[  520.577461] bond0: (slave eth0): making interface the new active one
[  520.577554] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.823481] bond0: (slave eth0): Releasing backup interface
[  524.923975] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.118073] bond0: (slave eth0): Releasing backup interface
[  529.154962] bond0 (unregistering): Released all slaves