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IPv6 traffic percentages?



> On Jan 20, 2016, at 06:45 , Jared Mauch <jared at puck.nether.net> wrote:
> 
>> 
>> On Jan 20, 2016, at 9:31 AM, Job Snijders <job at 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