[  515.979463] bond0: (slave eth0): making interface the new active one
[  515.979545] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.222614] bond0: (slave eth0): Releasing backup interface
[  520.341291] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.508101] bond0: (slave eth0): Releasing backup interface
[  524.545082] bond0 (unregistering): Released all slaves