[  516.226929] bond0: (slave eth0): making interface the new active one
[  516.227010] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.476368] bond0: (slave eth0): Releasing backup interface
[  520.579945] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.758931] bond0: (slave eth0): Releasing backup interface
[  524.784994] bond0 (unregistering): Released all slaves