[  501.109389] bond0: (slave eth0): making interface the new active one
[  501.109493] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.285221] bond0: (slave eth0): Releasing backup interface
[  505.367146] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.510325] bond0: (slave eth0): Releasing backup interface
[  509.547211] bond0 (unregistering): Released all slaves