[PLUG] setting bit rate
Bruce KIlpatrick
bakilpatrick at verizon.net
Tue Mar 4 04:30:47 UTC 2008
Russell Senior wrote:
>>>>>> "Bruce" == Bruce KIlpatrick <bakilpatrick at verizon.net> writes:
>>>>>>
>
>
>>>>> It's an HP AMD64 laptop with broadcom wireless drivers. After
>>>>> using it for a while, I realized it was running at 24Mb/s when it
>>>>> is capable of 54Mb/s. I manually changed the bit rate using
>>>>> iwconfig.
>>>>>
>>>>> iwconfig eth1 now shows 54Mb/s. Gnome's network manager shows it
>>>>> still running at 24Mb/s.
>>>>>
>>>>> Which one is correct? What do I need to do to change it and then
>>>>> edit to make it permanent?
>>>>>
>>>>> I tried Google and had very little success. Perhaps some of you
>>>>> can word the search better, or perhaps already know without
>>>>> searching.
>>>>>
>
> Note that the bit-rate is usually adaptive. That is, an algorithm
> tries to pick the rate that maximized throughput when packet loss is
> taken into consideration. If there is noise, or if you aren't right
> near the access point, it ought not be surprising to have a rate less
> than 54M.
>
>
>
Russell,
Here is the output of iwconfig:
robin at moose:~$ iwconfig eth1
eth1 IEEE 802.11b/g ESSID:"KP4983" Nickname:"Broadcom 4311"
Mode:Managed Frequency=2.437 GHz Access Point:
00:15:E9:69:36:FF Bit Rate=24 Mb/s Tx-Power=18 dBm
RTS thr:off Fragment thr:off
Link Quality=88/100 Signal level=-46 dBm Noise level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:6 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Noise level seems to be a bit higher than the signal level...do I read
that right?
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