[  514.274799] bond0: (slave eth0): making interface the new active one
[  514.274876] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.491802] bond0: (slave eth0): Releasing backup interface
[  518.597611] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.779068] bond0: (slave eth0): Releasing backup interface
[  522.809034] bond0 (unregistering): Released all slaves