[  515.589806] bond0: (slave eth0): making interface the new active one
[  515.589879] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.847844] bond0: (slave eth0): Releasing backup interface
[  519.961663] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.128156] bond0: (slave eth0): Releasing backup interface
[  524.163163] bond0 (unregistering): Released all slaves