[  515.943609] bond0: (slave eth0): making interface the new active one
[  515.943696] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.182439] bond0: (slave eth0): Releasing backup interface
[  520.282484] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.466416] bond0: (slave eth0): Releasing backup interface
[  524.494306] bond0 (unregistering): Released all slaves