cat /etc/network/interfaces
iface enp4s0f0 inet manual
iface enp4s0f1 inet manual
iface ens2f0 inet manual
iface ens2f1 inet manual
iface ens4f0 inet manual
iface ens4f1 inet manual

auto lo
iface lo inet loopback


#1GBit Management
auto bond0
iface bond0 inet manual
        bond-slaves enp4s0f0 enp4s0f1
        bond-primary enp4s0f0
        bond-mode active-backup
        bond-miimon 100
        bond-updelay 200
        bond-downdelay 200

#10GBit DRBD
auto bond2
iface bond2 inet manual
        bond-slaves  ens2f1 ens4f1
        bond-primary ens4f1
        bond-mode active-backup
        bond-miimon 100
        bond-updelay 200
        bond-downdelay 200

#10GBit VMs
auto bond1
iface bond1 inet manual
        bond-slaves ens2f0 ens4f0
        bond-primary ens2f0
        bond-mode active-backup
        bond-miimon 100
        bond-updelay 200
        bond-downdelay 200


#1GBit Management
auto mgt
iface mgt inet static
        address 10.93.1.97
        netmask 255.255.255.0
        gateway 10.93.1.254
        broadcast 10.93.1.255
        bridge_ports bond0
        bridge_stp off

#10Gbit DRBD
auto drbd
iface drbd inet static
        address 192.168.1.1
        netmask 255.255.255.0
        broadcast 192.168.1.255
        bridge_ports bond2
        bridge_stp off