[188314] in North American Network Operators' Group
Re: Cogent - Google - HE Fun
daemon@ATHENA.MIT.EDU (Matthew D. Hardeman)
Mon Mar 14 22:40:07 2016
X-Original-To: nanog@nanog.org
From: "Matthew D. Hardeman" <mhardeman@ipifony.com>
In-Reply-To: <B542CC3757123745918E6B7E4D2EEE93D846C9@zeus.lti.local>
Date: Mon, 14 Mar 2016 21:40:02 -0500
To: Dennis Burgess <dmburgess@linktechs.net>
Cc: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
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It looks like Google is experimenting with a change in course on this =
issue.
Here=E2=80=99s a look at the IPv6 routing table tonight on my router =
bordering Cogent.
*>i 2607:f8b0:4013::/48
2620:121:a000:f0::2(fe80::618:d6ff:fef1:c540)
0 150 0 =
15169 i
* 2001:550:2:22::1d:1(fe80::12f3:11ff:fe29:2c24)
0 90 0 =
174 6461 15169 i
*>i 2607:f8b0:4014::/48
2620:121:a000:f0::2(fe80::618:d6ff:fef1:c540)
0 110 0 =
6939 6461 15169 i
* 2001:550:2:22::1d:1(fe80::12f3:11ff:fe29:2c24)
0 90 0 =
174 6461 15169 i
*>i 2607:f8b0:4016::/48
2620:121:a000:f0::2(fe80::618:d6ff:fef1:c540)
0 150 0 =
15169 i
* 2001:550:2:22::1d:1(fe80::12f3:11ff:fe29:2c24)
0 90 0 =
174 6461 15169 i
This is only 3 IPv6 prefixes (out of 47 prefixes seen in my IPv6 routing =
table). Two of these prefixes I see via direct peering with Google and, =
alternatively, via Cogent through Zayo transit. One of these prefixes =
doesn=E2=80=99t advertise in Google=E2=80=99s direct peering session (at =
least not in mine, but HE picks it up via Zayo and Cogent picks it up =
via Zayo).
All of these are /48 subnets of their greater 2620:f8b0::/32 prefix, =
which does show up in both their direct session and in HE via Zayo.
> On Mar 13, 2016, at 9:31 AM, Dennis Burgess <dmburgess@linktechs.net> =
wrote:
>=20
> In the end, google has made a choice. I think these kinds of choices =
will delay IPv6 adoption. =20
>=20
> -----Original Message-----
> From: Damien Burke [mailto:damien@supremebytes.com]=20
> Sent: Friday, March 11, 2016 2:51 PM
> To: Mark Tinka <mark.tinka@seacom.mu>; Owen DeLong <owen@delong.com>; =
Dennis Burgess <dmburgess@linktechs.net>
> Cc: North American Network Operators' Group <nanog@nanog.org>
> Subject: RE: Cogent - Google - HE Fun
>=20
> Just received an updated statement from cogent support:
>=20
> "We appreciate your concerns. This is a known issue that originates =
with Google as it is up to their discretion as to how they announce =
routes to us v4 or v6.=20
>=20
> Once again, apologies for any inconvenience."
>=20
> And:
>=20
> "The SLA does not cover route transit beyond our network. We cannot =
route to IPs that are not announced to us by the IP owner, directly or =
through a network peer."
>=20
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