Chapter 13 Dynamic Channel Selection
ZyWALL Series CLI Reference Guide
112
CHAPTER 13
Dynamic Channel Selection
This chapter shows you how to configure and use dynamic channel selection on the Zyxel Device.
13.1 DCS Overview
Dynamic Channel Selection (DCS) is a feature that allows an AP to automatically select the radio
channel upon which it broadcasts by passively listening to the area around it and determining what
channels are currently being broadcast on by other devices.
When numerous APs broadcast within a given area, they introduce the possibility of heightened radio
interference, especially if some or all of them are broadcasting on the same radio channel. This can
make accessing the network potentially rather difficult for the stations connected to them. If the
interference becomes too great, then the network administrator must open his AP configuration options
and manually change the channel to one that no other AP is using (or at least a channel that has a
lower level of interference) in order to give the connected stations a minimum degree of channel
interference.
13.2 DCS Commands
See Section 9.2 on page 79 for detailed information about how to configure DCS settings in a radio
profile.
The following table describes the commands available for dynamic channel selection. You must use the
configure terminal command to enter the configuration mode before you can use these
commands.
Table 43 Command Summary: DCS
COMMAND DESCRIPTION
dcs now {ap_mac | profile_name}
Sets the managed AP to scan for and select an available channel
immediately.
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