[  518.981055] bond0: (slave eth0): making interface the new active one
[  518.981154] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.144959] bond0: (slave eth0): Releasing backup interface
[  523.214497] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.370182] bond0: (slave eth0): Releasing backup interface
[  527.394695] bond0 (unregistering): Released all slaves