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Re: carp fail over

Thanks again,

However, a quick test verifies that arpbalnce is not the culprit.

As for the MASTER/BACKUP labels.
If I just pull the plug it the MASTER stays MASTER and the BACKUP goes to 
It recovers when I put the cable back.
But only on the single carp interface.

If I do a
  # ifconfig carp2 down
The master goes to INIT and the BACKUP goes to MASTER.
And recovers with
  # ifconfig carp2 up
But only on the single carp interface.

This is on a 4.0 system.

Steve Pribyl
Senior Infrastructure Practitioner
Peel, Inc
990 Grove St. Suite 204
Evanston, IL 60201
Phone: 847-424-0954 ex 14
Cell: 847-343-2349
Fax: 847-424-0986

On 05/29/2008 02:40 PM, Manuel Bouyer wrote:
On Thu, May 29, 2008 at 02:10:10PM -0500, Steve Pribyl wrote:
Good Afternoon,

Thanks for the concise answer.

What have I missed then?
When I pull the plug on one nic and only one carp interface fails over.

If more info is required please just ask.
ips and passwords have been changed to protect the guilty

from /etc/pf.ctl
pass quick proto carp all keep state

#ifconcig sysctl -a | grep arp
net.inet.carp.preempt = 1
net.inet.carp.arpbalance = 1

I'm not sure net.inet.carp.arpbalance is compatible with preempt. I'm
not using net.inet.carp.arpbalance myself.

Do the output of ifconfig (MASTER vs BACKUP) change on both nodes
when you unplug one cable ?
In my case, the BACKUP becomes master, but I don't remember if
MASTER switch to BACKUP, or if it remains MASTER. It's OK for
MASTER to stay MASTER, because is then has a lower priority than
the other host.

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