Cisco Cisco 5520 Wireless Controller デザインガイド

In the above deployment example, four wIPS Access Points are deployed around the edges of the 
building to provide security monitoring around the periphery of the physical building. In addition, a 
wIPS Access Point is deployed in the center of the building to provide security-monitoring coverage 
inside the building.

As stated above, the square footage of access point coverage can be measured based on frequency and 
environment, but with the newer wIPS modes, other factors also contribute to wIPS access point density 
recommendations. All access point modes can monitor the same distance, but due to the reasons below, 
it is recommended to deploy each mode with a different density.

Access Points in local mode with wIPS are geared towards serving clients. For local mode with wIPS 
deployments, it is recommended for every access point be put in local mode with wIPS.

For monitor mode access points, we recommend that a ratio of 1:5 local mode to monitor mode access 
points.

Finally for the WSM module, there is a single radio monitoring all channels on both the 2.4 GHz and 5 
GHz band. Since radio has additional channels to scan, it is recommended that the WSM module be 
deployed with a 2:5 density to speed up detection time.