[  519.084579] bond0: (slave eth0): making interface the new active one
[  519.084745] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.286282] bond0: (slave eth0): Releasing backup interface
[  523.395186] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.571741] bond0: (slave eth0): Releasing backup interface
[  527.596543] bond0 (unregistering): Released all slaves