Speakers
Dr
Dantong Yu
(BROOKHAVEN NATIONAL LABORATORY)Dr
Dimitrios Katramatos
(BROOKHAVEN NATIONAL LABORATORY)
Description
A DOE MICS/SciDac funded project, TeraPaths, deployed and prototyped the use of
differentiated networking services based on a range of new transfer protocols to
support the global movement of data in the high energy physics distributed computing
environment. While this MPLS/LAN QoS work specifically targets networking issues at
BNL, the experience acquired and expertise developed is expected to be more globally
applicable to ATLAS and the high-energy physics community in general. TeraPaths is
used to dedicate a fraction of the available network bandwidth to ATLAS Tier 1 data
movement and limit its disruptive impact on BNL's heavy ion physics program and other
more general laboratory network needs. We developed a web service based software
system to automate the QoS configuration in LAN paths and negotiate network bandwidth
with remote network domains on behalf of end users. Our system architecture could be
easily integrated with other network management tools to provide a complete
end-to-end QoS solution. We demonstrated TeraPaths' effectiveness in data transfer
activities in Brookhaven National Lab. Our future work will focus on strategically
scheduling network resource to shorten the transfer time for mission critical data
relocation, thus reducing the error rates which are proportional to the transfer
time. We will manage network resources which typically span many administrative
domains, a unique characteristic compared with CPU and storage resource. The overall
goal remains providing a robust, effective network infrastructure for High Energy and
Nuclear Physics.
Primary authors
Dr
Bruce Gibbard
(BROOKHAVEN NATIONAL LABORATORY)
Dr
Dantong Yu
(BROOKHAVEN NATIONAL LABORATORY)
Mr
David Stampf
(BROOKHAVEN NATIONAL LABORATORY)
Dr
Dimitrios Katramatos
(BROOKHAVEN NATIONAL LABORATORY)
Mr
Frank Burstein
(BROOKHAVEN NATIONAL LABORATORY)
Dr
Razvan Popescu
(BROOKHAVEN NATIONAL LABORATORY)
Mr
Scott Bradley
(BROOKHAVEN NATIONAL LABORATORY)
