[rescue] FS: Intel 460T 24-port managed switch

Curtis H. Wilbar Jr. rescue at hawkmountain.net
Sun Jun 10 13:27:17 CDT 2007


Phil Stracchino wrote:
> John Francini wrote:
>   
>> Some questions:
>>
>> o Are you using SpeedBoost/Afterburner on the AP without having it 
>> enabled on the laptop?
>>     
>
> Nope.
>
>   
>> o Is the AP in b/g compatible mode un-necessarily (that is, do you 
>> have older clients that only speak 11b protocol)? Though the 
>> documentation suggests otherwise, I believe that can cause a problem.
>>     
>
> Nope.
>
>   
>> o You don't indicate what wireless card you're using. Since the 600E 
>> is an older laptop (at least 8 years according to the ThinkPad Wiki), 
>> it doesn't have internal wireless (or Ethernet for that matter). 
>> What kind of card are you using?
>>     
>
> As mentioned yesterday, it's a Linksys WPC54G connecting to a Linksys
> WRT54G running DD-WRT.
>
>   
>> o The 600E is also fairly glacial, CPU-wise.  I wonder if there's 
>> some sort of bottleneck that prevents you from seeing full speed 
>> because the CPU doesn't have enough cycles to get data to/from the 
>> card quickly enough?
>>     
>
> I'm wondering myself whether that's the basic nature of the problem.
> This laptop has always been awful on wireless, under any OS, to any AP.
>  I'm wondering if it's just plain CPU-bound.  (Or maybe IBM did
> something stupid in the design of the PCMCIA slots, like they did with
> Thinkpad 600 batteries.)
>   

Also, is it PCMCIA or CardBus ?

That may or may not play into it too ?

-- Curt



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