[  505.558724] bond0: (slave eth0): making interface the new active one
[  505.558819] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.776834] bond0: (slave eth0): Releasing backup interface
[  509.850674] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.002750] bond0: (slave eth0): Releasing backup interface
[  514.038380] bond0 (unregistering): Released all slaves