[  520.896751] bond0: (slave eth0): making interface the new active one
[  520.896835] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.064417] bond0: (slave eth0): Releasing backup interface
[  525.136740] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.289197] bond0: (slave eth0): Releasing backup interface
[  529.328172] bond0 (unregistering): Released all slaves