#685: Average RSSI calculation for ahdemo mode is broken
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Reporter: [EMAIL PROTECTED] | Owner: mrenzmann
Type: defect | Status: reopened
Priority: major | Milestone: version 0.9.x -
progressive release candidate phase
Component: madwifi: 802.11 stack | Version: v0.9.0
Resolution: | Keywords:
Patch_attached: 1 |
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Comment (by [EMAIL PROTECTED]):
I have a suspicision of what may be your problem.
It seems the neighbour table can contain entries for all packets that the
card has heard on that particular channel, regardless of whether the
ESSID/BSSID is correct or not. In rare cases it is even possible to
correctly receive a packet from an adjacent channel if the transmitter is
close enough (eg, in the same machine), which will also result in an entry
in the neighbour table.
Currently the code to which my original patch was applied does not filter
the neighbour table on ESSID/BSSID. I think it may need to. I haven't had
time to look into this properly yet.
Can you please paste the output of
{{{
wlanconfig <iface> list
}}}
to this ticket. If there are more than 2 entries in the table then you may
be hitting this problem. If you could also list the MAC addresses that you
know of it would help in sorting out what is what in the neighbour table.
I'm not sure that the rate algorithm pays too much attention to RSSI. As
far as I'm aware it uses it only to establish the initial rate, after that
its tunings are based purely on the success of packet transmission as far
as I know. The rate algorithm also works on a per-node basis if my
understanding is correct, so would not be affected by extra entries in the
neighbour table.
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Ticket URL: <http://madwifi.org/ticket/685>
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