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National and International Networking Infrastructure and Research. June 13, 2003 Mari Maeda NSF/CISE/ANIR. Infrastructure that enables: Scientific research Education and training Experimentation and strategic deployment to advance and introduce new networking capability

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national and international networking infrastructure and research

National and International Networking Infrastructure and Research

June 13, 2003

Mari Maeda


Infrastructure that enables:
  • Scientific research
  • Education and training
  • Experimentation and strategic deployment to advance and introduce new networking capability

Infrastructure/Infrastructure-enhancing Investments:

  • International Networks
  • High-Performance Network Connections (HPNC)
  • Optical Networking
  • Enhanced E2E networking protocols
  • Middleware
  • Network-stressing applications, collaborative apps, …
  • Network Research Testbeds

Advanced Network Infrastructure

  • What is the objective of the network?
  • (needs that cannot be served by Internet or other research/education networks)
  • What community or communities are being served? What research is enabled?
  • What network performance metrics are used and monitored?
  • Usage?
  • What is the use/participation policy?
  • (some examples: abilene, cenic, bossnet, atdnet)
international networks 1997 2004
International Networks (1997-2004)
  • STAR TAP /STAR LIGHT: Univ of Illinois at Chicago

Interconnect point for Abilene, Esnet, DREN, NREN, AMPATH, CA*NET4, SURFnet(Netherlands), NORDUnet, CER, TransPAC/APAN, NaukaNET, Asnet (Taiwan)

  • TransPAC: Indiana University
  • Euro-Link: University of Illinois at Chicago; Netherlands, France, Israel, Nordic.
  • MIRnet/Russia: University of Illinois (NCSA)
euro link
  • Euro-Link originally DS-3s from STAR TAP to France, Israel, Netherlands and Nordic countries
  • Today
  • OC192 to Netherlands
  • OC48 + OC12 to CERN
  • (Nordic at OC-3)
  • (France at OC-3)
  • (Israel - now uses GEANT)
  • Summer 2003
  • OC192 +OC192 to Netherlands
  • OC192 + OC12 to DOE
  • partly carrying Abilene and CAnet4 production transport between Chicago and Amsterdam)

Current TransPAC Network

OC-12 POS between Tokyo and Seattle

OC-12 ATM between Tokyo and Chicago


Short-term TransPAC Plans

  • Expand Tokyo-Chicago link (OC-48)
  • Shift from ATM to POS on Tokyo-Chicago link
  • Eliminate Tokyo-Seattle link (cost considerations)


Infrastructure/Infrastructure-enhancing Investments -- beyond raw connectivity and high-speed
  • International Networks
  • High-Performance Network Connections (HPNC)
  • Enhanced E2E networking protocols
  • Optical Networking
  • Middleware Research and Deployment
  • Network-stressing applications
  • Network Research Testbeds

Traditional VLBI

The Very-Long Baseline Interferometry (VLBI) Technique(with traditional data recording on magnetic tape or disk)

  • Highest precision (few mm) technique available for global tectonic measurements
  • Highest spatial and time resolution of Earth’s motion in space for the study of Earth’s interior
    • Earth-rotation measurements important for military/civilian navigation
    • Fundamental calibration for GPS constellation within Celestial Ref Frame
  • Highest resolution technique available to astronomers – tens of microarcseconds
  • Allows detailed studies of the most distant objects
scientific advantages of e vlbi real time
Scientific Advantages of e-VLBI (real -time)
  • Bandwidth growth potential for higher sensitivity
    • VLBI sensitivity (SNR) proportional to square root of Bandwidth resulting in a large increase in number of observable objects(only alternative is bigger antennas – hugely expensive)
    • e-VLBI bandwidth potential growth far exceeds recording capability(practical recordable data rate limited to ~1 Gbps)
  • Rapid processing turnaround
    • Astronomy
      • Ability to study transient phenomena with feedback to steer observations
    • Geodesy
      • Higher-precision measurements for geophysical investigations
      • Better Earth-orientation predictions, particularly UT1, important for military and civilian navigation
elements of e vlbi development
Elements of e-VLBI Development
  • Phase 1: Develop eVLBI-compatible data system
    • Mark 5 system development at MIT Haystack Observatory being supported by NRAO, NASA, USNO plus four international partners
    • Prototypes now deployed in U.S. and Europe
  • Phase 2: Demonstrate 1 Gbps e-VLBI using Boston-DC link
    • ~700km link between Haystack Observatory and NASA/GSFC
    • First e-VLBI experiment achieved ~788Mbps transfer rate
  • Phase 3: Develop adaptive network protocol(ANIR STI grant to Haystack Observatory; collaboration with MIT Lab for Computer Science and MIT Lincoln Laboratory);
    • New IP-based protocol tailored to operate in shared-network ‘background’ to efficiently using available bandwidth
    • Demonstrate on national and international networks
westford to kashima e vlbi experiment
Westford-to-Kashima e-VLBI experiment
  • Westford/Kashima experiment conducted on 15 Oct 02
    • Data recorded on K5 at Kashima and Mark 5 at Westford at 256 Mbps
    • Files exchanged over Abilene/GEMnet networks
      • Nominal speed expected to be ~20 Mbps, but achieved <2 Mbps for unknown reasons - investigating
    • File formats software translated
    • Correlation on Mark 4 correlator at Haystack and PC Software correlator at Kashima
    • Nominal fringes obtained
    • Further experiments are anticipated

Networking Research Testbeds (NRT)

  • Networks that are designed and built by networking researchers for the purpose of advancing networking research.
  • Fully controlled experimental environment.
  • Demonstration of prototype network sw/hw.
  • Deployment of experimental platform, benchmark suite, tools (traffic generators, configuration and deployment tools) integration with simulation and emulation systems.
  • Research examples:
    • -network security (DDOS/worm attack defense)
    • -wireless networking (MANET benchmarking, sensor networking)
    • -new generation of optical networking techniques
    • -overlays (e.g. PLANETLAB)
igrid 2002 september 24 26 2002 amsterdam the netherlands
iGrid 2002September 24-26, 2002, Amsterdam, The Netherlands
  • 16 countries: Australia, Canada, CERN/Switzerland, France, Finland, Germany, Greece, Italy, Japan, Netherlands, Singapore, Spain, Sweden, Taiwan, UK, US
  • Applications demonstrated: art, bioinformatics, chemistry, cosmology, cultural heritage, education, high-definition media streaming, manufacturing medicine, neuroscience, physics, tele-science
  • Grid technologies demonstrated: Major emphasis on grid middleware, data management grids, data replication grids, visualization grids, teleimmersion grids, data/visualization grids, computational grids, access grids, grid portals
  • 25Gb transatlantic bandwidth (100Mb/attendee, 250x iGrid2000! )