[  519.238109] bond0: (slave eth0): making interface the new active one
[  519.238190] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.407557] bond0: (slave eth0): Releasing backup interface
[  523.481139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.629727] bond0: (slave eth0): Releasing backup interface
[  527.663686] bond0 (unregistering): Released all slaves