[  515.919005] bond0: (slave eth0): making interface the new active one
[  515.919086] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.147052] bond0: (slave eth0): Releasing backup interface
[  520.242524] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.430000] bond0: (slave eth0): Releasing backup interface
[  524.455977] bond0 (unregistering): Released all slaves