[  516.018452] bond0: (slave eth0): making interface the new active one
[  516.018539] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.212309] bond0: (slave eth0): Releasing backup interface
[  520.300509] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.509270] bond0: (slave eth0): Releasing backup interface
[  524.540492] bond0 (unregistering): Released all slaves