[  520.266260] bond0: (slave eth0): making interface the new active one
[  520.266359] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.427052] bond0: (slave eth0): Releasing backup interface
[  524.496074] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.655001] bond0: (slave eth0): Releasing backup interface
[  528.689971] bond0 (unregistering): Released all slaves