[  513.526332] bond0: (slave eth0): making interface the new active one
[  513.526394] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.719379] bond0: (slave eth0): Releasing backup interface
[  517.823200] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.003747] bond0: (slave eth0): Releasing backup interface
[  522.045766] bond0 (unregistering): Released all slaves