On 22/11/2013 21:54, joel jaeggli wrote: ... > It's not unreasonable to expect more failure than success as part of the > human enterprise. If anything the structure of incentives around IETF > activities tend (imho) to cause us to spend more time dwelling on the > failures, the things that turned out to be a bad idea, and so forth then > simply moving on. That's true enough. However, I'm not sure that a protocol whose usage rate has grown by a factor of ~5.5 relative to total Internet traffic in the last two years, at one significant content provider, is ready to be declared a failure. That would normally be considered a success. (Data from http://www.google.com/ipv6/statistics.html) Ditto for a protocol whose usage has grown by a factor of ~5 since May this year at another significant measurement point. (Data from http://www.akamai.com/ipv6) http://www.worldipv6launch.org/measurements/ for more data. Brian