[  518.789475] bond0: (slave eth0): making interface the new active one
[  518.789559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.040451] bond0: (slave eth0): Releasing backup interface
[  523.163005] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.387142] bond0: (slave eth0): Releasing backup interface
[  527.420060] bond0 (unregistering): Released all slaves