Opened 7 years ago

Closed 5 years ago

Last modified 2 years ago

#6405 closed defect (wontfix)

madwifi - 802.11h channel switch announcement is broken

Reported by: nenad@… Owned by: nbd
Priority: highest Milestone: Barrier Breaker 14.07
Component: packages Version: Trunk
Keywords: Cc:


Sending channel switch announcement from AP using iwpriv ath0 doth_chanswitch 36 20 is not working correctly.

doth is enabled in wireless configuration:

# iwpriv ath0 get_doth
ath0      get_doth:1

Eventually, channel is changed, but it seems that STAs do not receive announcement as channel change is not completed seamlessly but with traffic disruption.

Old madwifis, like 0.9.4, trunk from etc, work without disruption in traffic - STA just switches to the new channel. I think that problem lies within AP as it appeared when I switched old madwifi-0.9.4 AP to openwrt madwifi, keeping old madwifi on the STA.

Correctly sending CSA is important to me as it is used on many of my p-t-p links with lot of traffic; changing channel with STA scanning channels brings up other problems with madwifi, e.g. introduces some kinf of "processing overhead" which rises RTT from 1-2ms to 200-300ms.

Attachments (0)

Change History (3)

comment:1 Changed 7 years ago by thepeople

  • Owner changed from developers to nbd
  • Status changed from new to assigned

comment:2 Changed 5 years ago by nbd

  • Resolution set to wontfix
  • Status changed from assigned to closed

madwifi development has stopped, consider switching to ath5k

comment:3 Changed 2 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

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