[  516.507446] bond0: (slave eth0): making interface the new active one
[  516.507543] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.727821] bond0: (slave eth0): Releasing backup interface
[  520.832392] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.019926] bond0: (slave eth0): Releasing backup interface
[  525.042789] bond0 (unregistering): Released all slaves