[  520.730519] bond0: (slave eth0): making interface the new active one
[  520.730600] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.971186] bond0: (slave eth0): Releasing backup interface
[  525.079122] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.250426] bond0: (slave eth0): Releasing backup interface
[  529.278377] bond0 (unregistering): Released all slaves