[  520.008341] bond0: (slave eth0): making interface the new active one
[  520.008415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.239813] bond0: (slave eth0): Releasing backup interface
[  524.342873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.525980] bond0: (slave eth0): Releasing backup interface
[  528.563949] bond0 (unregistering): Released all slaves