auto bond0
iface bond0 inet static
address x.x.x.108
netmask 255.255.255.100
gateway x.x.x.1
dns-nameservers 8.8.8.8 4.2.2.2
slaves eno1 eno2
bond-mode active-backup
bond-miimon 100
bond-primary eno1

auto br0
iface br0 inet static
  address x.x.x.108
  netmask 255.255.255.100
  gateway x.x.x.1
  bridge_ports bond_lan
  bridge_stp on
  bridge_fd 0
  bridge_maxwait 0

auto bond0
iface bond0 inet static
  address x.x.x.108
  netmask 255.255.255.100

auto bond0
iface bond0 inet static
  address x.x.x.110
  netmask 255.255.255.100

bridge_ports bond_lan