Configuring RRM for RF Profiles

1. On the Configure > RF Profiles page, select the check box for the RF profile for which you want to add RRM settings. Click the RRM tab.
2. In the TPC section, configure the maximum and minimum power that the APs in this RF profile are allowed to use, in the Maximum and Minimum Power Level Assignment fields.
3. In the Power Threshold v1 field, enter the cutoff signal level used by RRM when determining whether to reduce an access point's power. The default value for this parameter is -70 dBm for TPCv1.
4. In the Coverage Hole Detection section, enter the minimum receive signal strength indication (RSSI) value for data and voice packets received by the access point, in the Data RSSI and the Voice RSSI fields. The value that you enter is used to identify coverage holes (or areas of poor coverage) within your network. If the access point receives a packet in the data queue with an RSSI value below the value that you enter here, a potential coverage hole has been detected. The valid range is -60 to -90 dBm, and the default value is -80 dBm. The access point checks RSSI measurements every 5 seconds and reports them to your device in 90-second intervals.
5. In the Minimum Client Level field, enter the minimum number of clients on an access point with an RSSI value at or below the data or voice RSSI threshold. The valid range is 1 to 75, and the default value is 3.
6. In the Exception Level % field, enter the percentage of those clients that experience a low signal level, but cannot roam to another access point. The valid range is 0 to 100%, and the default value is 25%.
7. In the DCA section, select the Avoid Foreign AP Interference check box to consider 802.11 traffic from foreign access points (those not included in your wireless network) when assigning channels to lightweight access points. For example, if you select this check box, RRM may adjust the channel assignment to have access points avoid channels close to foreign access points.
8. In the DCA section, choose one of the following channel width options to specify the channel bandwidth supported:

• 20 MHz—The 20-MHz channel bandwidth (default)
• 40 MHz—The 40-MHz channel bandwidth
• 80 MHz—The 80-MHz channel bandwidth
• Best—The channel bandwidth is selected dynamically, to ensure optimal performance of the wireless network.

9. In the DCA section, the DCA Channels field shows the channels that are currently selected. To choose a channel, select the check box for the channel. The channel numbers listed are only applicable to the RF profile.

The ranges are as follows:

• 802.11a—36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 149, 153, 157, 161, 165, 190, 196
• 802.11b/g—1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

The defaults are as follows:

• 802.11a—36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 149, 153, 157, 161
• 802.11b/g—1, 6, 11

10. In the Profile threshold for Traps section, in the Interference field, enter the percentage of interference (802.11 traffic from sources outside of your wireless network) on the access point. The valid range is 0 to 100%, and the default value is 10%.
11. In the Clients field, enter the number of clients on the access point. The valid range is 1 to 75, and the default value is 12.
12. In the Noise field, enter the level of noise (non-802.11 traffic) on the access point. The valid range is -127 to 0 dBm, and the default value is -70 dBm.
13. Click Apply to save your changes. To clone the RF profile, click Apply As. Only the profile name, radio policy, and description are used to create the new profile.

 

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