[  752.476874] 8021q: adding VLAN 0 to HW filter on device bond0
[  752.480009] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  752.483206] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  752.486202] br0: port 1(veth0) entered blocking state
[  752.486246] br0: port 1(veth0) entered disabled state
[  752.486286] veth0: entered allmulticast mode
[  752.486344] veth0: entered promiscuous mode
[  752.489225] br0: port 2(veth1) entered blocking state
[  752.489298] br0: port 2(veth1) entered disabled state
[  752.489368] veth1: entered allmulticast mode
[  752.489457] veth1: entered promiscuous mode
[  752.606886] br0: port 1(veth0) entered blocking state
[  752.606985] br0: port 1(veth0) entered forwarding state
[  752.607092] br0: port 2(veth1) entered blocking state
[  752.607185] br0: port 2(veth1) entered forwarding state
[  754.542899] bond0: (slave veth1): link status definitely up
[  754.542962] bond0: (slave veth1): making interface the new active one
[  754.543025] bond0: active interface up!
[  754.609388] veth1: left allmulticast mode
[  754.609423] veth1: left promiscuous mode
[  754.609458] br0: port 2(veth1) entered disabled state
[  754.609652] veth0: left allmulticast mode
[  754.609679] veth0: left promiscuous mode
[  754.609709] br0: port 1(veth0) entered disabled state
[  754.631051] bond0: (slave veth1): Releasing backup interface
[  754.638951] bond0: (slave veth0): Releasing backup interface