[187129] in North American Network Operators' Group
Re: IPv6 traffic percentages?
daemon@ATHENA.MIT.EDU (Owen DeLong)
Wed Jan 20 13:48:33 2016
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <300B5B06-C099-4515-8648-A30F1DF79759@puck.nether.net>
Date: Wed, 20 Jan 2016 10:44:27 -0800
To: Jared Mauch <jared@puck.nether.net>
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
> On Jan 20, 2016, at 06:45 , Jared Mauch <jared@puck.nether.net> wrote:
>=20
>>=20
>> On Jan 20, 2016, at 9:31 AM, Job Snijders <job@instituut.net> wrote:
>>=20
>> 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.
>>>=20
>>> that is a hypothesis not an axiom [...]
>>=20
>> Thanks.
>>=20
>>> but an interesting hypothesis. how do you propose to test it?
>>=20
>> We could assert that the TTL is an indication of distance traveled.
>>=20
>> Maybe one should record the TTL and Address Family of all packets
>> received from the internet ('inbound') at the next NANOG or IETF?
>=20
> One could likely just watch the traffic from CPE at a home of any
> DS user and track the TTLs there.
>=20
> 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=E2=80=99s 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
