[  516.118435] bond0: (slave eth0): making interface the new active one
[  516.118557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.278726] bond0: (slave eth0): Releasing backup interface
[  520.357138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.501411] bond0: (slave eth0): Releasing backup interface
[  524.533342] bond0 (unregistering): Released all slaves