[  519.231415] bond0: (slave eth0): making interface the new active one
[  519.231528] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.400924] bond0: (slave eth0): Releasing backup interface
[  523.459935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.626195] bond0: (slave eth0): Releasing backup interface
[  527.646191] bond0 (unregistering): Released all slaves