[  520.580663] bond0: (slave eth0): making interface the new active one
[  520.580753] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.756433] bond0: (slave eth0): Releasing backup interface
[  524.843541] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.048504] bond0: (slave eth0): Releasing backup interface
[  529.087477] bond0 (unregistering): Released all slaves