[  515.799929] bond0: (slave eth0): making interface the new active one
[  515.800055] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.009496] bond0: (slave eth0): Releasing backup interface
[  520.076368] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.231278] bond0: (slave eth0): Releasing backup interface
[  524.248204] bond0 (unregistering): Released all slaves