[  517.316716] bond0: (slave eth0): making interface the new active one
[  517.316818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.489831] bond0: (slave eth0): Releasing backup interface
[  521.567870] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.718266] bond0: (slave eth0): Releasing backup interface
[  525.739133] bond0 (unregistering): Released all slaves