You might find out an IP address to the Access point he connects to.
Then you can ping the Access point, also ping someplace a few hops
beyond his ISP. If you can ping the AP and loose packets at the ISP
level, the ISP is over provisioned. If you loose packets at to the AP it
could be a signal issue. If he in using 2.4 spectrum, the problem is
almost for sure Digis noise pollution. Digis has ruined the 2.4 spectrum
here in the Utah with all their illegal signal levels.
Josh Coates wrote:
smokeping is easy and all it does is graph packet loss. i use it.
(http://people.ee.ethz.ch/~oetiker/webtools/smokeping/_
plus it's kind of neat looking.
-josh
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Hans Fugal
Sent: Thursday, December 29, 2005 5:11 PM
To: plug@plug.org
Subject: Graphing packet loss
My dad is having serious come-and-go packet loss issues with
his ISP (a Vernal local wireless setup). I'd like to give him
some leverage with some nice cacti graphs of packet loss, but
I'm having a hard time pinning down precisely what to graph.
The following is an excerpt of /proc/net/snmp:
Tcp: RtoAlgorithm RtoMin RtoMax MaxConn ActiveOpens
PassiveOpens AttemptFails EstabResets CurrEstab InSegs
OutSegs RetransSegs InErrs OutRsts
Would any of those directly measure packet loss? If not,
might some of the stats in /proc/net/tcp (or anywhere else)
have the information (which I could then get into SNMP easy enough).
It'd be really nice if I could tell on the router what kind
of packet loss is happening, but I'm not sure you can do
that, and since the subnet is a whole two computers that's
not a big issue.
--
Hans Fugal ; http://hans.fugal.net
There's nothing remarkable about it. All one has to do is hit
the right keys at the right time and the instrument plays itself.
-- Johann Sebastian Bach
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