[Soekris] net4521 and 802.11a performance
krishna at cs.ucsb.edu
Tue Dec 13 16:47:16 UTC 2005
>> please correct me if i am wrong, I would be really happy if
>> somebody can show me how to make things as fast as 108 mbit/sec
>> on a soekris.
> Coming from a real-life standpoint, you're never going to get
> 108mbit/sec from 802.11a. Just like 802.11b only has about 6Mb of
> usable bandwidth, 802.11a is only realistically ever going to get
> at most 35Mb. There is so much overhead in the protocol that you
> can't help it, not to mention that the advertised speed of the
> given standard (11, 54, etc) _is_ the top speed - you're not going
> to get "108" with "full duplex". These monkeys that advertise
> "108" speeds are actually usually using two channels and trying to
> approximate "duplex".
Yet, about 10 MBits/sec is far too low. I used pebble for my testing.
In fact, yesterday I was able to get 40 MBits/sec consistently with a
second laptop. The bit rate in all my tests is 54M fixed.
> Anyone is welcome to prove me wrong, but this is from 2.5 years'
> experience with commercial-grade equipment in the largest retail
> environment in the world.
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