Dynamic Frequency Selection - Allied Telesis TQ6000 GEN2 Series Management Software User Manual

TQ6000 GEN2 Access Poinst User's Guide

Dynamic Frequency Selection

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Dynamic frequency selection (DFS) is an industry standard that defines
how wireless access points are to respond to the presence of radar
signals on 5GHz channels. The standard states that a wireless access
point that detects radar signals on its current 5GHz channel has to stop
transmitting and select another channel to avoid interfering with the
signals.
The wireless access points support DFS on 5GHz channels that countries
or regions have designated as DFS channels. If an access point detects a
radar signal on its current 5GHz channel and if the channel is designated
as a DFS channel, it immediately marks the channel as unusable for a
minimum of thirty minutes and randomly selects another channel with
which to communicate with its clients.
Here are the guidelines for DFS on the wireless access points:
DFS channels vary by country or region.

DFS cannot be disabled on the wireless access points.

DFS does not apply to channels on the 2.4GHz radio.

Note
To determine whether Radio2 is using a DFS channel, refer to
"Displaying Radio Status" on page 87.