[  515.093188] bond0: (slave eth0): making interface the new active one
[  515.093313] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.247345] bond0: (slave eth0): Releasing backup interface
[  519.318267] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.473463] bond0: (slave eth0): Releasing backup interface
[  523.506394] bond0 (unregistering): Released all slaves