[  519.203446] bond0: (slave eth0): making interface the new active one
[  519.203553] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.442633] bond0: (slave eth0): Releasing backup interface
[  523.585804] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.780194] bond0: (slave eth0): Releasing backup interface
[  527.810941] bond0 (unregistering): Released all slaves