[  514.893623] bond0: (slave eth0): making interface the new active one
[  514.893733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.051771] bond0: (slave eth0): Releasing backup interface
[  519.116023] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.274150] bond0: (slave eth0): Releasing backup interface
[  523.312122] bond0 (unregistering): Released all slaves