[  504.241069] bond0: (slave eth0): making interface the new active one
[  504.241137] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.420675] bond0: (slave eth0): Releasing backup interface
[  508.497785] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.649220] bond0: (slave eth0): Releasing backup interface
[  512.681213] bond0 (unregistering): Released all slaves