[  519.380526] bond0: (slave eth0): making interface the new active one
[  519.380625] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.531979] bond0: (slave eth0): Releasing backup interface
[  523.594357] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.758118] bond0: (slave eth0): Releasing backup interface
[  527.786104] bond0 (unregistering): Released all slaves