Debian 7/8:
auto bond0
iface bond0 inet static
address 10.100.0.100/24
gateway 10.100.0.1
dns-nameservers 10.100.0.3 10.100.0.4
bond-mode 802.3ad
bond-lacp_rate 1
bond-slaves eth0 eth1 eth2 eth3
bond-xmit_hash_policy layer3+4
bond-miimon 100
bond-updelay 100
bond-downdelay 100
Ubuntu 14.04/16.04:
auto eth0
iface eth0 inet manual
bond-master bond0
auto eth1
iface eth0 inet manual
bond-master bond0
auto eth2
iface eth0 inet manual
bond-master bond0
auto eth3
iface eth0 inet manual
bond-master bond0
auto bond0
iface bond0 inet static
address 10.100.0.100/24
gateway 10.100.0.1
dns-nameservers 10.100.0.3 10.100.0.4
bond-mode 802.3ad
bond-lacp_rate 1
bond-slaves none
bond-xmit_hash_policy layer3+4
bond-miimon 100
bond-updelay 100
bond-downdelay 100