[  752.403865] 8021q: adding VLAN 0 to HW filter on device bond0
[  752.406820] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  752.409739] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  752.412463] br0: port 1(veth0) entered blocking state
[  752.412497] br0: port 1(veth0) entered disabled state
[  752.412528] veth0: entered allmulticast mode
[  752.412581] veth0: entered promiscuous mode
[  752.415308] br0: port 2(veth1) entered blocking state
[  752.415342] br0: port 2(veth1) entered disabled state
[  752.415371] veth1: entered allmulticast mode
[  752.415428] veth1: entered promiscuous mode
[  752.743879] br0: port 1(veth0) entered blocking state
[  752.743931] br0: port 1(veth0) entered forwarding state
[  752.743984] br0: port 2(veth1) entered blocking state
[  752.744015] br0: port 2(veth1) entered forwarding state
[  754.487869] bond0: (slave veth1): link status definitely up
[  754.487972] bond0: (slave veth1): making interface the new active one
[  754.488040] bond0: active interface up!
[  754.525246] veth1: left allmulticast mode
[  754.525320] veth1: left promiscuous mode
[  754.525357] br0: port 2(veth1) entered disabled state
[  754.525438] veth0: left allmulticast mode
[  754.525497] veth0: left promiscuous mode
[  754.525533] br0: port 1(veth0) entered disabled state
[  754.541965] bond0: (slave veth1): Releasing backup interface
[  754.549923] bond0: (slave veth0): Releasing backup interface