H. Newman
(Caltech)
30/09/2004, 14:00
Track 7 - Wide Area Networking
oral presentation
Wide area networks of sufficient, and rapidly increasing end-to-end
capability are vital for every phase of high energy physicists' work.
Our bandwidth usage, and the typical capacity of the major national
backbones and intercontinental links used by our field have
progressed by a factor of more than 1000 over the past decade, and the
outlook is for a similar increase over the next...
G. Lo Re
(INFN & CNAF Bologna)
30/09/2004, 14:20
Track 7 - Wide Area Networking
oral presentation
Next generation high energy physics experiments planned at the CERN
Large Hadron Collider is so demanding in terms of both computing
power and mass storage that data and CPU's can not be concentrated in
a single site and will be distributed on a computational Grid
according to a "multi-tier".
LHC experiments are made of several thousands of people from a few
hundreds of institutes...
Dr
S. Ravot
(Caltech)
30/09/2004, 14:40
Track 7 - Wide Area Networking
oral presentation
In this paper we describe the current state of the art in equipment, software and
methods for transferring large scientific datasets at high speed around the globe.
We first present a short introductory history of the use of networking in HEP, some
details on the evolution, current status and plans for the Caltech/CERN/DataTAG
transAtlantic link, and a description of the topology and...
Dr
J. Tanaka
(ICEPP, UNIVERSITY OF TOKYO)
30/09/2004, 15:00
Track 7 - Wide Area Networking
oral presentation
We have measured the performance of data transfer between CERN
and our laboratory, ICEPP, at the University of Tokyo in Japan.
The ICEPP will be one of the so-called regional centers for handling
the data from the ATLAS experiment which will start data taking in 2007.
More than petabytes of data are expected to be generated from the experiment
each year. It is therefore essential to...
Dr
Y. Kodama
(NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (AIST))
30/09/2004, 15:20
Track 7 - Wide Area Networking
oral presentation
It is important that the total bandwidth of the multiple streams should
not exceed the network bandwidth in order to achieve a stable network
flow with high performance in high bandwidth-delay product networks.
Software control of bandwidth for each stream sometimes exceed the
specified bandwidth. We proposed the hardware control technique for
total bandwidth of multiple streams with...
Mr
M. Grigoriev
(FERMILAB, USA)
30/09/2004, 15:40
Track 7 - Wide Area Networking
oral presentation
Large, distributed HEP collaborations, such as D0, CDF and US-CMS,
depend on stable and robust network paths between major world
research centers. The evolving emphasis on data and compute Grids
increases the reliance on network performance.
FermiLab's experimental groups and network support personnel
identified a critical need for WAN monitoring to ensure the quality
and efficient...
E. Ronchieri
(INFN CNAF)
30/09/2004, 16:30
Track 7 - Wide Area Networking
oral presentation
The problem of finding the best match between jobs and computing
resources is critical for an efficient work load distribution in
Grids. Very often jobs are preferably run on the Computing Elements
(CEs) that can retrieve a copy of the input files from a local
Storage Element (SE). This requires that multiple file copies are
generated and managed by a data replication system.
We...
P. DeMar
(FERMILAB)
30/09/2004, 16:50
Track 7 - Wide Area Networking
oral presentation
Advanced optical-based networks have the capacity and capability to meet the
extremely large data movement requirements of particle physics collaborations. To
date, research efforts in the advanced network area have been primarily been focused
on provisioning, dynamically configuring, and monitoring the wide area optical
network infrastructure itself. Application use of these...
R. Hughes-Jones
(THE UNIVERSITY OF MANCHESTER)
30/09/2004, 17:10
Track 7 - Wide Area Networking
oral presentation
How do we get High Throughput data transport to real users? The MB-NG project is a
major collaboration which brings together expertise from users, industry, equipment
providers and leading edge e-science application developers. Major successes in the
areas of Quality of Service (QoS) and managed bandwidth have provided a leading edge
U.K. Diffserv enabled network running at 2.5 Gbit/s....
Mr
G. Roediger
(CORPORATE COMPUTER SERVICES INC. - FERMILAB)
30/09/2004, 17:30
Track 7 - Wide Area Networking
oral presentation
A High Energy Physics experiment has between 200 and 1000 collaborating physicists
from nations spanning the entire globe. Each collaborator brings a unique
combination of interests, and each has to search through the same huge heap of
messages, research results, and other communication to find what is useful.
Too much scientific information is as useless as too little. It is time...
Mr
P. Galvez
(CALTECH)
30/09/2004, 17:50
Track 7 - Wide Area Networking
oral presentation
VRVS (Virtual Room Videoconferencing System) is a unique, globally
scalable next-generation system for real-time collaboration by small
workgroups, medium and large teams engaged in research, education and
outreach. VRVS operates over an ensemble of national and international
networks. Since it went into production service in early 1997, VRVS has
become a standard part of the toolset used...
Mrs
L. Ma
(INSTITUTE OF HIGH ENERGY PHYSICS)
30/09/2004, 18:10
Track 7 - Wide Area Networking
oral presentation
Network security at IHEP is becoming one of the most important issues
of computing environment. To protect its computing and network
resources against attacks and viruses from outside of the institute,
security measures to combat these are implemented. To enforce
security policy the network infrastructure was re-configured
to one intranet and two DMZ areas. New rules to control the...
