Public bug reported:
Binary package hint: network-manager
network-manager seems to be very aggressive about accumulating new SSIDs
but not very good about pruning SSIDs that are no longer being broadcast
and are not visible in scan output.
One result is that, after using a laptop in a car moving through a city,
network-manager shows a ridiculous number of wireless networks (all of
the networks that it heard about for some period of time), making it
hard to use the network-manager gnome applet. There are many wireless
networks showing strong signal, but which have long gone out of range,
and it's impossible to distinguish them from those networks that have
weaker signal but have the advantage of being in range at the moment.
r...@sahara:/home/nickolai# iw dev wlan0 scan | grep ^BSS | wc -l
25
r...@sahara:/home/nickolai# /usr/bin/nm-tool | grep Infra, | wc -l
278
r...@sahara:/home/nickolai#
On the other hand, network-manager seems to pick up new networks very fast,
indicating that it is getting the list of currently visible networks quite
often, just not removing them fast enough.
Assuming there's some internal timeout, it would be great if it were
configurable. Maybe it is, but NetworkManager(8) is not terribly
informative.
ProblemType: Bug
Architecture: amd64
Date: Fri Jul 3 15:17:27 2009
DistroRelease: Ubuntu 9.10
IfupdownConfig:
auto lo
iface lo inet loopback
Package: network-manager 0.7.1-0ubuntu1
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
LC_PAPER=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-1.14-generic
SourcePackage: network-manager
Uname: Linux 2.6.31-1-generic x86_64
WpaSupplicantLog:
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
NetworkManager too lax about pruning out-of-range wireless networks
https://bugs.launchpad.net/bugs/395292
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