[  520.450509] bond0: (slave eth0): making interface the new active one
[  520.450598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.701085] bond0: (slave eth0): Releasing backup interface
[  524.797582] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.983181] bond0: (slave eth0): Releasing backup interface
[  529.007190] bond0 (unregistering): Released all slaves