[  505.137480] bond0: (slave eth0): making interface the new active one
[  505.137566] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.330740] bond0: (slave eth0): Releasing backup interface
[  509.400153] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.556325] bond0: (slave eth0): Releasing backup interface
[  513.585327] bond0 (unregistering): Released all slaves