[  516.573086] bond0: (slave eth0): making interface the new active one
[  516.573188] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.775652] bond0: (slave eth0): Releasing backup interface
[  520.844516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.002189] bond0: (slave eth0): Releasing backup interface
[  525.037191] bond0 (unregistering): Released all slaves