[  660.026656] bond0: (slave eth0): making interface the new active one
[  660.026731] bond0: (slave eth0): Enslaving as an active interface with an up link
[  664.204966] bond0: (slave eth0): Releasing backup interface
[  664.266057] bond0: (slave eth0): Enslaving as an active interface with an up link
[  668.427282] bond0: (slave eth0): Releasing backup interface
[  668.464173] bond0 (unregistering): Released all slaves