nanog mailing list archives

Re: what happened to ARIN tonight ?


From: Daniel Karrenberg <daniel.karrenberg () ripe net>
Date: Mon, 29 Sep 2003 15:08:18 +0200


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
~


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