[  501.422832] bond0: (slave eth0): making interface the new active one
[  501.422949] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.617564] bond0: (slave eth0): Releasing backup interface
[  505.689417] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.849331] bond0: (slave eth0): Releasing backup interface
[  509.889238] bond0 (unregistering): Released all slaves