[129235] in North American Network Operators' Group
Re: Did your BGP crash today?
daemon@ATHENA.MIT.EDU (Mike Tancsa)
Mon Aug 30 13:29:47 2010
Date: Mon, 30 Aug 2010 13:28:26 -0400
To: "Kevin Oberman" <oberman@es.net>, Jack Bates <jbates@brightok.net>
From: Mike Tancsa <mike@sentex.net>
In-Reply-To: <20100830164010.431A61CC3A@ptavv.es.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
At 12:40 PM 8/30/2010, Kevin Oberman wrote:
>This only way they could have caught this one was to have tested to a
>CRS which had another router to which it was announcing the attribute in
>a mal-formed packet. Worse, the resets should just keep happening as the
>CRS would still have the route with the unknown attribute which would
>just generate another malformed update to cause the session to reset
>again.
>
>While it may be possible to recover from something like this, it sure
>would not be easy.
We experienced something like this a year ago on a couple of quagga
boxes. At least we had source code to go through and resources to
make use of that source code to find the problem and implement a
quick work around. Its for situations like this, debugging logging
is ooooohhh so important.
What did people do in this case to identify the issue ? Did you just
pass it off to your vendor ? or did anyone try to diagnose it locally
? If so, what did you do ?
---Mike
>--
>R. Kevin Oberman, Network Engineer
>Energy Sciences Network (ESnet)
>Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
>E-mail: oberman@es.net Phone: +1 510 486-8634
>Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
