reachability problems Europe->US?
hj1980 at gmail.com
Thu Oct 7 11:24:25 CDT 2010
It seemed from the symptoms OP was seeing, that Qwest was the issue.
Has GLBX reported to you that they are having a fault? If not, perhaps
try tagging your exported routes to GLBX with 8010 as per this:
On 7 October 2010 16:59, John van Oppen <jvanoppen at spectrumnet.us> wrote:
> Global crossing is having major issues (since yesterday actually) in Seattle. Every path I see to dfn.de is via gblx and Microsoft hosts most of those 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 similar here as random traffic (into) their network via our transit link gets black-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 them. Based on graphs at the time things broke they appeared to be black-holing roughly 1/4 of what we were sending them.
> John van Oppen
> Spectrum Networks / AS 11404
> -----Original Message-----
> From: Thomas Schmid [mailto:schmid at dfn.de]
> Sent: Thursday, October 07, 2010 6:10 AM
> To: Heath Jones
> Cc: nanog at nanog.org
> Subject: Re: reachability problems Europe->US?
> On 07.10.2010 14:35, Heath Jones wrote:
>>> Seems to be only source-prefix-based, but several ISPs in europe are affected.
>> Can you post source and destination IP's ?
> source: 188.8.131.52/16, 184.108.40.206/22, 220.127.116.11/21,
> destination: 18.104.22.168, 22.214.171.124
> traceroute to 126.96.36.199 (188.8.131.52), 30 hops max, 40 byte packets
> 1 er-rz-gig-3-3.stw-bonn.de (184.108.40.206) 1.792 ms 1.275 ms 1.125 ms
> 2 xr-bon1-te2-3.x-win.dfn.de (220.127.116.11) 0.705 ms 2.132 ms 0.755 ms
> 3 xr-bir1-te2-3.x-win.dfn.de (18.104.22.168) 1.477 ms 1.936 ms 1.051 ms
> 4 zr-fra1-te0-7-0-5.x-win.dfn.de (22.214.171.124) 4.034 ms 3.734 ms 4.957 ms
> 5 126.96.36.199 (188.8.131.52) 3.866 ms 3.295 ms 26.854 ms
> 6 jfk-brdr-04.inet.qwest.net (184.108.40.206) 119.511 ms 92.735 ms 99.019 ms
> 7 * * *
> or quote from DE-CIX tech-list:
> We also have some connectivity problems to ms, changing the bgp routing to
> another tier 1 carrier don t resolve the problem
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