Dynamic channel switch with hostapd

Jouni Malinen j
Sat Nov 3 08:34:31 PDT 2012

On Fri, Oct 05, 2012 at 05:48:11PM +0200, Julien Herzen wrote:
> I'm trying to find a way to dynamically switch the operating channel
> (and the channel type HT40+ <-> HT40-) of a BSS, without restarting
> hostapd. I don't want to restart hostapd because I want to minimize
> the impact on ongoing traffic.
> Is there any easy way to do that currently?

Not in hostap.git.

> That would require to send some beacons to announce the switch to the
> clients, in a way similar to what is mandated by 802.11h. Are such
> features part of hostapd yet?

There is ongoing work in this area and a set of patches that address DFS
related functionality. I would assume these to get more review once the
kernel side changes for radar detection and DFS are accepted.

Jouni Malinen                                            PGP id EFC895FA

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