WLAN Planning Wizard

™Guard Interval (ns): Specify the desired guard interval.

™Frame Aggregation: Select either AMSDU or AMPDU, or both checkboxes for the desired frame aggregation.

For more details on the advance parameters, refer to Appendix D: Glossary of Terms.

Channel Allocation Strategy: 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. Planner assigns channels to minimize interference. During on‐site planning, interference from the existing APs is considered. Select either of the options for channel allocation strategy.

¾Only 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.

¾All available channels: All channels are considered. For example, in the US 2.4 GHz band offers 11 channels. Using partially overlapping channels (say 1, 4, 7, 11) can improve overall WLAN capacity.

3The WLAN Planning Wizard: Planning Objective screen helps you specify the planning objective for the 802.11 WLAN, while also guiding you in planning.

Figure 72. WLAN Planning – Planning Objective

Planner allows you to choose the focus of WLAN planning. Based on the focus, Planner considers different factors for populating the number of APs required and their placement.

Select one of the following options:

Coverage Planning: Select to plan the WLAN to enable users at most locations on the floor to connect with a specified minimum data rate.

Capacity Planning: Select to plan the WLAN to ensure connectivity with focus on user and application requirements.

4Depending on the planning focus that you chose in the previous step, Planner displays the Coverage Planning or Capacity Planning screen of the wizard.

5Once you are done with the WLAN planning, the WLAN Planning Wizard: Summary screen appears depending on the type of focus.

6If you wish to change the settings, click <Back>. Click <Finish> to exit the wizard. Planner will auto‐place the APs on the floor map, and assign channels to them.

Coverage Planning

If you have selected Coverage Planning in the previous step of the wizard, the WLAN Planning Wizard: Coverage Planning screen appears. The maximum data rate supported by an AP depends on the quality of the signal received from that AP. Due to RF path loss, the signal quality degrades as you move away from an AP, in turn leading to connectivity at lower data rates. In a coverage‐focused plan, you define a minimum data rate for the floor. You plan a WLAN such that users at most locations

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3Com ® AirProtect Planner User Guide