[  520.835565] bond0: (slave eth0): making interface the new active one
[  520.835700] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.079929] bond0: (slave eth0): Releasing backup interface
[  525.198730] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.430029] bond0: (slave eth0): Releasing backup interface
[  529.452979] bond0 (unregistering): Released all slaves