[  512.775072] bond0: (slave eth0): making interface the new active one
[  512.775183] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.946717] bond0: (slave eth0): Releasing backup interface
[  517.032683] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.176426] bond0: (slave eth0): Releasing backup interface
[  521.204268] bond0 (unregistering): Released all slaves