[  518.891113] bond0: (slave eth0): making interface the new active one
[  518.891187] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.089431] bond0: (slave eth0): Releasing backup interface
[  523.158388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.317358] bond0: (slave eth0): Releasing backup interface
[  527.344270] bond0 (unregistering): Released all slaves