On Tue, Apr 2, 2013 at 3:37 PM, Freddie Cash <fjwc...@gmail.com> wrote: > On 2013-04-02 1:52 AM, "Gleb Smirnoff" <gleb...@freebsd.org> wrote: >> >> Freddie, >> >> On Wed, Mar 27, 2013 at 04:10:03PM -0700, Freddie Cash wrote: >> F> Just curious if anyone has any scripts for managing fail-over of > multiple >> F> interfaces using the new CARP setup in 10-CURRENT. >> F> >> F> Fail-over of all CARP vhids associated with a single interface is > working >> F> correctly. But, I have 2 separate, physical interfaces running with > CARP, >> F> and want to fail-over everything if one of the links (or boxes) goes > down. >> F> >> F> Figured I'd ask around to see if anyone has done something like this >> F> already. I've been playing with devd.conf settings and logging > events, but >> F> don't have anything written up to do the actual switch yet. >> >> Same as for old CARP, you can achieve behavior when a box with lower >> advskew yields master status to a second one, setting: >> >> sysctl net.inet.carp.preempt=1 >> >> If an interface on the master has proper link state notification to the >> kernel, then once the interface goes down, the advskew on the box will be >> demoted and backup box will preempt it. > > That's how I have things set and it wasn't switching the 2nd interface. > > However, I think that may be due to the IPFW rules on one interface > blocking CARP multicast packets on that interface, while they were going > through correctly on the 2nd interface. I'll see if I can schedule a manual > test later this week now that IPFW is configured correctly. > > Thanks for the confirmation of things are supposed to work.
We use new-carp on 10.x on the freebsd.org cluster. There's machines with 10+ vlans with carp on each and pf. I find some of the replacement tools a little lacking but one thing I've done is use a dummy vlan to cause an entire machine to demote itself based on bgp default-route state. I wrote a script to do this before I became aware of ifstated(8). This is necessary for us more because of the unusual uplink arrangement we have at one of the cluster locations. -- Peter Wemm - pe...@wemm.org; pe...@freebsd.org; pe...@yahoo-inc.com; KI6FJV bitcoin:188ZjyYLFJiEheQZw4UtU27e2FMLmuRBUE _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"