[  515.927843] bond0: (slave eth0): making interface the new active one
[  515.927908] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.080956] bond0: (slave eth0): Releasing backup interface
[  520.144679] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.306539] bond0: (slave eth0): Releasing backup interface
[  524.332498] bond0 (unregistering): Released all slaves