[  542.338763] bond0: (slave eth0): making interface the new active one
[  542.338830] bond0: (slave eth0): Enslaving as an active interface with an up link
[  546.576844] bond0: (slave eth0): Releasing backup interface
[  546.660757] bond0: (slave eth0): Enslaving as an active interface with an up link
[  550.858633] bond0: (slave eth0): Releasing backup interface
[  550.896590] bond0 (unregistering): Released all slaves