[  515.876590] bond0: (slave eth0): making interface the new active one
[  515.876686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.086467] bond0: (slave eth0): Releasing backup interface
[  520.156184] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.313582] bond0: (slave eth0): Releasing backup interface
[  524.347304] bond0 (unregistering): Released all slaves