[  515.754844] bond0: (slave eth0): making interface the new active one
[  515.754931] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.960790] bond0: (slave eth0): Releasing backup interface
[  520.075268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.253545] bond0: (slave eth0): Releasing backup interface
[  524.279875] bond0 (unregistering): Released all slaves