[  514.406671] bond0: (slave eth0): making interface the new active one
[  514.406782] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.601634] bond0: (slave eth0): Releasing backup interface
[  518.666085] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.824443] bond0: (slave eth0): Releasing backup interface
[  522.854462] bond0 (unregistering): Released all slaves