[  520.631877] bond0: (slave eth0): making interface the new active one
[  520.631970] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.813863] bond0: (slave eth0): Releasing backup interface
[  524.894579] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.043459] bond0: (slave eth0): Releasing backup interface
[  529.069980] bond0 (unregistering): Released all slaves