[  517.801943] bond0: (slave eth0): making interface the new active one
[  517.802043] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.993715] bond0: (slave eth0): Releasing backup interface
[  522.059853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.223625] bond0: (slave eth0): Releasing backup interface
[  526.249659] bond0 (unregistering): Released all slaves