[  519.189483] bond0: (slave eth0): making interface the new active one
[  519.189598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.415160] bond0: (slave eth0): Releasing backup interface
[  523.490504] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.639526] bond0: (slave eth0): Releasing backup interface
[  527.668513] bond0 (unregistering): Released all slaves