is the name given to the project to monitor End-to-end performance of Internet links. The project
has become quite large and the HEP effort now involves
hundreds of sites in many countries all over the world
. See Requirements for PingER Monitoring Sites and
WAN Hosts being Monitored for requirements.
Collecting your own data
Data collection (ie pinging of remote nodes) by the monitoring sites
is done by pinger.pl (prior to June 2005 and the
introduction of the new
PingER2 installation method
this was done by timeping.pl) - see the
PingER2 installation page
for details on obtaining and installing the PingER software to make the measurements.
Data from Other Sites
You can download data gathered from various monitoring sites from the respective sites web page. See
the list of participating sites
for links to the data. See also the next section for tools used to automate this retrieval.
The monitoring site provides the data through a web accessible form created by
Analysis of the data, that is calculating a value for the ping loss and the ping response etc for the
month can be done with the following perl scripts (it can also be done with a database such as
). These tools are intended to be run nightly to compile the data for the previous day.
All the programs in the
suite rely on this configuration file. It provides the programs with the paths to files and other
programs on your system. By far the biggest section deals with providing details on the
An example configuration file is available from our FTP site
I am also developing a tool to help in the configuration of the configuration file which will
dramatically reduce the work involved in setting this all up.
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Ready made reports
The reports for the
HEP Monitoring effort
compiled using the tools are not currently available on-line in plain text form, only via the web
page described in the next point. I intend to create a link to the reports and make them available
on the web.
All the by-node and by-site reports generated by the scripts described here can be displayed
on-line using a
CGI script called
The script is available from our FTP site
Revised June 24, 2006, (17 June 1999)