[  519.486944] bond0: (slave eth0): making interface the new active one
[  519.487071] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.671936] bond0: (slave eth0): Releasing backup interface
[  523.741792] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.896686] bond0: (slave eth0): Releasing backup interface
[  527.933620] bond0 (unregistering): Released all slaves