[  516.348795] bond0: (slave eth0): making interface the new active one
[  516.348887] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.517269] bond0: (slave eth0): Releasing backup interface
[  520.580103] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.748318] bond0: (slave eth0): Releasing backup interface
[  524.775881] bond0 (unregistering): Released all slaves