[  519.308575] bond0: (slave eth0): making interface the new active one
[  519.308647] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.545967] bond0: (slave eth0): Releasing backup interface
[  523.657342] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.834935] bond0: (slave eth0): Releasing backup interface
[  527.875967] bond0 (unregistering): Released all slaves