[  508.859559] bond0: (slave eth0): making interface the new active one
[  508.859657] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.041457] bond0: (slave eth0): Releasing backup interface
[  513.112226] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.266511] bond0: (slave eth0): Releasing backup interface
[  517.285467] bond0 (unregistering): Released all slaves