Re: IPv6 traffic percentages?

[Owen DeLong <owen () delong com>]

> On Jan 20, 2016, at 06:45 , Jared Mauch <jared () puck nether net> wrote:
>
> > On Jan 20, 2016, at 9:31 AM, Job Snijders <job () instituut net> wrote:
> >
> > On Wed, Jan 20, 2016 at 11:13:41PM +0900, Randy Bush wrote:
> > > > I propose the following axiom: the greater the distance over which a
> > > > packet is forwarded, the less likely it is to be an IPv6 packet.
> > >
> > > that is a hypothesis not an axiom [...]
> >
> > Thanks.
> >
> > > but an interesting hypothesis.  how do you propose to test it?
> >
> > We could assert that the TTL is an indication of distance traveled.
> >
> > Maybe one should record the TTL and Address Family of all packets
> > received from the internet ('inbound') at the next NANOG or IETF?
>
> One could likely just watch the traffic from CPE at a home of any
> DS user and track the TTLs there.
>
> The problem of course is networks that do not do TTL decrement, or
> are doing 6PE over an IPv4 only core.  It makes this a less scientific
> study IMHO.

I think that’s actually in the noise since we are using TTL as a proxy
for distance traveled. The networks you are describing are by and large
not international or even continental transit networks.

Owen