[  520.833026] bond0: (slave eth0): making interface the new active one
[  520.833149] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.016101] bond0: (slave eth0): Releasing backup interface
[  525.096334] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.239235] bond0: (slave eth0): Releasing backup interface
[  529.273239] bond0 (unregistering): Released all slaves