[  516.379250] bond0: (slave eth0): making interface the new active one
[  516.379349] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.529490] bond0: (slave eth0): Releasing backup interface
[  520.602015] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.756734] bond0: (slave eth0): Releasing backup interface
[  524.791191] bond0 (unregistering): Released all slaves