Notes from HEP Internet Monitoring Meeting, CHEP97, Berlin 1997
Bill Lidinsky; edited by
Mini Workshop on HEP & the Internet |
Agenda for afternoon Monitoring session
The following are transcriptions, made by
Bill Lidinsky, from the white board used during the
final section of the
Mini Workshop on HEP & the Internet held before CHEP97, in
Berlin April 1997. The purpose of this section of the Workshop was to
- What do we need to do to meet ICFA requirement;
- Who is interested in doing it;
- How do we organize, e.g.
- Mailing List;
- Action Items;
- Follow on meetings (voice, video, face-to-face).
Possible activities that need to be pursued by HEP include:
It was agreed to deploy the HEPNRC/SLAC software to critical HEP sites, then
gather existing statistics and summarize.
- Widely deploy HEPNRC/SLAC tools at major HEP sites;
- Need uniform monitoring
to provide overviews to ICFA
both for the long term and to show the
effects of improvement.
- Breakdown of traffic by parameters defining what is important to HEP.
There are tools to do this
(tools like netflow), but it can be difficult since we
don't own routers on the Internet, can't install monitors inside Internet.
are privacy issues etc.
- Develop measures to show need for mission-oriented intercontinental links
Traceroute to identify congestion on longer term
(see for example the work by Carleton, Oxford).
Collection sites could also measure kbps on files fetched;
- Put fixed size web pages at client site and get regularly;
- Also ask ISPs to install for showing link overload points - probably not
- Put up dedicated single server at critical sites/Internet points.
Volunteers to whom HEPNRC will deliver software:
CERN (Olivier Martin),
KEK (Yukio Karita),
TRIUMF (Rene P.),
KFKI (Piroska Giese),
RAL (Paul Jeffries),
DESY (Michael Ernst),
MSU (Sergei Bereznhev).
It was also agreed that traceping (Oxford) and/or the Carleton trace tools
would be useful for diagnostics, but they are not ready for distribution yet.
The authors are encouraged to make the tools available.