[smokeping-users] Get packet loss data in last ten days graph

[Alessandro Palermo]

I still got a doubt about the calculataion of packet loss.
For example I've got 2 losses in the last 3 hours in two consecutives
polling cycles (1/20 and 1/20).
The data in the graphs shows pl= 0.14% avg and 4.68% max
In the rrd data I've got:

rrdtool fetch myrrdfile.rrd AVERAGE -s -3h -e now  | cut -f 1-3 -d' '


1366717200: -nan 0,0000000000e+00
1366717500: -nan 0,0000000000e+00
1366717800: -nan 0,0000000000e+00
1366718100: -nan 0,0000000000e+00
1366718400: -nan 0,0000000000e+00
1366718700: -nan 0,0000000000e+00
1366719000: -nan 0,0000000000e+00
1366719300: -nan 0,0000000000e+00
1366719600: -nan 0,0000000000e+00
1366719900: -nan 0,0000000000e+00
1366720200: -nan 0,0000000000e+00
1366720500: -nan 9,3666666667e-01
1366720800: -nan 6,3333333333e-02
1366721100: -nan 0,0000000000e+00
1366721400: -nan 0,0000000000e+00
1366721700: -nan 0,0000000000e+00
1366722000: -nan 0,0000000000e+00
1366722300: -nan 0,0000000000e+00
1366722600: -nan 0,0000000000e+00
1366722900: -nan 0,0000000000e+00
1366723200: -nan 0,0000000000e+00
1366723500: -nan 0,0000000000e+00
1366723800: -nan 0,0000000000e+00
1366724100: -nan 0,0000000000e+00
1366724400: -nan 0,0000000000e+00
1366724700: -nan 0,0000000000e+00
1366725000: -nan 0,0000000000e+00
1366725300: -nan 0,0000000000e+00
1366725600: -nan 0,0000000000e+00
1366725900: -nan 0,0000000000e+00
1366726200: -nan 0,0000000000e+00
1366726500: -nan 0,0000000000e+00
1366726800: -nan 0,0000000000e+00
1366727100: -nan 0,0000000000e+00
1366727400: -nan 0,0000000000e+00
1366727700: -nan 0,0000000000e+00
1366728000: -nan -nan

And I can't understand how to obtain the value of pl=0.14% avg. I thought
that the data stored in the rrd was the number of packet loss in a round or
the average each 5 minutes.
In the first case I get a value of pl=(number of packet losses in last
3hours/total packets sends)2/720=0.0028, then pl=0.28%.
Surely I'm wrong in something.

Thanks


On 22 April 2013 21:32, Alessandro Palermo <ok.aless at gmail.com> wrote:

> Thanks very much Russell. I will try this.
>
> Regards
> El 22/04/2013 15:36, "Russell Dwarshuis" <rjd at merit.edu> escribió:
>
> Here is an example (I piped it through cut so you don't have to see all 20
>> ping times):
>> rrdtool fetch your.rrd AVERAGE -s -20minutes -e now  | cut -f 1-3 -d' '
>>
>>
>> 1366654200: nan 0.0000000000e+00 5.7700000000e-03 5.7600000000e-03
>> 1366654500: nan 0.0000000000e+00 5.7700000000e-03 5.7600000000e-03
>> 1366654800: nan 0.0000000000e+00 5.7700000000e-03 5.7600000000e-03
>> 1366655100: nan 0.0000000000e+00 5.7714666667e-03 5.7600000000e-03
>>
>> Loss is in column 3 (0.0000000000e+00)
>>
>>
>>
>> -Russell Dwarshuis
>>
>> ----- Original Message -----
>> From: "Alessandro Palermo" <ok.aless at gmail.com>
>> To: smokeping-users at lists.oetiker.ch
>> Sent: Monday, April 22, 2013 10:42:46 AM
>> Subject: [smokeping-users] Get packet loss data in last ten days graph
>>
>>
>>
>>
>>
>> Hi list.
>> I'm monitoring around 300 wan links with fping probe with no problem. I
>> have tuned smokeping to get more information I have added a plugin to show
>> the lasts median rtt in a gauges view and a link to show the information
>> about the route of each wan links and record the changes in the routes.
>> Now I want to create a report to monitoring the packet loss in the last
>> ten day and send a mail with the graph of the links that have a packet loss
>> greater than 5% per example.
>> How can i get this value for the .rrd files? I've been inspected the rrd
>> files but I just see the last loss value.
>>
>> Thanks in advance
>>
>> _______________________________________________
>> smokeping-users mailing list
>> smokeping-users at lists.oetiker.ch
>> https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
>>
>
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