[  519.276593] bond0: (slave eth0): making interface the new active one
[  519.276691] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.487458] bond0: (slave eth0): Releasing backup interface
[  523.588165] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.773409] bond0: (slave eth0): Releasing backup interface
[  527.802294] bond0 (unregistering): Released all slaves