gistfile1.txt

auto lo
iface lo inet loopback

auto eth2
iface eth2 inet manual

# Container management VLAN interface
auto eth2.41
iface eth2.41 inet manual
  vlan-raw-device eth2

# OpenStack Networking VXLAN (tunnel/overlay) VLAN interface
auto eth2.42
iface eth2.42 inet manual
  vlan-raw-device eth2

# Storage network VLAN interface (optional)
auto eth2.43
iface eth2.43 inet manual
  vlan-raw-device eth2

# Br-Ex network vlan
auto eth2.44
iface eth2.44 inet manual
  vlan-raw-device eth2

# Container management bridge
auto br-mgmt
iface br-mgmt inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references tagged interface
    bridge_ports eth2.41
    address 172.29.236.10
    netmask 255.255.252.0
    dns-nameservers 8.8.8.8

# OpenStack Networking VXLAN (tunnel/overlay) bridge
auto br-vxlan
iface br-vxlan inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references tagged interface
    bridge_ports eth2.42
    address 172.29.240.10
    netmask 255.255.252.0

# OpenStack Networking VLAN bridge
auto br-vlan
iface br-vlan inet manual
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port references untagged interface
    bridge_ports eth2

# Storage bridge (optional)
auto br-storage
iface br-storage inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port reference tagged interface
    bridge_ports eth2.43
    address 172.29.244.10
    netmask 255.255.252.0

auto br-ex
iface br-ex inet static
    bridge_stp off
    bridge_waitport 0
    bridge_fd 0
    # Bridge port reference tagged interface
    bridge_ports eth2.44
    address 10.118.120.50
    netmask 255.255.240.0

source /etc/network/interfaces.d/*.cfg