interfaces.j2

auto lo
iface lo inet loopback

auto em1
iface em1 inet manual
    bond-master bond0
    bond-primary em1

auto em2
iface em2 inet manual
    bond-master bond0

auto bond0
iface bond0 inet static
    address {{ mgm_addr }}
    netmask {{ mgm_netmask }}
    network {{ mgm_network }}
    gateway {{ mgm_gw }}
    bond-mode 4
    bond-miimon 100
    bond-lacp-rate 1
    bond-slaves em1 em2
    bond-xmit_hash_policy layer3+4

auto em3
iface em3 inet manual
    bond-master bond1
    bond-primary em3

auto em4
iface em4 inet manual
    bond-master bond1

auto bond1
iface bond1 inet static
    address {{ cluster_addr }}
    netmask {{ cluster_netmask }}
    network {{ cluster_network }}
    bond-mode 4
    bond-miimon 100
    bond-lacp-rate 1
    bond-slaves em3 em4
    bond-xmit_hash_policy layer3+4

auto {{ cap_name }}
iface {{ cap_name }} inet manual
  up ip link set $IFACE promisc on arp off up
  down ip link set $IFACE promisc off down
  post-up ethtool -G $IFACE rx 32768; for i in rx tx autoneg tso ufo gso gro lro tx­nocache­copy rxhash; do ethtool -K $IFACE $i off; done
  post-up echo 1 > /proc/sys/net/ipv6/conf/$IFACE/disable_ipv6
  post-up ifconfig $IFACE mtu 9000