[  502.253770] bond0: (slave eth0): making interface the new active one
[  502.253874] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.451224] bond0: (slave eth0): Releasing backup interface
[  506.533099] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.677482] bond0: (slave eth0): Releasing backup interface
[  510.704375] bond0 (unregistering): Released all slaves