question about channel switching delay

[YAN HE]

Sorry for not stating clearly. The card is first in Managed mode and its essid is "Net1". I want to change its essid to "Net2" and change its mode to Ad-Hoc. The latency of each action is about 12 ms. But the sum of two latencies is 33 ms.

Thanks,
YAN

----- Original Message ----- 
From: "hong zhang" <henryzhang62 at yahoo.com>
To: "YAN HE" <yanhe at louisiana.edu>; <hostap at shmoo.com>
Sent: Friday, August 03, 2007 12:31 PM
Subject: Re: question about channel switching delay


> Yan,
> 
> In managed mode (sta), if you assign a SSID name to
> driver, driver will try to associate an AP with the
> SSID name. If you only want to change SSID name and
> mode(a/b/g), you should do it in manager mode then sta
> will
> match what AP has when sta associates to the AP.
> 
> ---henry
>  
> --- YAN HE <yanhe at louisiana.edu> wrote:
> 
>> Hello,everybody,
>> 
>> I am using hostap driver 0.4.9 for a Netgear MA401
>> card on Linux 2.6.11. The card was in Managed mode
>> and connected to an access point first. When I
>> changed either essid or mode by invoking ioctl() in
>> my program, the delay is 12 ms. However, if I
>> changed both essid and mode, the delay is 33 ms,
>> which is more than the sum of two separate delays.
>> Does anyone meet this before?
>> 
>> Thanks.
>> YAN
>> 
>> 
>>  > _______________________________________________
>> HostAP mailing list
>> HostAP at shmoo.com
>> http://lists.shmoo.com/mailman/listinfo/hostap
>> 
> 
> 
> 
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