[  515.887098] bond0: (slave eth0): making interface the new active one
[  515.887196] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.084295] bond0: (slave eth0): Releasing backup interface
[  520.166516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.309235] bond0: (slave eth0): Releasing backup interface
[  524.335254] bond0 (unregistering): Released all slaves