[  517.315165] bond0: (slave eth0): making interface the new active one
[  517.315266] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.487640] bond0: (slave eth0): Releasing backup interface
[  521.573413] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.710764] bond0: (slave eth0): Releasing backup interface
[  525.737688] bond0 (unregistering): Released all slaves