[  519.176947] bond0: (slave eth0): making interface the new active one
[  519.177040] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.348829] bond0: (slave eth0): Releasing backup interface
[  523.413652] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.576603] bond0: (slave eth0): Releasing backup interface
[  527.609525] bond0 (unregistering): Released all slaves