[  517.060497] bond0: (slave eth0): making interface the new active one
[  517.060586] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.308269] bond0: (slave eth0): Releasing backup interface
[  521.409686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.589004] bond0: (slave eth0): Releasing backup interface
[  525.615987] bond0 (unregistering): Released all slaves