[  501.704957] bond0: (slave eth0): making interface the new active one
[  501.705051] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.870460] bond0: (slave eth0): Releasing backup interface
[  505.937430] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.103591] bond0: (slave eth0): Releasing backup interface
[  510.139087] bond0 (unregistering): Released all slaves