[  522.045560] bond0: (slave eth0): making interface the new active one
[  522.045712] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.217458] bond0: (slave eth0): Releasing backup interface
[  526.281176] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.443953] bond0: (slave eth0): Releasing backup interface
[  530.493924] bond0 (unregistering): Released all slaves