[  512.350764] bond0: (slave eth0): making interface the new active one
[  512.350855] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.573001] bond0: (slave eth0): Releasing backup interface
[  516.700094] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.923077] bond0: (slave eth0): Releasing backup interface
[  520.962032] bond0 (unregistering): Released all slaves