[  520.683795] bond0: (slave eth0): making interface the new active one
[  520.683877] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.874235] bond0: (slave eth0): Releasing backup interface
[  524.953818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.107539] bond0: (slave eth0): Releasing backup interface
[  529.129432] bond0 (unregistering): Released all slaves