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