On Thu, Jan 21, 2016 at 08:23:09AM +0900, Randy Bush wrote: > > We could assert that the TTL is an indication of distance traveled. > > you might hypothesize it. but the wide variance in per-hop rtt would > seem to belie that. > > > Maybe one should record the TTL and Address Family of all packets > > received from the internet ('inbound') at the next NANOG or IETF? > > we have large bodies of traceroute and ping results in various stores, > mlab, atlas, mawi, ... it is the analysis to test your original > hypothesis which baffles me.
I'm not sure if milions traceroutes to all kinds of places are a good dataset to begin with. I'd try to look at natural / organic traffic, such as can be caught at a dual-stacked CPE or webserver. The majority of the traffic my employer carriers is not traceroute packets but other stuff. When will you have the paper ready for publishing? :)