[  510.999475] bond0: (slave eth0): making interface the new active one
[  510.999557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.229151] bond0: (slave eth0): Releasing backup interface
[  515.348131] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.506967] bond0: (slave eth0): Releasing backup interface
[  519.533910] bond0 (unregistering): Released all slaves