User manual

Chapter 3 - Layer 2 Command Set - PHY and MAC Dfs (Dynamic Frequency Selection)
Alvarion BreezeNET B130/B300 GigE 99 Operational User Manual
3.8 Dfs (Dynamic Frequency Selection)
This command is used to configure DFS (Dynamic Frequency Selection) function
of a radio interface.
Syntax:
dfs "interface_name" (dfsradar | dfsonly | dfsoff)
dfs "interface_name" freq { all |"frequency_list"}
dfs "interface_name" cot hh:mm
dfs "interface_name" scansec <seconds>
Description:
- dfs "interface_name" dfsonly - starts DFS on the device. In DFS mode device is
selecting the most interference-free frequency channel by scanning of all the
available frequencies. When scanning is done it sets the device to operate on the
frequency that has less presence of external interference sources.
While scanning and choosing the best channel the DFS function also takes into
consideration the "density" characteristic of the radio environment. This
characteristic indicates how much impulse interference was detected on the
channel during the scan time.
- dfs "interface_name" dfsradar - starts DFS with radar detection. After choosing
the most "clear" frequency channel the device is listening to radars that may work
on the specified frequency. In case of detecting the radar it starts frequency
selection process again.
- dfs "interface_name" dfsoff - stops DFS on the device.
- dfs "interface_name" freq { all |"frequency_list"} - sets list of frequencies
("frequency_list" parameter) that are allowed for choosing by DFS or allows DFS to
use all radio interface enabled frequencies ("all" parameter).
- dfs "interface_name" cot {hh:mm | off} - allows doing DFS rescanning and
choosing the most optimal frequency for using on the daily basis in the defined
time that is set by "hh:mm" parameter. The "Off" parameter disables this
functionality.
CAUTION
On both units, master and slave, please use only the frequencies approved by your country
regulations. It is own client responsibility if other frequencies apart from the one accepted by the
regulations are used during operational mode, dfs scanning and any other purposes.