Search Linux Wireless

Re: iwlist wlan0 scan disrupts communications

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 2009-10-28 at 16:23 +0100, Johannes Berg wrote:
> On Wed, 2009-10-28 at 11:02 -0400, Charles Gordon wrote:
> 
> > I think that when the scan completes, mac80211 should either notify
> > wpa_supplicant that it should reassociate, or maybe send a null-data
> > frame to the AP which might cause it to send another
> > deauthentication/dissassociation frame (if we lost the connect).
> 
> it does send nullfunc frames, you're probably running into an old bug
> that caused those to not be sent.

Correct, 2.6.28 did *not* have the nullfunc TX fix, so if the scan lasts
more than a few seconds, and the AP has traffic for the STA the TX will
time out, and the AP may drop the STA during the scan.  2.6.29 was the
first kernel that had the nullfunc TX fix.

But the supplicant should still reconnect...

Dan


--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux