[  515.478788] bond0: (slave eth0): making interface the new active one
[  515.478857] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.705150] bond0: (slave eth0): Releasing backup interface
[  519.812600] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.996062] bond0: (slave eth0): Releasing backup interface
[  524.027037] bond0 (unregistering): Released all slaves