[  519.410011] bond0: (slave eth0): making interface the new active one
[  519.410078] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.611309] bond0: (slave eth0): Releasing backup interface
[  523.712348] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.897072] bond0: (slave eth0): Releasing backup interface
[  527.925965] bond0 (unregistering): Released all slaves