IPv6 sets network speed record

The Internet2 advanced networking consortium announced that its researchers have broken their own bandwidth record for long-distance data transfer.

On Dec. 31, the research team engineered a throughput of 9.08 gigabits per second across 20,500 miles of network, or over three-quarters of the Earth's circumference. The packets traveled between Tokyo and Amsterdam, by way of Chicago.

For this test, the team used a modified version of Transmission Control Protocol, in conjunction with Internet Protocol version 6. A day earlier, the research team engineered a throughput of 7.67 Gbps over the same path, using standard TCP.

For Internet2 researchers, the tests showed the validity of IPv6.

'The team surpassed the current IPv4 records, proving that IPv6 networks are able to provide the same, if not better, performance as IPv4,' trumpeted an Internet2 announcement issued Tuesday.

The former record, set in February 2006, achieved a throughput of 8.80 Gbps across 20,500 miles, using IPv4. An Internet2 Land Speed Record is calculated by multiplying the rate data is transferred by the distance that data travels.

University of Tokyo led the research team, and was supported by NTT Communications and network operators from the Japanese Widely Integrated Distributed Environment, the Japan Gigabit Network 11, the Netherlands' SURFnet, Canada's CANARIE and the Pacific Northwest Gigapop.

About the Author

Joab Jackson is the senior technology editor for Government Computer News.

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