Configure Channel Selection

Use this section to make changes to the device channel width, Dynamic Frequency Selection (DFS), and Dynamic Channel Switching (DCS). The available settings depend on the Supported Radio Mode you selected in the basic configuration section.

Note

Extreme Networks provides defaults for each item in this section. The following steps are optional.

Select a channel from the Channel drop-down list.
Select a Channel Width from the drop-down list.
To manually exclude channels, select a specific channel.
To manually set transmission power, use the slider to select a dBm setting.
Enable Dynamic Frequency Selection (DFS) channel selection on APs as required for the regulatory region or country.
DFS is the mechanism that devices use to change to a clear channel when RADAR, such as from military installations, airports, and weather stations, is detected on the current channel.
1. Select Enable Manual Channel Return when a radio is forced off a statically assigned DFS channel due to the presence of radar.
  ExtremeCloud IQ now allows the radio profile to be configured to return the affected radio to the original statically assigned DFS channel.
2. Select Enable ZeroWait DFS to enable a device to bypass the clear channel checks when switching to a clear channel.
  The device maintains a vetted list of clear channels, and when the device detects RADAR, it switches immediately to a clear channel from the list without delay.
To manually enable client transmission power control (802.11h), use the slider to select a dBm setting.
Toggle Limit Channel Selection on or off to limit channel selection to non-overlapping channels.
1. Select the operating Region for the device from the drop-down list.
2. For Channel Model, select 3 channels for USA and 4 channels for Europe.
3. For Limit Channel Selection, USA defaults are 1, 6, and 11, and European defaults are 1, 5, 9.
Toggle Dynamic Channel Switching on to dynamically select and switch channels based on the following criteria:
1. Select a To and From time interval.
2. Select the RF Interference and CRC Error thresholds.