HEP Research & Network Service in Taiwan

APAN-TW Secretariat Dr. Simon C. LinAPAN-TW NOC Mr. Wenshui Chen

2003-1-20

Outline

• HEP group in Taiwan and collaboration joined

• Highlights• Network Activities• Requirements• APAN-TW Network Service for HEP

projects• Issues

HEP group in Taiwan and collaboration joined

• Academia Sinica: Join Fermilab CDF Collaboration in 1993.

• National Central University: L3 at CERN (1990)

• National Taiwan University: Belle at KEK (1995)

HEP group in Taiwan and collaboration joined (cont.)

• All three groups join the LHC at CERN.– LHC is next generation high energy particle c

ollider.– AS: ATLAS(A Toroidal LHC ApparatuS )– NCU and NTU.: CMS

CDF

• CDF: The Collider Detector at Fermilab• More than 500 physicists work on the collaborati

on• The discovery of the top quark was one of the m

ajor results of the CDF collaboration.

CDF (cont.)

• Installation of Silicon Detector into the CDF Detector

Highlights• CDF:

– Top quake discovery in 1995. Taiwan is one of the 5 countries in CDF.

– Evident of CP violation in B sector (1997) (Sin(2beta) measurement)

• Belle:– CP Violation in B Physics(2002).

• L3:– Higgs Search: Find one Higgs candidate (2000)

Network Activities

• The major network activities for an HEP experiment include– Get data set from KEK: FTP, sftp– Run experiment on remote server: Telnet, ssh– Multipoint Video Conference

• VRVS• H.323/H.320 conferencing facility, MCU (Multipoint

Control Unit)

Requirements

• Sufficient bandwidth for Transferring data set with size of 2 ~ 20 GBytes for multiple researchers at the same.

• Sufficient bandwidth and efficient management to support stable multipoint video conferencing

• Within 2 ~ 3 years, the network should be able to support Tera Byte data file transferring bi-directionally, not including GRID requirement.

Expected Network PerformanceUnacceptalbe

Good

APAN-TW Network Service for HEP projects

• International network Connection• Video Conference Facilities

– H.320: PictureTel– H.323:Polycom VS4000– MCU: Polycom MGC500; capable to support

24 concurrent sessions• QoS

ASIA regional Network Development

• 1999-5 TW-KEK 256kbps IPLC for HEP projects

• 2001-1 TW-KEK IPLC upgrade to 1.54Mbps

• 2002-2 TW-APAN IPLC 155Mbps• 2003-2 TW-StarLight STM4 link

APAN-TW Network Infrastructure 2003

• TW-USA: 622Mbps(2002-11)– TANet: 440Mbps for Internet-1

• Another 3 STM1s under negotiation– TANet2: 180Mbps

• GE to PNW-gigapop for Abilene• T3 to Chicago for STARTAP

• TW-StarLight: STM4(2003-2)• TW-London: STM1 (2003-2)• TW-APAN: STM1(2002-2)• TW-HARNet: STM1(2002-2)

APAN-TW ASIA Research Network Connectivity(Jan,’03)

APAN-TW Network Infrastructure Future Plan

• TW-APAN: STM4• TW-StarLight: STM16 (for GRID applicatio

n)• TW-SouthEastASIA: STM1

Issues

• Packet delivering via the most effective path

• Stable Quality of Videoconference: QoS• Data Transferring Correctness• Future Network Plan must be able to supp

ort GRID