[  519.037034] bond0: (slave eth0): making interface the new active one
[  519.037100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.206924] bond0: (slave eth0): Releasing backup interface
[  523.270227] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.431880] bond0: (slave eth0): Releasing backup interface
[  527.463871] bond0 (unregistering): Released all slaves