[12] in North American Network Operators' Group
Mae-East instability
daemon@ATHENA.MIT.EDU (Curtis Villamizar)
Thu Jul 20 14:33:18 1995
To: nanog@merit.edu
cc: curtis@ans.net
Reply-To: curtis@ans.net
Date: Thu, 20 Jul 1995 14:26:48 -0400
From: Curtis Villamizar <curtis@ans.net>
Some of our peers have been dropping BGP a bit more often lately.
Somebody had a real bad day on Tuesday.
Jul.18: 192.41.177.252 1:35:13 mae-east-rt2.es.net
Jul.18: 192.41.177.125 1:23:29 mae-east.nsn.nasa.gov
Jul.18: 192.41.177.251 0:59:05 mae-east-rt1.es.net
Jul.18: 192.41.177.241 0:08:56 sl-mae-e-F0/0.sprintlink.net
Here's a list giving the number of disconnects (where there were
5 or more disonnects per day). The majority of flapping seems to be
at Mae-East and Mae-West.
date peer hits
Jul 18 192.157.69.250 8 rs1.sprint.ra.net NY NAP
Jul 18 192.41.177.125 72 mae-east.nsn.nasa.gov MaeE
Jul 18 192.41.177.251 34 mae-east-rt1.es.net MaeE
Jul 18 192.41.177.252 56 mae-east-rt2.es.net MaeE
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?
Curtis