OpenBGPd stability issue on FreebBSD 9-PRERELEASE

Kevin Oberman kob6558 at
Sun Nov 27 18:24:52 UTC 2011

On Sun, Nov 27, 2011 at 7:10 AM, Darren Baginski <kickbsd at> wrote:
> Hi!
> I'm having issues with OpenBGPd  openbgpd-4.9.20110612_1 running on  FreebBSD 9-PRERELEASE.
> BGP sessions flap for no reason every ~4hours, bgp sessions itself receive only default form cisco router.
> FreeBSD 8.2 is not affected.
> How can I troubleshot this?

Start by looking at the logs on both ends. Why did the session get
torn down?  Which end triggered it? Without this information it is
impossible to figure much out.

If the logs don't provide a clue, you can capture the BGP traffic with
tcpdump and analyze with wireshark.
R. Kevin Oberman, Network Engineer
E-mail: kob6558 at

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