[  517.603707] bond0: (slave eth0): making interface the new active one
[  517.603816] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.821402] bond0: (slave eth0): Releasing backup interface
[  521.936525] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.093966] bond0: (slave eth0): Releasing backup interface
[  526.127942] bond0 (unregistering): Released all slaves