[  520.903590] bond0: (slave eth0): making interface the new active one
[  520.903670] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.068637] bond0: (slave eth0): Releasing backup interface
[  525.143888] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.292184] bond0: (slave eth0): Releasing backup interface
[  529.314123] bond0 (unregistering): Released all slaves