[  521.858460] bond0: (slave eth0): making interface the new active one
[  521.858608] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.026696] bond0: (slave eth0): Releasing backup interface
[  526.094863] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.264946] bond0: (slave eth0): Releasing backup interface
[  530.290291] bond0 (unregistering): Released all slaves