[  519.310768] bond0: (slave eth0): making interface the new active one
[  519.310839] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.468355] bond0: (slave eth0): Releasing backup interface
[  523.535823] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.696559] bond0: (slave eth0): Releasing backup interface
[  527.727455] bond0 (unregistering): Released all slaves