Internet2 Land Speed Record History

The Internet2 Land Speed Record (I2-LSR) competition for the highest-bandwidth, end-to-end networks is an open and ongoing contest.

Internet2 Land Speed Record entries are judged on a combination of how much bandwidth they used and how much distance they covered end-to-end, using standard Internet (TCP/IP) protocols. Complete rules and a summary of current records are available at the Internet2 Land Speed Record home page.

I2-LSR Timeline

31 December 2006

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 277,400 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • NTT Communications
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Time: 5 hours
  • Average throughput: 9.08 gigabits per second
  • Software Notes:
    • Linux kernel 2.6.18.5 x86_64 / CentOS 4.4
    • Modified iperf for generating TCP packets
  • Hardware Notes:
    • Intel Xeon(woodcrest), 3.00GHz dual core (Sender and Receiver server)
    • SUPERMICRO X7DBE motherboard
    • 4GB memory
    • 500GB SATA disk
    • Chelsio S310E-SR 10Gigabit Ethernet Adapter
  • Web site

30 December 2006

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 230,100 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • NTT Communications
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Time: 20 minutes
  • Average throughput: 7.67gigabits per second
  • Software Notes:
    • Linux kernel 2.6.18.5 x86_64 / CentOS 4.4
    • iperf for generating TCP packets
  • Hardware Notes:
    • Intel Xeon(woodcrest), 3.00GHz dual core (Sender and Receiver server)
    • SUPERMICRO X7DBE motherboard
    • 4GB memory
    • 500GB SATA disk
    • Chelsio S310E-SR 10Gigabit Ethernet Adapter
  • Web site

20 February 2006

  • Records Set: IPv4 Single and Multiple Stream
  • I2-LSR Record: 264,147 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • Chelsio Communications
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Data transferred: 2.767 terabytes (approx.)
  • Time: 45 minutes (approx)
  • Average throughput: 8.80 gigabits per second
  • Software notes:
    • operating system: OS: Linux kernel 2.6.12
  • Hardware notes:
    • CPU: Four Intel Xeon MP, 3.66GHz
    • IBM x366 Server
    • Memory: 32GB PC3200 DDR2
    • Disk: 440GB disk (SAS)(disk speed not essential for performance)
    • Network interface card
      • Chelsio T310-X (10GBASE-SR)
      • PCI-X 2.0 I/O bus connection
  • Web site

14 November 2005

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 208,800 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • JGN2
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Data transferred: 608 gigabytes (approx.)
  • Time: 12.5 seconds
  • Average throughput: 6.96 gigabits per second
  • Software notes:
    • OS: Linux kernel 2.6.14
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 248, 2.2GHz
      • Mother Board: RioWorks HDAMA rev. E
      • Memory: 1G bytes, Corsair Twinx CMX512RE-3200LLPT x 2, PC3200, CL=2
      • Disk Seagate IDE 80GB, 7200r.p.m. (disk speed not essential for performance)
    • Network hardware
      • Chelsio N110 (10GBASE-SR)
      • PCI-X/133 MHz I/O bus connection
      • SANSEI-system TGNLE-1 receiving-side pacing device
  • Web site

12 November 2005

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 185,400 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • JGN2
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Average throughput: 6.22 gigabits per second
  • Software notes:
    • OS: Linux kernel 2.6.14
  • Hardware notes:
    • CPU: Dual AMD Opteron 248, 2.2GHz
    • Mother Board: RioWorks HDAMA rev. E
    • Memory: 1G bytes, Corsair Twinx CMX512RE-3200LLPT x 2, PC3200, CL=2
    • Disk Seagate IDE 80GB, 7200r.p.m. (disk speed not essential for performance)
  • Network hardware
    • Chelsio N110 (10GBASE-SR)
    • PCI-X/133 MHz I/O bus connection
  • Web site

10 November 2005

  • Records Set: IPv4 Single and Multiple Stream
  • I2-LSR Record: 239,820 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • Microsoft Corporation
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Data transferred: 1.802 terabytes
  • Average throughput: 7.99 gigabits per second
  • Software notes:
    • Windows Server2003 SP1 x64 (version 5.2, build 1830)
    • Neterion XframeII Driver (Ver. 2.0.10.0)
    • NTttcp for generating TCP packets
  • Hardware notes:
    • Four Intel Xeon MP 3.6GHz clock
    • Sender: 8GB memory PC3200 DDR2
    • Receiver: 32GB memory PC3200 DDR2
    • 440GB disk (SAS)
    • Neterion Xframe II network interface card with PCI-X 2.0 bus connection
  • Web site

29 October 2005

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 167,400 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • JGN2
    • et al.
  • Network Distance: 30,000 kilometers (effective)
  • Data transferred: 585 gigabytes (approx.)
  • Time: 15 minutes
  • Average throughput: 5.58 gigabits per second
  • Software notes:
    • operating system: Linux kernel 2.6.1.2
    • application: Iperf
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 248, 2.2GHz CPU
    • Network interface card:
      • Chelsio T110 10 Gigabit Ethernet Adapter
      • PCI-X/133 MHz I/O bus connection
      • TOE function OFF
  • Web site

28 October 2005

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 91,838 terabit-meters per second
  • Team Members
    • The University of Tokyo
    • WIDE Project
    • JGN2
    • et al.
  • Network Distance: 15,461 kilometers (effective)
  • Data transferred: 585 gigabytes (approx.)
  • Time: 15 minutes
  • Average throughput: 5.94 gigabits per second
  • Software notes:
    • operating system: Linux kernel 2.6.1.2
    • application: Iperf
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 248, 2.2GHz CPU
    • Network interface card:
      • Chelsio T110 10 Gigabit Ethernet Adapter
      • PCI-X/133 MHz I/O bus connection
      • TOE function OFF
  • Web site

19 January 2005

  • Records Set: IPv6 Single and Multiple Stream
  • I2-LSR Record: 72,225 terabit-meters per second
  • Team Members
    • Caltech
    • CERN
  • Network Distance: 14,134 kilometers
  • Data transferred: 357 gigabytes (approx.)
  • Time: 10 minutes
  • Average throughput: 5.11 gigabits per second
  • Software notes:
    • operating system: Linux kernel 2.6.8
    • application: Iperf
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 250, 2.4GHz CPU
    • Network interface card: S290 Neterion Xframe 10 GigE
  • Web site

24 December 2004

  • Records Set: IPv4 Single and Multiple Stream
  • I2-LSR Record: 216,300 terabit-meters per second
  • Team Members
    • University of Tokyo
    • WIDE project
    • Chelsio Communications
    • et al.
  • Network Distance: 30,000 kilometers
  • Data transferred: 1485 gigabytes (approx.)
  • Time: 30 minutes
  • Average throughput: 7.21 gigabits per second
  • Software notes:
    • operating system: Linux kernel 2.6.6
    • application: Iperf
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 248, 2.2GHz CPU, RioWorks HDAMA rev. E
      • Memory: 1G bytes, Corsair Twinx CMX512RE-3200LLPT x 2, PC3200, CL=2
      • Disk Seagate IDE 80GB, 7200r.p.m. (disk speed not essential for performance)
    • Network interface card: Chelsio T110 TCP offload engine (TOE)
  • Web site

9 November 2004

  • Record Set: IPv4 Single Stream
  • I2-LSR Record: 148,850 terabit-meters per second
  • Team Members
    • University of Tokyo
    • Fujitsu Computer Technologies
    • WIDE project
  • Network Distance: 20,645 kilometers
  • Data transferred: 541 gigabytes (approx.)
  • Time: 10 minutes (approx.)
  • Software notes:
    • operating system: Linux kernel 2.6.6
    • application: Iperf
  • Hardware notes:
    • End systems:
      • CPU: Dual AMD Opteron 248, 2.2GHz CPU, RioWorks HDAMA rev. E
      • Memory: 1G bytes, Corsair Twinx CMX512RE-3200LLPT x 2, PC3200, CL=2
      • Disk Seagate IDE 80GB, 7200r.p.m. (disk speed not essential for performance)
    • Network interface card: Chelsio T110 TCP offload engine (TOE)
  • Web site

8 November 2004

  • Record Set: IPv4 Multiple Stream
  • I2-LSR Record: 184,877 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
    • CENIC
  • Network Distance: 26,950 kilometers
  • Data transferred: 2881 gigabytes
  • Time: 1 hour
  • Software notes:
    • operating system: Linux kernel 2.6.9 with Caltech's FAST TCP
    • application: Iperf
  • Hardware notes:
    • End systems: Dual Opteron 250 machines (2.4 Ghz)
    • Network interfaces: S2io Xframe 10 Gigabit Ethernet Adapter
  • Web site

12 September 2004

  • Records Set: IPv4 Multiple and Single Stream
  • I2-LSR Record: 124,935 terabit-meters per second
  • Team Members
    • SUNET
    • Sprint
  • Network Distance: 28,983 kilometers
  • Data transferred: 1831 gigabytes
  • Time: 3648 seconds (approx.)
  • Web site

28 June 2004

  • Record Set: IPv4 Single Stream
  • I2-LSR Record: 103,583 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 15,776 kilometers
  • Data transferred: 849 gigabytes
  • Time: 600 seconds (approx.)
  • Web site

25 June 2004

  • Record Set: IPv4 Multiple Stream
  • I2-LSR Record: 104,529 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 15,776 kilometers
  • Data transferred: 859 gigabytes
  • Time: 1037 seconds (approx.)
  • Software notes:
    • operating system: Windows Server 2003 64-Bit Extended Systems Edition
    • application: NTttcp
  • Hardware notes:
    • Sender: Newisys 4300 Quad AMD Opteron Enterprise Server with AMD-8131
    • Receiver: Intel Quad Itanium2 SR870BN4 Server with Intel E8870 chipset
    • Network interfaces (sender and receiver): S2io 10GE NIC
  • Web site

6 May 2004

  • Record Set: IPv4 Multiple Stream
  • I2-LSR Record: 77,699 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 10959 kilometers
  • Data transferred: 860 gigabytes
  • Time: 970 seconds (approx.)
  • Software notes:
    • operating system: Windows Server 2003 64-Bit Extended Systems Edition
    • application: NTttcp
  • Hardware notes:
    • Sender: Newisys 4300 Quad AMD Opteron Enterprise Server with AMD-8131
    • Receiver: Intel Quad Itanium2 SR870BN4 Server with Intel E8870 chipset
    • Network interfaces (sender and receiver): S2io 10GE NIC
  • Web site

14 April 2004

  • Record Set: IPv4 Single Stream
  • I2-LSR Record: 69,073 terabit-meters per second
  • Team Members
    • SUNET
    • Sprint
  • Network Distance: 16,343 kilometers
  • Data transferred: 838.86 gigabytes
  • Time: 1588 seconds (approx.)
  • Software notes:
    • NetBSD Operating System
    • application: ttcp
  • Hardware notes:
    • Dell 2650 servers (both sender and receiver), each with single Intel Xeon 2.0 GHz CPU. and 512 Mbytes of RAM
    • Network interfaces: Intel® PRO/10GbE
  • Web site

22 February 2004

  • Record Set: IPv4 Multiple Stream
  • I2-LSR Record: 68,431 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 10,949 kilometers
  • Data transferred: 499 gigabytes (approx.)
  • Time: 600 seconds (approx.)
  • Software notes:
    • Windows Server 2003 64-Bit Edition
    • NTttcp test tool (part of Windows 2000 DDK) with the Jumbo Frames (9000).
    • TCP Reno
  • Hardware notes:
    • sender and receiver: 4U Intel® Quad Itanium2 SR870BN4 Servers with Intel® E8870 chipsets
    • Network interfaces: sender-s2io 10GE NIC, receiver-Intel® 10GE LR NIC
    • Performance was tested with PCI clock frequencies 133-MHz in 64-bit mode
  • Web site

18 November 2003

  • Record Set: IPv6 Single and Multiple Streams
  • I2-LSR Record: 46,156 terabit-meters per second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 10,949 kilometers
  • Data transferred: 560 gigabytes
  • Time: 1200 seconds
  • Software notes:
    • Vanilla Linux kernel (Kernel 2.6.0 )
    • Jumbo frames (9000 Bytes)
    • Iperf 1.7.0
    • IPv6 TCP Reno
  • Hardware notes:
    • sender: HP RX workstation - Dual Itanium2 1.5 Ghz, 4GB RAM
    • receiver: Dual Xeon 3.06 Ghz and Supermicro X5DPE motherboard (E7501 chipset)
    • Network interfaces: Intel® PRO/10GbE LR
  • Web site

11 November 2003

  • Record Set: IPv4 Single and Multiple Streams
  • I2-LSR Record: 61,752 terabit-meters/second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 10,949 kilometers
  • Data transferred: 2.3 terabytes
  • Time: 3600 seconds
  • Software notes:
    • Iperf 1.7.0
    • Vanilla Linux kernel (Kernel 2.6.0 / 2.4.22- TCP Reno)
    • Jumbo frames (9000 Bytes)
  • Hardware notes:
    • sender: HP RX workstation - Dual Itanium2 1.5 Ghz, 4GB RAM
    • receiver: Dual Xeon 3.06 Ghz and Supermicro X5DPE motherboard (E7501 chipset)
    • Network interfaces: Intel® PRO/10GbE LR
  • Web site

1 October 2003

  • Record Set: IPv4 Single and Multiple Streams
  • I2-LSR Record: 38,420.54 terabit-meters/second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 7,067 kilometers
  • Data transferred: 1.1 terabytes
  • Time: 1620.5 seconds
  • Software notes:
    • operating system: Red Hat Linux 7.3 - Linux Kernel 2.4.20
    • application: Iperf version 1.7.0
  • Hardware notes:
    • sender: HP RX workstation - Dual Itanium2 1.5 Ghz, 4GB RAM
    • receiver: Dual Xeon 3.06 Ghz and Supermicro X5DPE motherboard (E7501 chipset)
    • Network interfaces: Intel® PRO/10GbE LR
  • Web site
  • Press Release

6 May 2003

  • Record Set: IPv6 Single and Multiple Streams
  • I2-LSR Record: 6,947 terabit-meters/second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
  • Network Distance: 7,067 kilometers
  • Data transferred: 412 gigabytes
  • Time: 3600 seconds
  • Software notes:
    • operating system: Red Hat Linux 7.3 - Linux Kernel 2.4.20
    • application: Iperf version 1.7.0
  • Hardware notes:
    • Intel(R) XEON(TM) PC - Two CPUs at 2.20GHz
    • Syskonnect Gigabit Ethernet Interface
  • Web site
  • Press Release

27 February 2003

  • Record Set: IPv4 Single and Multiple Streams
  • I2-LSR Record: 23,888.06 terabit-meters/second
  • Team Members
    • California Institute of Technology (Caltech)
    • CERN
    • Los Alamos National Laboratory (LANL)
    • Stanford Linear Accelerator Center (SLAC)
  • Network Distance: 10,037 kilometers
  • Data transferred: 1.1 terabytes
  • Time: 3700 seconds

19 November 2002

  • Record Set: IPv4 Single and Multiple Streams
  • I2-LSR Record: 10,136.15 terabit-meters/second
  • Team Members
    • Nationaal Instituut voor Kernfysica en Hoge-Energiefysica (NIKHEF)
    • Universiteit van Amsterdam (UvA)
    • Stanford Linear Accelerator Center (SLAC)
    • California Institute of Technology (Caltech)
  • Network Distance: 10,978 kilometers
  • Data transferred: 6.71 gigabytes
  • Time: 58.146 seconds
  • Press Release

9 October 2002

  • Record Set: IPv6 Single Stream
  • I2-LSR Record: 5,154 terabit-meters/second
  • Team Members
    • ARNES
    • DANTE
    • RedIRIS
  • Network Distance: 14,800 kilometers
  • Data transferred: 675 megabytes
  • Time: 16.26 seconds
  • Press Release

27 September 2002

  • Record Set: IPv6 Single Stream
  • I2-LSR Record: 1215 terabit-meters/second
  • Team Members
    • ARNES
    • DANTE
    • RedIRIS
  • Network Distance: 2517.5 kilometers
  • Data transferred: 675 megabytes
  • Time: 11.73 seconds
  • Press Release

22 August 2002

  • Record Set: IPv6 Multiple Stream
  • I2-LSR Record: 39.81 terabit-meters/second
  • Team Members
    • Oregon Gigapop
    • NYSERNet
    • University of Oregon
  • Network Distance: 4810 kilometers
  • Data transferred: 3.64 gigabytes
  • Time: 1 hour
  • Software notes: INN news server software
  • Hardware notes:
    • Source: Intel Pentium running Linux
    • Sink: Intel Pentium III 500MHz CPU with 512MB core running Debian GNU/Linux 3.0
  • Network notes: Native IPv6 over NYSERNet, Oregon Gigapop, and Abilene
  • Press Release

9 April 2002

  • Record Set: IPv4 Single Stream
  • I2-LSR Record: 4,933 terabit-meters per second
  • Team Members
    • University of Alaska at Fairbanks
    • Faculty of Science of the University of Amsterdam
    • SURFnet
  • Network Distance: 12,272 kilometers
  • Data transferred: 625 megabytes
  • Time: 13 seconds
  • Press Release

29 March 2000

  • Record Set: IPv4 Multiple Stream
  • I2-LSR Record: 5,384 terabit-meters per second
  • Team Members
    • Microsoft
    • Qwest Communications
    • University of Washington
    • USC Information Sciences Institute
  • Network Distance: 5626 kilometers
  • Data transferred: 8.4 gigabytes
  • Time: 81 seconds
  • Data rate: 957 megabits per second
  • Press Release

21 March 2000

  • Record Set: IPv4 Single Stream
  • I2-LSR Record: 4,278 terabit-meters per second
  • Team Members
    • Microsoft
    • Qwest Communications
    • University of Washington
    • USC Information Sciences Institute
  • Network Distance: 5626 kilometers
  • Data transferred: 28 gigabytes
  • Time: 300 seconds
  • Data rate: 751 megabits per second
  • Press Release

Thanks to Wilson Dillaway of Tufts and Matt Mathis of Pittsburgh Supercomputing Center for the nearly simultaneous suggestions to create and post a History of the I2-LSR Web page.

Please send additional suggestions to: lsr@internet2.edu.

(Last updated 1 May 2007)

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