Installation guide

Wi-Fi Location-Based Services—Design and Deployment Considerations

OL-11612-01

Deployment Best Practices

with a WCS governing it. The management chapter of the Cisco Unified Wireless Network Solutions

Reference Design Guide contains additional considerations you should keep in mind for single and

multiple management domain designs.

Note Keep in mind that as of release 4.0.155.0, WLAN controllers each support a maximum of 500 L2 active

802.11 RFID tags. Each controller is capable of detecting the RSSI of each tracked device from a

maximum of eight access points at any time.

Although the maximum size of the management domain is limited by the capacity of WCS, the maximum

size of the location domain (that is, the number of devices tracked by a single location appliance) is

limited by the tracked device capacity of the location appliance. In most cases, the standard deployment

model of a single WCS management domain combined with a single location domain (Figure 43) meets

the raw tracking needs of the majority of users.

Figure 43 Single Management and Location Domains

However, in the case of large campuses, the total number of tracked devices may exceed the 2500 device

capability of a single location appliance, making it necessary to use more than one location appliance.

In other cases, it may make sense to divide the tracked device requirement among two or more location

appliances to better accommodate internal financial cost accounting within an organization and to

provide for predictable growth. A good example of this might be a campus medical center WLAN that

is tracking a large amount of patient-related medical assets in addition to the internal IT assets of the

organization and wants separate appliances for isolation as well as clear cost partitioning.

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Campus

WCS

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WiSM

LWAPP