[  520.621768] bond0: (slave eth0): making interface the new active one
[  520.621859] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.806783] bond0: (slave eth0): Releasing backup interface
[  524.865976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.036139] bond0: (slave eth0): Releasing backup interface
[  529.064092] bond0 (unregistering): Released all slaves