[  518.614885] bond0: (slave eth0): making interface the new active one
[  518.614976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.770056] bond0: (slave eth0): Releasing backup interface
[  522.846547] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.998466] bond0: (slave eth0): Releasing backup interface
[  527.029350] bond0 (unregistering): Released all slaves