Title :
ATLAS TDAQ DataFlow network architecture analysis and upgrade proposal
Author :
Stancu, Stefan ; Ciobotaru, Matei ; Korcyl, Krzysztof
Author_Institution :
California Univ., Irvine, CA, USA
fDate :
6/1/2006 12:00:00 AM
Abstract :
The real-time operation of the ATLAS DataFlow system is highly dependent on the performance of the Gigabit Ethernet network interconnecting its components (≈800 end nodes). After examining the functional and performance requirements of the network, several design alternatives (with respect to traffic repartition on core devices and available concentration technologies) are presented and analyzed. We introduce the use of 10 Gigabit Ethernet as a flexible and simple technology for concentrating traffic. Network testing equipment as well as discrete event model simulations are used to assess the performance of various implementation options. Based on performance, fault tolerance and flexibility considerations a preferred architecture is proposed for implementation.
Keywords :
data acquisition; discrete event simulation; fault tolerance; high energy physics instrumentation computing; local area networks; nuclear electronics; performance evaluation; position sensitive particle detectors; real-time systems; ATLAS TDAQ dataflow network architecture; core devices; data acquisition; discrete event model simulations; fault tolerance; gigabit Ethernet network; network testing equipment; real-time operation; traffic repartition; Data analysis; Discrete event simulation; Ethernet networks; Fault tolerance; Performance analysis; Proposals; Real time systems; Telecommunication traffic; Testing; Traffic control; 10 Gigabit Ethernet; data acquisition; modeling; network architectures;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2006.873302
