[  519.006567] bond0: (slave eth0): making interface the new active one
[  519.006647] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.215556] bond0: (slave eth0): Releasing backup interface
[  523.294135] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.444638] bond0: (slave eth0): Releasing backup interface
[  527.476735] bond0 (unregistering): Released all slaves