[  520.943363] bond0: (slave eth0): making interface the new active one
[  520.943452] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.130237] bond0: (slave eth0): Releasing backup interface
[  525.198637] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.356296] bond0: (slave eth0): Releasing backup interface
[  529.378193] bond0 (unregistering): Released all slaves