[  517.986339] bond0: (slave eth0): making interface the new active one
[  517.986424] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.200779] bond0: (slave eth0): Releasing backup interface
[  522.318458] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.490759] bond0: (slave eth0): Releasing backup interface
[  526.519133] bond0 (unregistering): Released all slaves