WLC DCA 2,4 GHz

[battanc]

What is the best strategy for DCA configuratiuon a WLC in an environment with heavy interference on the 2.4 GHz band (Protocols 802.11/b/g)?
Select only 3 non-overlapping channels, or select all, so to let the WLC select a channel to minimize interference?

[d.friday]

Hello,

I would suggest letting the WLC does it job and use the default settings,  channels 1,6,11

Enable CleanAir if  your APs are supported.

A few items you can play around with and test to see if it helps your network.  I suggest enabling one at at time and monitor to see if they help.

• enable Avoid Foreign AP interference

• Avoid non-802.11b nose

• Avoid Persistent Non-Wifi Interference

• Event Driven RRM  enable EDRRM

Here is a link to Cisco best practices if you are interested.

http://www.cisco.com/c/en/us/td/docs/wireless/technology/wlc/82463-wlc-config-best-practice.html

I hope this helps

[battanc]

Hi,

I don't remember the default (channel 1,6, 11 ?).

So you suggest not to enable all channels, so that the WLC choose channel also according to "external" interference?

[d.friday]

Hi,

Yes you are correct the default channels are 1,6,11. and yes I don't recommend enabling the other channels. since the overlap with other channels.


Non-overlapping channels (1,6,11) work better than overlapping channels. With overlapping channels, you step on each other and can't do anything about it. With non-overlapping channels, you see each other and share the bandwidth