ATLAS TDAQ dataflow network architecture analysis and upgrade proposal

Author

Stancu, Stefan ; Ciobotaru, Matei ; Korcyl, Krzysztof

Author_Institution

California Univ., Irvine, CA

fYear

2005

fDate

10-10 June 2005

Abstract

The real-time operation of the ATLAS dataflow system is highly dependent on the performance of the gigabit Ethernet network interconnecting its components (ap800 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 model simulations is 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; local area networks; ATLAS TDAQ dataflow network architecture; discrete model simulation; fault tolerance; gigabit Ethernet network; network testing equipment; telecommunication traffic; Bandwidth; Data analysis; Design for manufacture; Ethernet networks; Filters; Performance analysis; Proposals; Real time systems; Telecommunication traffic; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 2005. 14th IEEE-NPSS

Conference_Location

Stockholm

Print_ISBN

0-7803-9183-7

Type

conf

DOI

10.1109/RTC.2005.1547531

Filename

1547531