[  517.336040] bond0: (slave eth0): making interface the new active one
[  517.336125] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.560688] bond0: (slave eth0): Releasing backup interface
[  521.690708] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.914120] bond0: (slave eth0): Releasing backup interface
[  525.952052] bond0 (unregistering): Released all slaves