[  518.978422] bond0: (slave eth0): making interface the new active one
[  518.978531] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.198099] bond0: (slave eth0): Releasing backup interface
[  523.316301] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.547877] bond0: (slave eth0): Releasing backup interface
[  527.573784] bond0 (unregistering): Released all slaves