[  519.325426] bond0: (slave eth0): making interface the new active one
[  519.325513] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.547052] bond0: (slave eth0): Releasing backup interface
[  523.644307] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.829989] bond0: (slave eth0): Releasing backup interface
[  527.860954] bond0 (unregistering): Released all slaves