On Jul 30, 2011, at 10:45 AM, JORDI PALET MARTINEZ wrote: > However, for what it matters here, 6rd is native after exiting from the > ISP, same as 6to4 is native after exiting from the 6to4 relay. > > As we may not be able to know how "much" of the "native" IPv6 traffic is > 6rd in the last mile, I think we should consider all 6rd traffic as native > for those measurements, otherwise, we will be biasing the data. Even it > may be the case of an ISP using 6rd for some part of its network, and > native for the other. good points. I suspect that what many people are interested in is not whether the v6 traffic is "native" end-to-end, but rather, something like: a) How much of this traffic is _managed_ end-to-end vs. how much relies on ad-hoc "kindness of strangers" e.g. RFC 3068 which we know is less reliable. b) If certain transition mechanisms happen to be very effective/useful at getting people onto IPv6 (or not), which ones are those? Of course, some of these things are easier to measure than others. Then again, others really are interested in whether the traffic is "native", since perhaps they care about applications (media streaming?) that are significantly impacted by tunneling. Keith _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf