[  519.018357] bond0: (slave eth0): making interface the new active one
[  519.018443] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.222960] bond0: (slave eth0): Releasing backup interface
[  523.305756] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.447438] bond0: (slave eth0): Releasing backup interface
[  527.489390] bond0 (unregistering): Released all slaves