[  519.065737] bond0: (slave eth0): making interface the new active one
[  519.065869] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.370322] bond0: (slave eth0): Releasing backup interface
[  523.613586] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.907099] bond0: (slave eth0): Releasing backup interface
[  527.942048] bond0 (unregistering): Released all slaves