[  501.405032] bond0: (slave eth0): making interface the new active one
[  501.405164] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.610039] bond0: (slave eth0): Releasing backup interface
[  505.682466] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.837367] bond0: (slave eth0): Releasing backup interface
[  509.868249] bond0 (unregistering): Released all slaves