[  515.011695] bond0: (slave eth0): making interface the new active one
[  515.011784] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.186916] bond0: (slave eth0): Releasing backup interface
[  519.249869] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.414506] bond0: (slave eth0): Releasing backup interface
[  523.440500] bond0 (unregistering): Released all slaves