Pacific Northwest Gigapop


News & Events

New Internet2 Land Speed Record Set

ANN ARBOR, Mich. - March 8, 2006 - Internet2 today announced that an
international team set a new Internet2 Land Speed Records (I2-LSR) in both the IPv6 and IPv4 single and multi-stream categories. This record marks the
fourth time a University of Tokyo-lead team has achieved an Internet2 Land
Speed record. As an open and ongoing competition for the highest-bandwidth,
end-to-end networks, Internet2 LSR awards represent the fastest rate at which data is transferred multiplied by the distance traveled.

For the IPv4 record, a team from the University of Tokyo, WIDE Project, Microsoft Corp., Pacific Northwest Gigapop, JGN2 and other institutions collaborated to create a network path over 30,000 kilometers in distance
crossing eight international networks. In doing so, the team successfully
transferred data at a rate of 7.99 Gbps which is equal to 239,820 terabit-meters per second (Tb-m/s).

For the IPv6 record, a team from the University of Tokyo, WIDE Project, Pacific Northwest Gigapop, JGN2, Chelsio Communications and other
institutions created a path over 30,000 kilometers in distance crossing five
international networks. The team transferred data at a rate of 6.18 Gbps.
Achieving a mark of 185,400 terabit-meters per second (Tb-m/s) - 10.75% more than the previous record.

Dr. Kei Hiraki, professor at the University of Tokyo and LSR team leader said, "Through these trials, we are now demonstrating that the performance of IPv6 is almost on par with IPv4. For researchers and scientists around the world, this is a positive indication that IPv6 is now ready to be used in prime time for their high-performance applications."

For more information about this record-setting attempt, see:
For the IPv4 record:
For the IPv6 record:

Details of past winning entries, complete rules, submission guidelines, and
additional details are available at:

About Internet2(R)
Led by more than 200 U.S. universities working with industry and government,
Internet2 develops and deploys advanced network applications and
technologies for research and higher education, accelerating the creation of
tomorrow's Internet. Internet2 recreates the partnerships among academia,
industry, and government that helped foster today's Internet in its infancy.
For more information, visit:

Media Contact:
Lauren Rotman