[  520.439765] bond0: (slave eth0): making interface the new active one
[  520.439840] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.619885] bond0: (slave eth0): Releasing backup interface
[  524.679109] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.848446] bond0: (slave eth0): Releasing backup interface
[  528.890465] bond0 (unregistering): Released all slaves