[  748.532568] 8021q: adding VLAN 0 to HW filter on device bond0
[  748.535971] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  748.539258] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  748.542366] br0: port 1(veth0) entered blocking state
[  748.542410] br0: port 1(veth0) entered disabled state
[  748.542443] veth0: entered allmulticast mode
[  748.542498] veth0: entered promiscuous mode
[  748.545647] br0: port 2(veth1) entered blocking state
[  748.545679] br0: port 2(veth1) entered disabled state
[  748.545709] veth1: entered allmulticast mode
[  748.545772] veth1: entered promiscuous mode
[  748.733815] br0: port 1(veth0) entered blocking state
[  748.733858] br0: port 1(veth0) entered forwarding state
[  748.733909] br0: port 2(veth1) entered blocking state
[  748.733940] br0: port 2(veth1) entered forwarding state
[  750.589819] bond0: (slave veth1): link status definitely up
[  750.589935] bond0: (slave veth1): making interface the new active one
[  750.589991] bond0: active interface up!
[  750.686359] veth1: left allmulticast mode
[  750.686400] veth1: left promiscuous mode
[  750.686434] br0: port 2(veth1) entered disabled state
[  750.686512] veth0: left allmulticast mode
[  750.686536] veth0: left promiscuous mode
[  750.686560] br0: port 1(veth0) entered disabled state
[  750.700982] bond0: (slave veth1): Releasing backup interface
[  750.708912] bond0: (slave veth0): Releasing backup interface
[  750.743877] bond0 (unregistering): Released all slaves