[  516.057868] bond0: (slave eth0): making interface the new active one
[  516.057937] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.287123] bond0: (slave eth0): Releasing backup interface
[  520.388748] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.571267] bond0: (slave eth0): Releasing backup interface
[  524.596204] bond0 (unregistering): Released all slaves