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Re: carl9170: wnda3100 only 54MB/s

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------------------------------------------------------------
Client connecting to 192.168.10.52, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.10.60 port 50647 connected with 192.168.10.52 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  98.6 MBytes  82.6 Mbits/sec


Seems to be doing a lot better now thanks :)

I was not aware the WMM extensions were needed to get HT working, I
ended up upgrading my distro to 10.10 RC, and compiling the
compat-wireless u posted, and enable WMM extensions on my router.
Working considerably better :)




On Fri, Oct 1, 2010 at 8:26 PM, Christian Lamparter
<chunkeey@xxxxxxxxxxxxxx> wrote:
> On Saturday 02 October 2010 01:56:06 Saqeb Akhter wrote:
>> Yes carl9170 (from 9/23).
> wow, that's old. Luis posted a "special" compat-wireless release
> for carl9170:
>
> "See Announcement: Re: Compat-wireless release for 2010-10-01 v2 with RX filter for carl9170 on -p release"
> http://www.orbit-lab.org/kernel/compat-wireless-2.6/2010/10/compat-wireless-2010-10-01-p.tar.bz2
>
> ---
>> output iw dev wlan2 scan
>>
>> BSS 30:46:9a:10:49:f7 (on wlan2) -- associated
>>       TSF: 90703162427 usec (1d, 01:11:43)
>>       freq: 5200
>>       beacon interval: 100
>>       capability: ESS ShortSlotTime (0x0401)
>>       signal: -53.00 dBm
>>       last seen: 672 ms ago
>>       SSID: sakhter-5g
>>       Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
>>       DS Parameter set: channel 40
>>       HT capabilities:
>>               Capabilities: 0x1ce
>>                       HT20/HT40
>>                       SM Power Save disabled
>>                       RX HT40 SGI
>>                       TX STBC
>>                       RX STBC 1-stream
>>                       Max AMSDU length: 7935 bytes
>>                       No DSSS/CCK HT40
>>               Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
>>               Minimum RX AMPDU time spacing: 1/2 usec (0x02)
>>               HT RX MCS rate indexes supported: 0-15
>
>>               HT TX MCS rate indexes are undefined
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Now that's interesting, apparently Netgear's AP can't send HT (802.11n) frames!
>
> But that's not your problem, it's the missing WMM extension.
>
> Your AP should (additionally) display:
>        WMM:     * Parameter version 1
>                 * BE: CW 15-1023, AIFSN 3
>                 * BK: CW 15-1023, AIFSN 7
>                 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
>                 * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
>
>
> But since it doesn't, mac80211 does not enable ht.
>
> Maybe a new firmware for the router would fix the issue?
>
> Regards,
>        Chr
>
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