Lack of IPv6 traffic stats makes judging progress difficult

By , Network World |  Networking, IPv6

The Internet is poised to undergo the biggest upgrade in its 40-year history: from the current version of the Internet Protocol known as IPv4 to a new version dubbed IPv6, which offers an expanded addressing scheme for supporting new users and devices.

However, it will be difficult for Internet policymakers, engineers and the user community at large to tell how the upgrade to IPv6 is progressing because no one has accurate or comprehensive statistics about how much Internet traffic is IPv6 vs. IPv4.

RELATED: What if IPv6 simply fails to catch on?

The issue of IPv6 traffic measurement is timely given that the Internet engineering community is preparing for its biggest trial of IPv6: World IPv6 Day on June 8. So far, 225 website operators -- including Google, Yahoo and Facebook -- have agreed to participate in the event by serving up their content via IPv6 for 24 hours.

Without accurate IPv6 traffic statistics, neither the sponsors nor the participants of World IPv6 Day will be able to tell for sure how much IPv6 traffic is sent over the Internet on June 8 or how much difference the event has on IPv6 traffic volumes afterward.

"Being able to measure IPv4 vs. IPv6 is very important," says John Brzozowski, distinguished engineer and chief architect for IPv6 at Comcast, which has deployed an emerging tool called NetFlow 9 in parts of its network to measure IPv4 and IPv6 traffic volumes. "We as a community need to be able to measure our progress and success. IPv4 vs. IPv6 traffic is one of many important metrics."

IPv6 traffic data "is useful in understanding the trend of adoption, but I don't think it's critical for a carrier to understand that they have to properly support their customers," says Dave Siegel, vice president of IP Services Product Management at Global Crossing. Siegel adds that "it's most important to have tools available to troubleshoot IPv6 issues."


Originally published on Network World |  Click here to read the original story.
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