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Ticket #2102 (new defect)

Opened 13 years ago

Last modified 13 years ago

SR5 not working properly with madwifi 0.9.4 r3837

Reported by: riyas@deccantechnosoft.com Assigned to:
Priority: major Milestone:
Component: madwifi: other Version: trunk
Keywords: delay in transmitting beacons Cc:
Patch is attached: 0 Pending: 0

Description (Last modified by mrenzmann)

Hi,

Here is our configuration

  • Madwifi: trunk r3837
  • Kernel: 2.6.21.4
  • Machine: Gateworks Avila Network Platform
  • Processor: Intel(Xscale)IXP420 266Mhz
  • Radios: ubiquiti SR5 AR5213A-001 and ubiquiti SR2 AR5213A-001

When we bring up an AP and a Station using SR5 radios (Ubiquiti), the station cannot see the hardware beacons of the AP instantly (We have tested with the athdebug commands.)... Its only visible after a delay... Again some of the packets are lost when we try to pass the traffic after its associated. (seems that the interface doesn't support traffic for some unknown time...)

I have been working with r2456 and was working fine.

The commands that given:

modprobe ath_pci
modprobe wlan_scan_ap
wlanconfig ath0 destroy
wlanconfig ath0 create wlandev wifi0 wlanmode ap
ifconfig ath0 xx:xx:xx:xx up
iwconfig ath0 essid "asdf"
iwconfig ath0 

at Ap side:

Warning: Driver for device ath0 has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

ath0      IEEE 802.11a  ESSID:"asdf"  Nickname:""
          Mode:Master  Frequency:5.26 GHz  Access Point: Not-Associated   
          Bit Rate:0 kb/s   Tx-Power:16 dBm   Sensitivity=1/1  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/70  Signal level=-96 dBm  Noise level=-96 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

At station side...

modprobe ath_pci
modprobe wlan_scan_sta
wlanconfig ath0 destroy
wlanconfig ath0 create wlandev wifi0 wlanmode sta
ifconfig ath0 up
iwconfig ath0 essid "asdf"

iwconfig 


[root@avila /]# iwconfig 
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      no wireless extensions.

wifi0     no wireless extensions.

Warning: Driver for device ath0 has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

ath0      IEEE 802.11a  ESSID:"asdf"  Nickname:""
          Mode:Managed  Frequency:5.26 GHz  Access Point: Not-Associated   
          Bit Rate:0 kb/s   Tx-Power:16 dBm   Sensitivity=1/1  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/70  Signal level=-96 dBm  Noise level=-96 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

At the statio side when we scan ...

iwlist ath0 scan


Warning: Driver for device ath0 has been compiled with version 22
of Wireless Extension, while this program supports up to version 20.
Some things may be broken...

ath0      No scan results

I have also tried with the iwpriv commands to set the inactivity of the interfaces but doesn't seems to be working...

After a time delay its getting associated. But misses the traffic some times

When I tried with the SR2 radios we are getting better results than SR5 radios. but it misses the packets after associating.

Thanking you, Best regards, Riyaskhan S A, Meshcity

Change History

08/25/08 17:17:26 changed by mrenzmann

  • version changed from v0.9.4 to trunk.
  • description changed.