[  517.617274] bond0: (slave eth0): making interface the new active one
[  517.617370] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.820965] bond0: (slave eth0): Releasing backup interface
[  521.949525] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.164077] bond0: (slave eth0): Releasing backup interface
[  526.200133] bond0 (unregistering): Released all slaves