[63160] in North American Network Operators' Group
Re: what happened to ARIN tonight ?
daemon@ATHENA.MIT.EDU (Daniel Karrenberg)
Mon Sep 29 09:08:50 2003
Date: Mon, 29 Sep 2003 15:08:18 +0200
From: Daniel Karrenberg <daniel.karrenberg@ripe.net>
To: James Cowie <cowie@renesys.com>
Cc: Robert Boyle <robert@tellurian.com>, Haesu <haesu@towardex.com>,
nanog@merit.edu
Mail-Followup-To: James Cowie <cowie@renesys.com>,
Robert Boyle <robert@tellurian.com>, Haesu <haesu@towardex.com>,
nanog@merit.edu
In-Reply-To: <20030929102715.P22625@buda.renesys.com>
Errors-To: owner-nanog-outgoing@merit.edu
On 29.09 10:27, James Cowie wrote:
>
> Single-homed /24 through UUNet's 7046 to 701. Withdrawals started at 01:21:38 GMT
> (21:21:38 Eastern time), and ARIN flapped severely for about fifteen minutes.
>
> Then they spent another hour and ten minutes inconsistently reachable from half the
> world, with the picture mutating slowly. 701 seems to have been telling inconsistent
> stories about ARIN's reachability, depending on which of our peers you consulted --
> IGP instability? By 03:10 GMT everyone seems to have slowly gotten a
> consistent picture again, with ARIN restored.
The RIPE NCC Routing Information System saw a very similar picture:
Flapping from 01:20:50Z - 01:38:22Z, consolidation 01:59:46Z - 02:28:20Z.
For details see:
http://www.ris.ripe.net/cgi-bin/risprefix.cgi?net=192.149.252.16%2F32&preftype=lspec&action=Search&startDay=20030929&startHour=00&startMin=00&startSec=00&endDay=20030929&endHour=06&endMin=00&endSec=00&rrcb=all&peer=all&type=%25&sortby=stime&outype=html&.cgifields=type
http://www.ris.ripe.net/cgi-bin/risprefix.cgi
is quite useful in answering questions like this,
i.e. "What happened to prefix x.y.z/a between times t and u?"
It is near real time with a lag of typically 5 minutes.
Daniel
~
