[  501.345362] bond0: (slave eth0): making interface the new active one
[  501.345451] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.556710] bond0: (slave eth0): Releasing backup interface
[  505.639037] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.781507] bond0: (slave eth0): Releasing backup interface
[  509.797301] bond0 (unregistering): Released all slaves