[130655] in North American Network Operators' Group
RE: reachability problems Europe->US?
daemon@ATHENA.MIT.EDU (John van Oppen)
Thu Oct 7 11:59:28 2010
From: John van Oppen <jvanoppen@spectrumnet.us>
To: 'Thomas Schmid' <schmid@dfn.de>, Heath Jones <hj1980@gmail.com>
Date: Thu, 7 Oct 2010 15:59:12 +0000
In-Reply-To: <4CADC696.9020009@dfn.de>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Global crossing is having major issues (since yesterday actually) in Seattl=
e. Every path I see to dfn.de is via gblx and Microsoft hosts most of th=
ose sites out of the seattle area so they may be seeing the same issue.
Based on what we can see gblx has a broken port-channel or something simila=
r here as random traffic (into) their network via our transit link gets bla=
ck-holed. We could not even reach global crossing's own name servers for =
a while. We gave up and turned down BGP yesterday until we hear from the=
m. Based on graphs at the time things broke they appeared to be black-hol=
ing roughly 1/4 of what we were sending them.
Thanks,
John van Oppen
Spectrum Networks / AS 11404
-----Original Message-----
From: Thomas Schmid [mailto:schmid@dfn.de]=20
Sent: Thursday, October 07, 2010 6:10 AM
To: Heath Jones
Cc: nanog@nanog.org
Subject: Re: reachability problems Europe->US?
Hi,
On 07.10.2010 14:35, Heath Jones wrote:
>> Seems to be only source-prefix-based, but several ISPs in europe are aff=
ected.
> Can you post source and destination IP's ?
source: 131.220.0.0/16, 212.201.68.0/22, 212.201.72.0/21,
destination: 65.122.178.73, 63.228.223.104
traceroute to 65.122.178.73 (65.122.178.73), 30 hops max, 40 byte packets
1 er-rz-gig-3-3.stw-bonn.de (131.220.99.62) 1.792 ms 1.275 ms 1.125 m=
s
2 xr-bon1-te2-3.x-win.dfn.de (188.1.233.193) 0.705 ms 2.132 ms 0.755 =
ms
3 xr-bir1-te2-3.x-win.dfn.de (188.1.144.9) 1.477 ms 1.936 ms 1.051 ms
4 zr-fra1-te0-7-0-5.x-win.dfn.de (188.1.145.46) 4.034 ms 3.734 ms 4.9=
57 ms
5 64.213.78.237 (64.213.78.237) 3.866 ms 3.295 ms 26.854 ms
6 jfk-brdr-04.inet.qwest.net (63.146.26.225) 119.511 ms 92.735 ms 99.=
019 ms
7 * * *
or quote from DE-CIX tech-list:
[www.microsoft.com]
-----------
We also have some connectivity problems to ms, changing the bgp routing to
another tier 1 carrier don t resolve the problem
-----------
Cheers,
Thomas
