[  520.517140] bond0: (slave eth0): making interface the new active one
[  520.517216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.766889] bond0: (slave eth0): Releasing backup interface
[  524.895292] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.109997] bond0: (slave eth0): Releasing backup interface
[  529.134963] bond0 (unregistering): Released all slaves