Graphing packet loss

Josh Coates jcoates at
Thu Dec 29 19:10:34 MST 2005

smokeping is easy and all it does is graph packet loss.  i use it. 
plus it's kind of neat looking.


> -----Original Message-----
> From: plug-bounces at [mailto:plug-bounces at] On 
> Behalf Of Hans Fugal
> Sent: Thursday, December 29, 2005 5:11 PM
> To: plug at
> 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 ;
> 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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