[  509.738368] bond0: (slave eth0): making interface the new active one
[  509.738453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.940087] bond0: (slave eth0): Releasing backup interface
[  514.054659] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.225777] bond0: (slave eth0): Releasing backup interface
[  518.257687] bond0 (unregistering): Released all slaves