HP Manager Software manual Planning the 3COM Mobility System

144CHAPTER 4: PLANNING THE 3COM MOBILITY SYSTEM

3WXM can perform two calculations for MAP placement. One is based on coverage only. The other is based on capacity, using the capacity parameters. 3WXM compares the results of the calculations and selects the calculation that results in more MAPs.

By default, 3WXM performs only the coverage calculation. If you enable the Use Capacity Calculation option, 3WXM performs both calculations.

5In the Per Station Throughput list, specify the throughput (combined transmit and receive) in kilobits per second (Kbps) for a station.

The throughput value cannot exceed the value you selected for the baseline association rate in step 8.

3Com recommends that per-station throughput values do not exceed 1 Mbps for 802.11b technology and 5 Mbps for 802.11a/g technology.

6In the Expected Station Count list, specify the number of clients you expect to be in the coverage area.

7In the Station Oversubscription Ratio list, select the ratio for the average transmit behavior of the stations.

The station oversubscription ratio is the ratio of active clients compared to total clients. For example, the ratio 5:1 indicates that, statistically, 20 percent of the clients are active at any given time.

8In the Baseline Association Rate list, select the average desired association rate for typical clients in this coverage area.

9Click Next. The Area Associations page appears.