HEP Research

1
HEP Research Network Service in Taiwan

• APAN-TW Secretariat Dr. Simon C. Lin
• APAN-TW NOC Mr. Wenshui Chen
• 2003-1-20

2
Outline

• HEP group in Taiwan and collaboration joined
• Highlights
• Network Activities
• Requirements
• APAN-TW Network Service for HEP projects
• Issues

3
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)

4
HEP group in Taiwan and collaboration joined
(cont.)

• All three groups join the LHC at CERN.
• LHC is next generation high energy particle
  collider.
• AS ATLAS(A Toroidal LHC ApparatuS )
• NCU and NTU. CMS

5
CDF

• CDF The Collider Detector at Fermilab
• More than 500 physicists work on the
  collaboration
• The discovery of the top quark was one of the
  major results of the CDF collaboration.

6
CDF (cont.)

• Installation of Silicon Detector into the CDF
  Detector

7
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)

8
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)

9
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.

10
Expected Network Performance
Unacceptalbe
Good
11
APAN-TW Network Service for HEP projects

• International network Connection
• Video Conference Facilities
• H.320 PictureTel
• H.323Polycom VS4000
• MCU Polycom MGC500 capable to support 24
  concurrent sessions
• QoS

12
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

13
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)

14
APAN-TW ASIA Research Network Connectivity(Jan,03
)
15
APAN-TW Network Infrastructure Future Plan

• TW-APAN STM4
• TW-StarLight STM16 (for GRID application)
• TW-SouthEastASIA STM1

16
Issues

• Packet delivering via the most effective path
• Stable Quality of Videoconference QoS
• Data Transferring Correctness
• Future Network Plan must be able to support GRID