[  514.571929] bond0: (slave eth0): making interface the new active one
[  514.572024] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.808557] bond0: (slave eth0): Releasing backup interface
[  518.921278] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.094996] bond0: (slave eth0): Releasing backup interface
[  523.127957] bond0 (unregistering): Released all slaves