[  748.285860] 8021q: adding VLAN 0 to HW filter on device bond0
[  748.289273] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  748.292602] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  748.295746] br0: port 1(veth0) entered blocking state
[  748.295790] br0: port 1(veth0) entered disabled state
[  748.295821] veth0: entered allmulticast mode
[  748.295879] veth0: entered promiscuous mode
[  748.299405] br0: port 2(veth1) entered blocking state
[  748.299440] br0: port 2(veth1) entered disabled state
[  748.299475] veth1: entered allmulticast mode
[  748.299524] veth1: entered promiscuous mode
[  749.306999] br0: port 1(veth0) entered blocking state
[  749.307062] br0: port 1(veth0) entered forwarding state
[  749.307116] br0: port 2(veth1) entered blocking state
[  749.307147] br0: port 2(veth1) entered forwarding state
[  750.331982] bond0: (slave veth0): link status definitely up
[  750.332111] bond0: (slave veth1): link status definitely up
[  750.332244] bond0: (slave veth0): making interface the new active one
[  750.332382] bond0: active interface up!
[  750.339568] veth1: left allmulticast mode
[  750.339640] veth1: left promiscuous mode
[  750.339718] br0: port 2(veth1) entered disabled state
[  750.339828] veth0: left allmulticast mode
[  750.339892] veth0: left promiscuous mode
[  750.339958] br0: port 1(veth0) entered disabled state
[  750.357122] bond0: (slave veth1): Releasing backup interface
[  750.364102] bond0: (slave veth0): Releasing backup interface
[  750.386056] bond0 (unregistering): Released all slaves