On Fri, Apr 15, 2011 at 4:14 PM, Vinicius Coque <vco...@gmail.com> wrote:
>>
>> What does the CARP status show, and what do the logs show for CARP?
>>
>
>
> CARP Status
> pfSense master:
>
>  vip1 172.16.0.39  MASTER
>
> pfSense backup:
>
>  vip1 172.16.0.39  BACKUP
>
>
> System logs:
>
> pfSense master:
>
> Apr 15 17:08:08 utm-teste1 syslogd: kernel boot file is /boot/kernel/kernel
> Apr 15 20:08:32 utm-teste1 check_reload_status: syncing firewall
> Apr 15 17:08:32 utm-teste1 php: : Beginning XMLRPC sync to
> https://10.10.0.2:5081.
> Apr 15 17:08:33 utm-teste1 php: : XMLRPC sync successfully completed
> with https://10.10.0.2:5081.
> Apr 15 17:08:33 utm-teste1 php: : Beginning XMLRPC sync to
> https://10.10.0.2:5081.
> Apr 15 17:08:33 utm-teste1 php: : XMLRPC sync successfully completed
> with https://10.10.0.2:5081.
> Apr 15 17:08:35 utm-teste1 php: : Filter sync successfully completed
> with https://10.10.0.2:5081.
>
> pfSense backup:
>
> Apr 15 17:08:12 utm-teste2 syslogd: kernel boot file is /boot/kernel/kernel
> Apr 15 17:08:32 utm-teste2 check_reload_status: syncing firewall
> Apr 15 17:08:32 utm-teste2 kernel: vip1: link state changed to DOWN
> Apr 15 17:08:32 utm-teste2 kernel: vip1: INIT -> MASTER (preempting)
> Apr 15 17:08:32 utm-teste2 kernel: vip1: link state changed to UP
> Apr 15 17:08:32 utm-teste2 kernel: vip1: MASTER -> BACKUP (more
> frequent advertisement received)

That looks like a consequence of:
http://redmine.pfsense.org/issues/1433

plus something on your switch(es). The MAC will move in the switch's
CAM table from the primary's port to the secondary's when the
secondary switches from master to backup even though it's for a
fraction of a second, but should immediately move back on the switch
when the master picks back up. There's something on the switch that
isn't behaving correctly for MACs that quickly change ports, which is
ultimately the actual problem, though that CARP switch shouldn't
happen during a config change which exacerbates the issue.

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