[  512.093016] bond0: (slave eth0): making interface the new active one
[  512.093143] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.243516] bond0: (slave eth0): Releasing backup interface
[  516.325349] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.465431] bond0: (slave eth0): Releasing backup interface
[  520.493331] bond0 (unregistering): Released all slaves