[  510.819940] bond0: (slave eth0): making interface the new active one
[  510.820054] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.026617] bond0: (slave eth0): Releasing backup interface
[  515.108744] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.253244] bond0: (slave eth0): Releasing backup interface
[  519.274180] bond0 (unregistering): Released all slaves