ORBIT-USER: Atheros 802.11 metrics

tashina at eden.rutgers.edu tashina at eden.rutgers.edu
Mon Aug 21 19:20:05 EDT 2006


Hi Kishore,

I was wondering also what the values were for cwmin and cwmax.

Are the cw values set by card or by the type of 802.11 network used?

Thanks for your response,
Tashina



> Hi Tashina:
>
>> RTS threshold
> By default, I believe this is set to 2312B - in other words, RTS is not
> used for any data packet since MTU is 1500B. You can set this value to
> something smaller (say 256B) - RTS/CTS will be used only for packets with
> sizes greater than the threshold.
>
>> Size of Preamble to the packets, i.e. long or short,
> Atheros cards use the short preamble from the 802.11 standard. This may
> also be configurable via driver modifications.
>
> regards,
> Kishore
>
> ---------------------------------------------------------------------------
> Kishore Ramachandran
> Graduate Assistant, WINLAB/ECE, Rutgers University.
> WWW  : http://www.winlab.rutgers.edu/~kishore
> ---------------------------------------------------------------------------
>
> On Mon, 21 Aug 2006 tashina at eden.rutgers.edu wrote:
>
>> Hi,
>>
>> I was hoping someone could tell me what the following values are on
>> orbit,
>> for the Atheros nodes running 802.11a. I tried looking it up on the
>> Atheros website and couldn't determine it.
>>
>> RTS threshold
>>
>> Size of Preamble to the packets, i.e. long or short,
>>
>> thanks,
>> Tashina
>>
>




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