number of devices managed by a single WCS) is limited by the choice of server platform. In very
large networks, it may be necessary to partition the network into multiple management domains, each