[  515.181643] bond0: (slave eth0): making interface the new active one
[  515.181718] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.388959] bond0: (slave eth0): Releasing backup interface
[  519.508083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.746184] bond0: (slave eth0): Releasing backup interface
[  523.781011] bond0 (unregistering): Released all slaves