[13] in North American Network Operators' Group
Re: Mae-East instability
daemon@ATHENA.MIT.EDU (Kevin Oberman)
Thu Jul 20 17:07:36 1995
To: curtis@ans.net
Cc: nanog@merit.edu, oberman@nersc.gov
In-Reply-To: Your message of "Thu, 20 Jul 95 14:26:48 EDT."
<199507201826.OAA09636@brookfield.ans.net>
Date: Thu, 20 Jul 95 14:03:11 -0700
From: "Kevin Oberman" <oberman@nersc.gov>
> Date: Thu, 20 Jul 1995 14:26:48 -0400
> From: Curtis Villamizar <curtis@ans.net>
>
> The July 18 problem was mostly concentrated over one 3.5 hour period
> of continuous flap.
>
> Jul 18 07:19:28 to Jul 18 10:52:30 (122:47 / 213:02)
> 192.41.177.125 took 50 hits (57:00)
> 192.41.177.252 took 41 hits (62:31)
> 192.41.177.251 took 17 hits (34:19)
>
> Any clues from NASA and ESNET as to why this instability occurred at
> Mae-east? Was this some form of BGP meltdown or just hardware trouble
> at or getting to the Mae?
On the morning of July 18 there was a hardware failure at MAE-East
that kept breaking off the BGP sessions every 2-5 minutes. This took
place from about 4:00 until about 8:30 am. The report we recieved back
from SURAnet was that MFS ended up simply power cycling the Netedge
boxes.
Sessions with all peers except ICM and one of the PSI routers were
bouncing.
R. Kevin Oberman
Energy Sciences Network (ESnet)
National Energy Research Supercomputer Center (NERSC)
Lawrence Livermore National Laboratory (LLNL)
EMAIL: koberman@llnl.gov Phone: +1 510 422-6955
