[  516.121312] bond0: (slave eth0): making interface the new active one
[  516.121396] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.349823] bond0: (slave eth0): Releasing backup interface
[  520.466350] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.639013] bond0: (slave eth0): Releasing backup interface
[  524.662990] bond0 (unregistering): Released all slaves