[  513.335457] bond0: (slave eth0): making interface the new active one
[  513.335536] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.560300] bond0: (slave eth0): Releasing backup interface
[  517.675380] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.909070] bond0: (slave eth0): Releasing backup interface
[  521.940062] bond0 (unregistering): Released all slaves