WLAN Planning Wizard
•Whether there are any Area Polygons defined.
¾If an Area Polygon is defined, Planner tries to place the calculated number of devices within the Area Polygon.
¾If there are no Area Polygons defined, Planner places the devices on the layout at the calculated locations.
After either of the above steps, if still more devices are left, then Planner displays a message that the remaining devices cannot be placed automatically and hence you can manually place the same at any desired location on the floor map. Planner shows a list of these devices in the Devices Library dialog box under Auto AP section. You can drag and drop these devices on the floor map. The device is of the same type as was selected during Device Selection in the WLAN planning wizard.
6.3Auto Channel Allocation
Due to limited available frequency spectrum for 802.11 WLANs, dense AP deployment often requires spatial reuse of frequencies. The strategy you chose determines the set of available channels. Channels are assigned to minimize interference. If you had placed some devices manually, or had selected cross floor devices using the Filter option; Planner considers interference from these devices during Auto Channel allocation to determine the best available channel for a device.
Select either of the options for channel allocation strategy. Planner enables you to automatically allocate channels once the APs are placed on the floor map.
Click 
from the Toolbar to invoke channel allocation strategy. The Channel Allocation Strategy dialog box appears.
Specify the channels you want to assign to the devices.
•Non overlapping channels: These are channels that do not interfere with each other. For example, in the US, 2.4 GHz band offers three non‐overlapping channels – 1, 6, and 11.
•All available channels: All channels are considered. For example, in the US 2.4 GHz band offers 11 channels. Using partially overlapping channels (for example, 1, 4, 7, 11) can improve overall WLAN capacity.
6.4Estimating the Capacity
At any given point, if you want to estimate the capacity, click 
on the Toolbar. Planner displays a dialog box mentioning the estimated capacity for the layout.
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3Com ® AirProtect Planner User Guide