[  517.660937] bond0: (slave eth0): making interface the new active one
[  517.661003] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.803654] bond0: (slave eth0): Releasing backup interface
[  521.886086] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.027953] bond0: (slave eth0): Releasing backup interface
[  526.053887] bond0 (unregistering): Released all slaves