[  521.097981] bond0: (slave eth0): making interface the new active one
[  521.098073] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.252226] bond0: (slave eth0): Releasing backup interface
[  525.318473] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.487523] bond0: (slave eth0): Releasing backup interface
[  529.516422] bond0 (unregistering): Released all slaves