[  517.597035] bond0: (slave eth0): making interface the new active one
[  517.597126] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.813892] bond0: (slave eth0): Releasing backup interface
[  521.909184] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.106956] bond0: (slave eth0): Releasing backup interface
[  526.139870] bond0 (unregistering): Released all slaves