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Difference between basic and supported rates?

Posted: Fri Sep 21, 2007 4:16 pm
by gabriellauter
Could someone please tellme what is the difference between basic and supported rates on the data rates configuration?

Thanks,

Gabriel Lauter

Re: Difference between basic and supported rates?

Posted: Fri Sep 21, 2007 4:26 pm
by skillful
The "basic rates" is the lower limit while the "supported rates" is the upper limit. Your wifi interface will not connect at a rate lower than that set on the "basic rates". Neither will it connect above the supported rates.

Re: Difference between basic and supported rates?

Posted: Fri Sep 21, 2007 7:54 pm
by gabriellauter
but what would happen if a set basic rates to 11Mbps and supported rates do 1Mbps???

Re: Difference between basic and supported rates?

Posted: Fri Sep 21, 2007 8:02 pm
by skillful
The best way to find out is to try that yourself. :)

On a serious note, supported rates should be higher or equal to basic rates.

Re: Difference between basic and supported rates?

Posted: Sat Sep 22, 2007 1:17 am
by JR
These are really to do with the (rf) modulations, the rates in MT is really = to the various modes,
e.g. mode 1-8 in OFDM (a/g), which translates to an average data rate in mbps (air side factors will apply).

Re: Difference between basic and supported rates?

Posted: Sat Oct 06, 2007 3:04 pm
by sten
basic-rate is used for broadcast and multicast packets (which are not ACKed and therefore must be sent at an reliable rate).
basic-rate is also used for association and beacons.
supported-rates are simply used for unicast packets (which are ACKed)

for each basic-rate there must be a supported-rate but not (necessarily) the other way around.
at "default" settings the basic-rate will be at the lowest rate for that mode (B and B/G = 1mbit, A or G-only = 6mbit) but supported-rates will vary on the success of transmission on each rate.

.. more or less ..

Re: Difference between basic and supported rates?

Posted: Sat Oct 06, 2007 5:20 pm
by gabriellauter
very good explanation,

thanks man!

Re: Difference between basic and supported rates?

Posted: Wed Jan 28, 2009 4:53 pm
by mersudin
Basic rates are the one that device must be able to use on current tx/rx signal else it won't be able associate, supported rates on the other hand are speed rates that can be used to communicate as i was told , keep basic rates on b mode 1mb and a/g to 6mb and supportes as you think is needed.