perfsonar development work

["Ivan K. Koga" <>]

Ah,

Now I understand what you said...
To Start a measurement in AMP it needs to set some internal files.
The schedule file and nametable file.
In the nametable file there is the name and ip addresses of the 
destinations.
In the schedule file there is the test schedules to the destinations.

Example:
****************************
nametable
------------------
amp-bob 1.2.3.4
amp-ivan 2.3.4.5
amp-rnp 3.4.5.6
------------------

schedule
------------------
amp-ivan,icmp,D,0,86400000,300000
amp-ivan,path,D,0,86400000,3600000
------------------
What this example shows is the nametable converting the IP addresses to 
names.
The schedule shows a measurement between the local measurement point to 
amp-ivan.
The first one is a icmp test that will return round trip delay. it will 
measure a delay test (icmp), daily (D), starting at 0 hours (0), ending 
in 24hrs (86400000ms) and with an interval of 5 minutes each (300000ms)

The path test is almost the same, but the interval between measurements 
is 1 hour(3600000ms) .
****************************

AMP has a daemon that is always checking the configuration files and 
checking if there is new values.
If the schedule file has a new value inside, it will start the 
measurement of tests and will collect data.
The data will be available in the amp-data folder.
The amp-data folder will have this structure:

amp-data/ampname/endsite/datafile

ampname is the name of the local measurement point name.

endsite is the destination of the measurement (Ex: amp-ivan)

datafile is the files containing the values measured (ex: 
105-07-20-0084.icmp)

We can discuss about how to schedule tests and could create some 
messages to the MP-AMP too.
The scheduling of tests I am naming it MP-AMP and the step that only 
return the measured values i am naming MA-AMP.

I hope this explains better how amp measurements work.  :-)

Ivan

Jason Zurawski escreveu:
> Ivan;
>
> > I am sending examples of data collected with AMP. Maybe this will 
> > show better how this will be returned into the XML files.
>
> Could you also indicate how you got this data, and what you are 
> measuring?  i.e. if i want to send 1 ping:
>
> [jason@lager
>  ~$ ping -c 1 psu.edu
>
> I get this data:
>
> 64 bytes from tr12g05.aset.psu.edu (128.118.146.135): icmp_seq=1 
> ttl=242 time=23.1 ms
>
> The data you sent is great, but I need a bit more context :)
>
> -jason