[  511.318066] bond0: (slave eth0): making interface the new active one
[  511.318142] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.543114] bond0: (slave eth0): Releasing backup interface
[  515.630925] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.825886] bond0: (slave eth0): Releasing backup interface
[  519.871770] bond0 (unregistering): Released all slaves