Load Balancing CARP: ifconfig

$ ifconfig carp
carp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 01:00:5e:00:01:05
        priority: 0
        carp: carpdev vr0 advbase 1 balancing ip
                state MASTER vhid 5 advskew 0
                state BACKUP vhid 6 advskew 100
        groups: carp
        inet 192.0.2.19 netmask 0xffffff00 broadcast 192.0.2.255
        inet6 fe80::200:24ff:fecb:1c10%carp0 prefixlen 64 scopeid 0x7
carp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 01:00:5e:00:01:03
        priority: 0
        carp: carpdev vr1 advbase 1 balancing ip
                state MASTER vhid 3 advskew 0
                state BACKUP vhid 4 advskew 100
        groups: carp
        inet 192.168.12.1 netmask 0xffffff00 broadcast 192.168.12.255
        inet6 fe80::200:24ff:fecb:1c10%carp1 prefixlen 64 scopeid 0x8
pfsync0: flags=41<UP,RUNNING> mtu 1500
        priority: 0
        pfsync: syncdev: vr2 syncpeer: 10.0.12.17 maxupd: 128 defer: off
        groups: carp pfsync