[  501.071509] bond0: (slave eth0): making interface the new active one
[  501.071607] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.290780] bond0: (slave eth0): Releasing backup interface
[  505.362319] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.519348] bond0: (slave eth0): Releasing backup interface
[  509.554360] bond0 (unregistering): Released all slaves