[  517.177980] bond0: (slave eth0): making interface the new active one
[  517.178083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.363191] bond0: (slave eth0): Releasing backup interface
[  521.438489] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.590882] bond0: (slave eth0): Releasing backup interface
[  525.619661] bond0 (unregistering): Released all slaves