On 17 August 2015 at 18:32, Freddie Cash <fjwc...@gmail.com> wrote: > > On Aug 17, 2015 9:22 AM, "Damien Fleuriot" <m...@my.gd> wrote: > > > > Hello list, > > > > > > > > I'm seeing this very peculiar behaviour between 2 10-STABLE boxes. > > > > Host A is CARP Master with advskew 20 and runs 10.2-BETA1 from 10/07 > > Host B is CARP Backup with advskew 150 and runs 10.2-PRERELEASE from > 12/08 > > > > > > When I configure CARP in rc.conf on host B, it becomes Master on boot, > and > > host A remains Master as well. > > When I force a state change on host B (ifconfig vlanx vhid y state > backup), > > it transitions to Backup then again to Master. > > > > When I comment out the CARP configuration in rc.conf , and configure CARP > > manually on host B's interfaces after it boots, it correctly becomes and > > remains Backup. > > > > > > > > Below is the excerpt from rc.conf pertaining to CARP configuration, the > > only difference between the 2 hosts being their advskew. > > > > Host A > > == BEGIN > > > > ifconfig_vlan410_alias0="vhid 110 pass passhere advskew 20 alias > > 10.104.10.251/32" > > > > == END > > > > Host B > > == BEGIN > > > > ifconfig_vlan410_alias0="vhid 110 pass passhere advskew 150 alias > > 10.104.10.251/32" > > > > == END > > Put the IP first, and the vhid stuff last in rc.conf for things to work > the most reliably. And drop the extra alias. > > ifconfig_vlan410_alias0="inet 10.104.10.251/32 vhid 110 pass passhere > advskew 150" > > CARP requires that all IPs on an interface that are part of the same vhid > to be listed (added) in the exact same order for the vhid to be considered > "the same". That one trips me up all the time when manually adding an IP to > a CARP pair, and then later rebooting one box as they both think they're > master for that interface, while being a mix of master/backup for the other > interfaces. > > Cheers, > Freddie > (running CARP on 2 10-CURRENT boxes and 2 10.1-p13 boxes) >
Cheers Freddie, will try and keep the thread up to date on the results. _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
