gistfile1.txt

auto lo
 iface lo inet loopback
 #iface em1 inet manual
 #iface em2 inet manual
 auto br-ex
 allow-ovs br-ex
 iface br-ex inet static
   address 10.200.0.41
   netmask 255.255.252.0
   gateway 10.200.0.1
   dns-nameservers 10.0.5.220
   dns-nameservers 10.0.28.153
   dns-nameservers 10.100.1.53
   ovs_type OVSBridge
   ovs_ports bond0
   ovs_extra set bridge br-ex other-config:hwaddr=d0:43:1e:60:f3:43
 allow-br-ex bond0
 iface bond0 inet manual
   ovs_bridge br-ex
   ovs_type OVSBond
   ovs_bonds em1 em2
   pre-up ( ifconfig em1 mtu 8996 && ifconfig em2 mtu 8996 && ip link set addr d0:43:1e:60:f3:43 dev em2 )
   ovs_options lacp=passive
   mtu 8996
   pre-up modprobe bonding mode=4 miimon=200 xmit_hash_policy=1
   post-down modprobe -r bonding