[  515.710058] bond0: (slave eth0): making interface the new active one
[  515.710121] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.963206] bond0: (slave eth0): Releasing backup interface
[  520.077609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.255228] bond0: (slave eth0): Releasing backup interface
[  524.283903] bond0 (unregistering): Released all slaves