CARP not failing over all interfaces



  • Hi All,

    unfortunatelly i have a probelm with CARP failover configuration.

    Everything is setup like discribed in the how-to ans also works very well when i do a manual failover or a shutdown / reboot of the primary device.
    But when i pull a cable out of the primary box, the second box only fails over this interface and the others stay active on the other box.

    • For synchronizing i use a dedicated network port with crossover cable.
    • Port 1 is WAN
    • port 2 is LAN with VLAN tagged interfaces on it

    In the logs you can see that at first the device does a failover for all interfaces by adding an +240 for priority but then suddenly removes this added prioroty value and takes back the not failed interfaces.

    Here are the logs:

    Feb 3 09:34:16 	php-fpm 	353 	/rc.carpmaster: HA cluster member "(172.29.242.254@igb1.910): (VLAN910_ADMIN)" has resumed CARP state "MASTER" for vhid 2
    Feb 3 09:34:16 	php-fpm 	38807 	/rc.carpmaster: HA cluster member "(172.29.255.254@igb1): (LAN_VLAN1)" has resumed CARP state "MASTER" for vhid 1
    Feb 3 09:34:15 	check_reload_status 		Carp master event
    Feb 3 09:34:15 	check_reload_status 		Carp master event
    Feb 3 09:34:15 	kernel 		carp: 2@igb1.910: BACKUP -> MASTER (preempting a slower master)
    Feb 3 09:34:15 	kernel 		carp: 1@igb1: BACKUP -> MASTER (preempting a slower master)
    Feb 3 09:34:14 	kernel 		carp: demoted by -240 to 0 (vhid removed)
    Feb 3 09:34:13 	php-fpm 	353 	/rc.carpbackup: HA cluster member "(172.29.255.254@igb1): (LAN_VLAN1)" has resumed CARP state "BACKUP" for vhid 1
    Feb 3 09:34:13 	php-fpm 	38807 	/rc.carpbackup: HA cluster member "(172.29.242.254@igb1.910): (VLAN910_ADMIN)" has resumed CARP state "BACKUP" for vhid 2
    Feb 3 09:34:13 	php-fpm 	353 	/rc.carpbackup: HA cluster member "(192.168.188.254@igb0): (WAN)" has resumed CARP state "BACKUP" for vhid 3
    Feb 3 09:34:12 	check_reload_status 		Carp backup event
    Feb 3 09:34:12 	check_reload_status 		Carp backup event
    Feb 3 09:34:12 	check_reload_status 		Carp backup event
    Feb 3 09:34:12 	kernel 		carp: 1@igb1: MASTER -> BACKUP (more frequent advertisement received)
    Feb 3 09:34:12 	kernel 		carp: 2@igb1.910: MASTER -> BACKUP (more frequent advertisement received)
    Feb 3 09:34:12 	kernel 		carp: demoted by 240 to 240 (interface down)
    Feb 3 09:34:12 	kernel 		carp: 3@igb0: MASTER -> INIT (hardware interface down)
    

    I´ve also disabled IGMP Snooping on the LAN faced switch. The WAN-faced switch between PF and DSL-Modem is blackbox.

    Couldnt find anything related via search / google

    Any help here appreciated ☺


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