[  515.107414] bond0: (slave eth0): making interface the new active one
[  515.107491] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.328956] bond0: (slave eth0): Releasing backup interface
[  519.439095] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.609001] bond0: (slave eth0): Releasing backup interface
[  523.649023] bond0 (unregistering): Released all slaves